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  "official_results_released": false,
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    "label": "Traffic deaths per 100,000 residents",
    "unit": "per 100000",
    "protocol_ref": "civometra.road-deaths.measurement@1.0.0"
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    "label": "Calendar 2024 · crash year",
    "start": "2024-01-01",
    "end": "2024-12-31",
    "population_reference_date": "2024-07-01",
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    "calculation": "100000 * source-classified fatal persons in qualifying motor-vehicle-in-transport public-access trafficway crashes occurring within the complete reviewed functional urban region during a calendar crash year / that region's usual-resident midyear population for the same year. Count persons, not fatal crashes; allocate by crash year, not death year. Retain source-classified qualifying cross-year/unknown death dates and cases with missing geocodes; never select only geocoded cases, impute unknown severity, claim unobserved individual follow-up intervals, or substitute resident deaths occurring elsewhere.",
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      "death_followup_days": 30,
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    "us_population_cbsas": 925,
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      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
      "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
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        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip"
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      "licence": "NHTSA public U.S. Government information; distribution/copying permitted",
      "licence_url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
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      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
      "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
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        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
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      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html",
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html",
      "retrieved_at": "2026-10-27T00:15:17.185451+00:00"
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      "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0",
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html",
      "retrieved_at": "2026-10-27T00:15:17.185451+00:00"
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      "reuse_review": "permitted-with-attribution",
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      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html",
      "retrieved_at": "2026-10-27T00:13:09.301670+00:00"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html",
      "retrieved_at": "2026-10-27T00:18:00.601312+00:00"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html",
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html",
      "retrieved_at": "2026-10-27T00:23:20.672483+00:00"
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    {
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html",
      "retrieved_at": "2026-10-27T00:23:20.865246+00:00"
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    {
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      "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6",
      "source_urls": [
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
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      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
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    {
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
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      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
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      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
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      "sha256": "7adbc22337ddb08dca3cde2cfb994e57649a62fa28d3912acf322aad56403e39",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-new-york-city-county-membership-population",
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      "sha256": "31633b1f32e0c3c3e6d205574b0e3cde9ee99ab9786f575a1c5088111386e5f2",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-new-york-city-native-boundary",
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      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
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      "sha256": "6c94c54ed2f1eb80b8a752b4fd1f6ef04d42354b51e42433fb0284e67393df0f",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
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      "sha256": "7f1705fd6268820cfd927f5f9e7bf17970efa7c8233030188c110b0d9c710e3d",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
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      "sha256": "5f1c8125cd93e38e1ddd28130e0fb40cb3db0e16c1bdfc597d97f6c8da375630",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
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      "sha256": "8df2af4146e0f820b57ce300d2678ac82f90eb3da8342dcd721768b8d378d7b6",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
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      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
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      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
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      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
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      "sha256": "ec4abeadaa46c6dc8acfab53983023407599dcb7b54d0b454333453f2f83cae9",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
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      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
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    {
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      "sha256": "04a148d8ac28e2cd9bdefd5eb002ec7ab1f9e4a6d9f72f88e2377c34bce27853",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
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      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
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      "sha256": "4da9aac198b5262bb6084c71ff92049594d92b556af857c3ddabe6f753fe3cef",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
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      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
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      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
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      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
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      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-chicago-county-membership-population",
      "archive_url": "/data/source-frames/road-2024-chicago-county-membership-population.json",
      "sha256": "58a92371278879ecc4d9e62f96829826d0877cdb31e79b7d16db6b872380a00d",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-chicago-native-boundary",
      "archive_url": "/data/source-frames/road-2024-chicago-native-boundary.json",
      "sha256": "ea466f700acde81a0566a608512ce81c610db5ad7e24e667f0c29191a6b68235",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-chicago-fatal-persons",
      "archive_url": "/data/source-frames/road-2024-chicago-fatal-persons.json",
      "sha256": "569d431d6dbca94eee80da5c6885defa182ab342db9906110d581e041bc37901",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-chicago-fatal-crashes",
      "archive_url": "/data/source-frames/road-2024-chicago-fatal-crashes.json",
      "sha256": "fe8f56c6e1b705c3f9b15625dd6a10d881cbb4f3a54856cff3ea7d44df2eb301",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-boston-county-membership-population",
      "archive_url": "/data/source-frames/road-2024-boston-county-membership-population.json",
      "sha256": "33aebaf168d8ad0c8860c7de62dbdba0d51a5638e10287f1a4f21064ae354355",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-boston-native-boundary",
      "archive_url": "/data/source-frames/road-2024-boston-native-boundary.json",
      "sha256": "b0ecf7cf451ac1d8756462a1a517311e0b5c801b18cdf90bf558aaac20c9fde1",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-boston-fatal-persons",
      "archive_url": "/data/source-frames/road-2024-boston-fatal-persons.json",
      "sha256": "d4c53fdd7d422b045351ea488e44a4303d8c02f1abfd37b3be9a6722ec71e11d",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-boston-fatal-crashes",
      "archive_url": "/data/source-frames/road-2024-boston-fatal-crashes.json",
      "sha256": "499661b722a0a614ca6f2096b72bef6cde15abdc62f82dc17743100c22b5b6b1",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-washington-dc-county-membership-population",
      "archive_url": "/data/source-frames/road-2024-washington-dc-county-membership-population.json",
      "sha256": "8fcbe9e141daab0dcd5891bf0b071e3389f75cf1d553e5099e63cfc438f9f173",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-washington-dc-native-boundary",
      "archive_url": "/data/source-frames/road-2024-washington-dc-native-boundary.json",
      "sha256": "a66806f4c4ab8dc539816f3649de4e274f625f82b30ade0f6c08f0ecfe3d5ccf",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-washington-dc-fatal-persons",
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      "sha256": "2aba112a4c739abfe4607d22262188fc11f297babb9884c04b543683a9915cc6",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-washington-dc-fatal-crashes",
      "archive_url": "/data/source-frames/road-2024-washington-dc-fatal-crashes.json",
      "sha256": "e935e03049ce49fd4abe3f7ffa3ad19658a17a476727de4f9ec6208400fbdf5c",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-seattle-county-membership-population",
      "archive_url": "/data/source-frames/road-2024-seattle-county-membership-population.json",
      "sha256": "a7f1ae06c9ab85f7312aa640fdd3491c011e02338609c8b42bc6c05562fe635f",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-seattle-native-boundary",
      "archive_url": "/data/source-frames/road-2024-seattle-native-boundary.json",
      "sha256": "6e7e869b9885e9abcea50ea117e34dbab98c1dd7b67a251310a0abe4f916138a",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-seattle-fatal-persons",
      "archive_url": "/data/source-frames/road-2024-seattle-fatal-persons.json",
      "sha256": "74ec72d077d6e3ea66cdb96b1fb321e69e598b220187b191b4224427fea8fc5c",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    },
    {
      "id": "road-2024-seattle-fatal-crashes",
      "archive_url": "/data/source-frames/road-2024-seattle-fatal-crashes.json",
      "sha256": "e22a813b67c16a8d6f15fc7d021a851319c4d666af75adbaf13e28c21f96f335",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
        "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx",
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/metro/totals/cbsa-est2024-alldata.csv"
      ],
      "licence": "U.S. Census Bureau federal factual data and native statistical boundaries",
      "licence_url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
      "reuse_review": "permitted-with-attribution",
      "reuse_reviewed_at": "2026-10-27",
      "attribution": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
      "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
      "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
    }
  ],
  "availability": [
    {
      "city_slug": "new-york-city",
      "city_name": "New York City",
      "source_pair_available": true,
      "source_area_id": "35620",
      "status": "reviewed-source-pair",
      "reason": "Complete source county numerator and primary same-region residents reviewed; current admission remains separate."
    },
    {
      "city_slug": "san-francisco",
      "city_name": "San Francisco",
      "source_pair_available": true,
      "source_area_id": "41860",
      "status": "reviewed-source-pair",
      "reason": "Complete source county numerator and primary same-region residents reviewed; current admission remains separate."
    },
    {
      "city_slug": "london",
      "city_name": "London",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "toronto",
      "city_name": "Toronto",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "berlin",
      "city_name": "Berlin",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "tokyo",
      "city_name": "Tokyo",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "sydney",
      "city_name": "Sydney",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "singapore",
      "city_name": "Singapore",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "calgary",
      "city_name": "Calgary",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "los-angeles",
      "city_name": "Los Angeles",
      "source_pair_available": true,
      "source_area_id": "31080",
      "status": "reviewed-source-pair",
      "reason": "Complete source county numerator and primary same-region residents reviewed; current admission remains separate."
    },
    {
      "city_slug": "chicago",
      "city_name": "Chicago",
      "source_pair_available": true,
      "source_area_id": "16980",
      "status": "reviewed-source-pair",
      "reason": "Complete source county numerator and primary same-region residents reviewed; current admission remains separate."
    },
    {
      "city_slug": "vancouver",
      "city_name": "Vancouver",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "boston",
      "city_name": "Boston",
      "source_pair_available": true,
      "source_area_id": "14460",
      "status": "reviewed-source-pair",
      "reason": "Complete source county numerator and primary same-region residents reviewed; current admission remains separate."
    },
    {
      "city_slug": "washington-dc",
      "city_name": "Washington DC",
      "source_pair_available": true,
      "source_area_id": "47900",
      "status": "reviewed-source-pair",
      "reason": "Complete source county numerator and primary same-region residents reviewed; current admission remains separate."
    },
    {
      "city_slug": "seattle",
      "city_name": "Seattle",
      "source_pair_available": true,
      "source_area_id": "42660",
      "status": "reviewed-source-pair",
      "reason": "Complete source county numerator and primary same-region residents reviewed; current admission remains separate."
    },
    {
      "city_slug": "montreal",
      "city_name": "Montreal",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "paris",
      "city_name": "Paris",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "madrid",
      "city_name": "Madrid",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "rome",
      "city_name": "Rome",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "amsterdam",
      "city_name": "Amsterdam",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "barcelona",
      "city_name": "Barcelona",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "vienna",
      "city_name": "Vienna",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "munich",
      "city_name": "Munich",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "stockholm",
      "city_name": "Stockholm",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "hong-kong",
      "city_name": "Hong Kong",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "seoul",
      "city_name": "Seoul",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "shanghai",
      "city_name": "Shanghai",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "beijing",
      "city_name": "Beijing",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "bangkok",
      "city_name": "Bangkok",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "osaka",
      "city_name": "Osaka",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "kuala-lumpur",
      "city_name": "Kuala Lumpur",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "mumbai",
      "city_name": "Mumbai",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "melbourne",
      "city_name": "Melbourne",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "brisbane",
      "city_name": "Brisbane",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "perth",
      "city_name": "Perth",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "auckland",
      "city_name": "Auckland",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "sao-paulo",
      "city_name": "São Paulo",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "buenos-aires",
      "city_name": "Buenos Aires",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "rio-de-janeiro",
      "city_name": "Rio de Janeiro",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "lima",
      "city_name": "Lima",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "santiago",
      "city_name": "Santiago",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "dubai",
      "city_name": "Dubai",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "tel-aviv",
      "city_name": "Tel Aviv",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "istanbul",
      "city_name": "Istanbul",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "cape-town",
      "city_name": "Cape Town",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "cairo",
      "city_name": "Cairo",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "zurich",
      "city_name": "Zurich",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "copenhagen",
      "city_name": "Copenhagen",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "helsinki",
      "city_name": "Helsinki",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "oslo",
      "city_name": "Oslo",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "dublin",
      "city_name": "Dublin",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "edinburgh",
      "city_name": "Edinburgh",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "prague",
      "city_name": "Prague",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "brussels",
      "city_name": "Brussels",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "lisbon",
      "city_name": "Lisbon",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "warsaw",
      "city_name": "Warsaw",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "taipei",
      "city_name": "Taipei",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "manila",
      "city_name": "Manila",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "jakarta",
      "city_name": "Jakarta",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "ho-chi-minh-city",
      "city_name": "Ho Chi Minh City",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "delhi",
      "city_name": "Delhi",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "bangalore",
      "city_name": "Bangalore",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    },
    {
      "city_slug": "kyoto",
      "city_name": "Kyoto",
      "source_pair_available": false,
      "source_area_id": null,
      "status": "outside-us-fars-source-universe",
      "reason": "US FARS does not measure this non-US destination. No national proxy, zero, name match, or unreviewed nearby geography substituted."
    }
  ],
  "records": [
    {
      "city_slug": "new-york-city",
      "value": 4.458313862688145,
      "unit": "per 100000",
      "period_start": "2024-01-01",
      "period_end": "2024-12-31",
      "source_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
      "geography_type": "harmonized-urban-area",
      "geography_ref": "census-tiger2024-road-v1-0:new-york-city",
      "protocol_ref": "civometra.road-deaths.measurement@1.0.0",
      "source_record_ref": "FARS2024 person.csv INJ_SEV4; STATE/ST_CASE joins and complete OMB2023 MSA 35620 counties; original rows linked in derivation.",
      "universe": "All source-classified fatal persons in qualifying motor-vehicle-in-transport traffic crashes on trafficways customarily open to public access within a reviewed functional urban region, irrespective of victim residence or victim mode. The source classification requires death immediately or within 30 days (720 hours) of the qualifying crash. The denominator is the same region's usual-resident midyear population for the crash year. This is a territorial source count scaled by residents, not resident travel-risk probability. Nonmotor-only events and a broader nonmotor-inclusive road-death total are outside the adopted construct. Every future country source requires independent evidence of this event scope and region/population compatibility or an exact separately reviewed bridge.",
      "denominator": 19940274,
      "publisher": "BestCityToLive / AINT.app, derived from NHTSA and U.S. Census Bureau",
      "source_label": "Provisional2024 FARS motor-vehicle traffic fatal persons / Vintage2024 residents",
      "geography": "New York-Newark-Jersey City, NY-NJ · OMB2023 MSA / Jan2024 native boundaries",
      "definition_version": "1.0.0",
      "analytical_area_id": "us-omb2023-cbsa:35620",
      "boundary_label": "New York-Newark-Jersey City, NY-NJ · OMB2023 MSA / Jan2024 native boundaries",
      "boundary_reference_year": 2024,
      "population_reference_year": 2024,
      "calculation_method": "100000 * source-classified fatal persons in qualifying motor-vehicle-in-transport public-access trafficway crashes occurring within the complete reviewed functional urban region during a calendar crash year / that region's usual-resident midyear population for the same year. Count persons, not fatal crashes; allocate by crash year, not death year. Retain source-classified qualifying cross-year/unknown death dates and cases with missing geocodes; never select only geocoded cases, impute unknown severity, claim unobserved individual follow-up intervals, or substitute resident deaths occurring elsewhere.",
      "scope_notice": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
      "derivation": {
        "kind": "territorial-fatal-persons-per-midyear-residents",
        "calculation": "100000 * source INJ_SEV4 fatal persons selected by complete MSA STATE+COUNTY membership / original July1 2024 MSA residents from Vintage2024. Count people, not crashes; use crash year2024, not death year. Retain qualifying cross-year/unknown death dates and missing geocodes; no unknown-severity imputation or favourable population-vintage selection.",
        "scale": 100000,
        "numerator_person_fatalities": 889,
        "fatal_crashes_not_numerator": 839,
        "midyear_resident_population": 19940274,
        "population_reference_date": "2024-07-01",
        "population_estimate_vintage": 2024,
        "calendar_period": {
          "year": 2024,
          "start": "2024-01-01",
          "end": "2024-12-31"
        },
        "exact_rational": {
          "numerator": 88900000,
          "denominator": 19940274,
          "reduced_fraction": "44450000/9970137"
        },
        "source_victim_selector": {
          "file": "person.csv",
          "field": "INJ_SEV",
          "equals": "4",
          "label": "Fatal Injury (K)"
        },
        "location_selector": "Person STATE+COUNTY, independently equal to joined accident STATE+COUNTY; exact OMB county membership",
        "fatal_person_identity": [
          "STATE",
          "ST_CASE",
          "VEH_NO",
          "PER_NO"
        ],
        "crash_identity": [
          "STATE",
          "ST_CASE"
        ],
        "source_classification": {
          "motor_vehicle_in_transport_required": true,
          "death_followup_days": 30,
          "maximum_followup_hours": 720,
          "trafficway_basis": "customarily-open-to-public",
          "time_allocation": "crash-year",
          "fatal_injury_code": "4",
          "prior_death_code": "6",
          "unknown_injury_code": "9",
          "individual_death_timestamps_complete": false,
          "independent_720h_verification": false,
          "release_status": "2024 Annual Report File (ARF), provisional and subject to finalization",
          "intentional_event_rule": "Manual813798 page521: suicide-only cases are not coded; when other fatalities occur, the suicide victim is severity6 or0, not4. Prior-to-crash severity6 and unknown9 are not added.",
          "notice": "FARS requires a motor vehicle in transport and source-classified fatal injury within30days/720hours on a trafficway customarily open to the public. That is access, not legal road ownership or blanket public-parking coverage. Incomplete individual timestamps remain unknown; no independent720hour verification is claimed."
        },
        "source_geography": {
          "native_cbsa_code": "35620",
          "native_geoidfq": "310M700US35620",
          "source_area_name": "New York-Newark-Jersey City, NY-NJ",
          "membership_edition": "OMB July2023, 2020 standards",
          "native_boundary_product": "TIGER/Line2024",
          "native_boundary_reference_date": "2024-01-01",
          "native_crs": "EPSG:4269",
          "native_record_number": 843,
          "county_count": 22,
          "county_fips": [
            "34003",
            "34013",
            "34017",
            "34019",
            "34023",
            "34025",
            "34027",
            "34029",
            "34031",
            "34035",
            "34037",
            "34039",
            "36005",
            "36047",
            "36059",
            "36061",
            "36079",
            "36081",
            "36085",
            "36087",
            "36103",
            "36119"
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          "point_adapter": {
            "source_crs": "EPSG:4326",
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            "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
            "definition": "proj=noop ellps=GRS80",
            "accuracy_m": 4,
            "is_ballpark": false,
            "coordinate_epoch": null,
            "input_point": [
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            ],
            "transformed_point": [
              -74.006,
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            ],
            "native_matches": [
              "35620"
            ],
            "diagnostic_distance_to_external_boundary_m": 25820.106382993992,
            "distance_notice": "Approximate diagnostic interior distance on source NAD83 geometry; no measured geospatial accuracy is claimed.",
            "qualification": "EPSG operation represents WGS84/NAD83 agreement at stated4m accuracy; its no-op pipeline is not a claim of exact datum identity or survey accuracy.",
            "proof": {
              "id": "road-2024-geometry-proof",
              "url": "/data/source-frames/road-2024-geometry-source-proof.json",
              "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6"
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        "original_population_record": {
          "filename": "cbsa-est2024-alldata.csv",
          "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0",
          "csv_row_1based": 1032,
          "source_field": "POPESTIMATE2024",
          "raw_source_record": {
            "CBSA": "35620",
            "MDIV": "",
            "STCOU": "",
            "NAME": "New York-Newark-Jersey City, NY-NJ",
            "LSAD": "Metropolitan Statistical Area",
            "ESTIMATESBASE2020": "20083412",
            "POPESTIMATE2020": "19991108",
            "POPESTIMATE2021": "19714596",
            "POPESTIMATE2022": "19619844",
            "POPESTIMATE2023": "19726871",
            "POPESTIMATE2024": "19940274",
            "NPOPCHG2020": "-92304",
            "NPOPCHG2021": "-276512",
            "NPOPCHG2022": "-94752",
            "NPOPCHG2023": "107027",
            "NPOPCHG2024": "213403",
            "BIRTHS2020": "54238",
            "BIRTHS2021": "210696",
            "BIRTHS2022": "218804",
            "BIRTHS2023": "215717",
            "BIRTHS2024": "213754",
            "DEATHS2020": "78899",
            "DEATHS2021": "156759",
            "DEATHS2022": "153935",
            "DEATHS2023": "145659",
            "DEATHS2024": "141438",
            "NATURALCHG2020": "-24661",
            "NATURALCHG2021": "53937",
            "NATURALCHG2022": "64869",
            "NATURALCHG2023": "70058",
            "NATURALCHG2024": "72316",
            "INTERNATIONALMIG2020": "2041",
            "INTERNATIONALMIG2021": "36787",
            "INTERNATIONALMIG2022": "157722",
            "INTERNATIONALMIG2023": "237130",
            "INTERNATIONALMIG2024": "287993",
            "DOMESTICMIG2020": "-65242",
            "DOMESTICMIG2021": "-351348",
            "DOMESTICMIG2022": "-325460",
            "DOMESTICMIG2023": "-201223",
            "DOMESTICMIG2024": "-146888",
            "NETMIG2020": "-63201",
            "NETMIG2021": "-314561",
            "NETMIG2022": "-167738",
            "NETMIG2023": "35907",
            "NETMIG2024": "141105",
            "RESIDUAL2020": "-4442",
            "RESIDUAL2021": "-15888",
            "RESIDUAL2022": "8117",
            "RESIDUAL2023": "1062",
            "RESIDUAL2024": "-18"
          }
        },
        "original_source_archives": {
          "fars": {
            "manifest": {
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              "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.archive-manifest.json",
              "sha256": "cb9c413120d6e661e4173f740128cbf99ee54163c951a50a041dfa816ff3a79d"
            },
            "original_filename": "FARS2024NationalCSV.zip",
            "publisher": "National Highway Traffic Safety Administration",
            "publisher_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
            "bytes": 32672161,
            "sha256": "5112727a8c0dc91ffee27ca05bddb073934f2d192ce4fae997da767dccdbe04f",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-fars-part-001",
                "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.part-001.bin",
                "sha256": "bdbf3cfa60f0d4b5e45353eed975452cf9ffffc83b6d224a18841dc61baf3033",
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                "offset": 0,
                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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                "bytes": 12672161,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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          },
          "native_geometry": {
            "manifest": {
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              "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
              "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0"
            },
            "original_filename": "tl_2024_us_cbsa.zip",
            "publisher": "U.S. Census Bureau",
            "publisher_url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
            "bytes": 34959504,
            "sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-tiger-part-001",
                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-001.bin",
                "sha256": "593dd43be19c182f2de18bc1e2a4be7e987a0dc128ebbae233b5934d5f46358b",
                "order": 1,
                "offset": 0,
                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              },
              {
                "id": "road-2024-tiger-part-002",
                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-002.bin",
                "sha256": "6b72e011db8669ed0181c977c4edd5f60c4edef875366e1dae80386dc45653f1",
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                "offset": 20000000,
                "bytes": 14959504,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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            ]
          },
          "membership": {
            "id": "road-2024-membership",
            "url": "/data/source-frames/road-2024-census-list1_2023.xlsx",
            "sha256": "952c4b1e78acbb54e6ec9412434b7602fedacbf021736351a63c181bdb753629"
          },
          "population": {
            "id": "road-2024-population",
            "url": "/data/source-frames/road-2024-cbsa-est2024-alldata.csv",
            "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0"
          },
          "population_revision": {
            "id": "road-2024-population-revision",
            "url": "/data/source-frames/road-2024-cbsa-est2025-alldata.csv",
            "sha256": "bf6fad83753456413d047d1acebeb434bd067eba9d6d0be62b3f737ad1301852"
          }
        },
        "source_frames": {
          "county_membership_population": {
            "id": "road-2024-new-york-city-county-membership-population",
            "url": "/data/source-frames/road-2024-new-york-city-county-membership-population.json",
            "sha256": "31633b1f32e0c3c3e6d205574b0e3cde9ee99ab9786f575a1c5088111386e5f2"
          },
          "native_boundary": {
            "id": "road-2024-new-york-city-native-boundary",
            "url": "/data/source-frames/road-2024-new-york-city-native-boundary.json",
            "sha256": "59cb0ca28ee2f9ad542725ef808790b89558f5d5b88ef9babdf49f6c9d65c1b0"
          },
          "fatal_persons": {
            "id": "road-2024-new-york-city-fatal-persons",
            "url": "/data/source-frames/road-2024-new-york-city-fatal-persons.json",
            "sha256": "6c94c54ed2f1eb80b8a752b4fd1f6ef04d42354b51e42433fb0284e67393df0f"
          },
          "fatal_crashes": {
            "id": "road-2024-new-york-city-fatal-crashes",
            "url": "/data/source-frames/road-2024-new-york-city-fatal-crashes.json",
            "sha256": "7f1705fd6268820cfd927f5f9e7bf17970efa7c8233030188c110b0d9c710e3d"
          },
          "source_facts": {
            "id": "road-2024-source-facts",
            "url": "/data/source-frames/road-2024-source-facts.json",
            "sha256": "7adbc22337ddb08dca3cde2cfb994e57649a62fa28d3912acf322aad56403e39"
          }
        },
        "revision_sensitivity_only": {
          "kind": "later-population-vintage-comparison",
          "population_estimate_vintage": 2025,
          "population_reference_date": "2024-07-01",
          "midyear_resident_population": 20080087,
          "value": 4.427271654749305,
          "exact_rational": {
            "numerator": 88900000,
            "denominator": 20080087,
            "reduced_fraction": "88900000/20080087"
          },
          "notice": "Not primary. Uses Jan1 2025 non-MSA boundaries; identical OMB membership does not establish exact native geometry identity. Revision comparison, not CI, new input or preferred rate."
        },
        "coverage": {
          "county_membership_complete": true,
          "population_components_reconcile": true,
          "fatal_person_vs_crash_fatals_reconcile": true,
          "unknown_other_notreported_county_fatalities_in_constituent_states": 0,
          "unknown_injury_severity_is_not_imputed": true,
          "source_person_rows_in_region": 2095,
          "unknown_not_reported_injury_severity_persons_in_region": 52,
          "died_prior_to_crash_persons_not_counted_as_crash_fatalities": 0,
          "fatal_person_death_year_counts": {
            "2024": 886,
            "2025": 3
          },
          "fatal_crashes_with_out_of_range_or_missing_geocode": 25,
          "fatal_persons_in_crashes_with_out_of_range_or_missing_geocode": 26,
          "geocoded_crash_point_coverage_is_not_used_for_count_selection": true
        },
        "source_inventories": {
          "omb_county_relationships": 1915,
          "omb_tiger_cbsas": 935,
          "us_population_cbsas": 925,
          "puerto_rico_cbsas_absent_from_population": 10,
          "fars_scope": "50 US states and District of Columbia; acquired national file excludes Puerto Rico",
          "notice": "OMB/TIGER include10PuertoRico areas absent from both US population files; FARS PuertoRico code43 is not CensusFIPS72. No PuertoRico adapter/coverage claimed."
        },
        "method_qualification": {
          "territorial_not_resident_risk": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
          "ascertainment_and_provisional": "FARS2024 ARF is provisional; an administrative fatal-crash census does not establish complete ascertainment or zero uncertainty.",
          "unknown_dates_and_followup": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation.",
          "source_fatals_reconciliation": "Every crash FATALS equals joined INJ_SEV4 persons. FATALS is derived from that classification, so this checks extraction/joins, not independent ascertainment.",
          "geography_compatibility": "Complete OMB2023 membership and primary Vintage2024 components match. PrinceWilliam/Fairfax transfer is internal to DC MSA. Change inventories do not prove every polygon vertex unchanged; native geography is distinct from PM2015.",
          "population_revision": "Vintage2024 July2024 is primary. Vintage2025 July2024 uses Jan2025 other boundaries; codes do not prove identical geometry. Revision sensitivity is not CI, newinput or a favourable replacement.",
          "manual_provenance": "Primary NHTSA multipart PDFs were decoded with exact payload hashes. Analytical/coding SHA512 differs from unacquired ROSA mirror checksums; cause is unknown. Coding metadata retains a draft/revisions phrase. Pinned primary endpoints/index/title/report/year, not mirror equivalence, establish this version.",
          "manual_source_refs": [
            {
              "report_number": "813794",
              "title": "FARS Analytical User Manual1975–2024",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813794",
              "reviewed_payload_sha256": "1288a6ad80f51ce954cf53bb3d07bf70bfc4910fb18cb877a5739a163595d1ad",
              "pdf_pages": [
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                10
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            },
            {
              "report_number": "813791",
              "title": "2024 FARS Overview, ARF/final cycle",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813791",
              "reviewed_payload_sha256": "cae507854dfe5be1eb18cd6b97ffd1ec137350eccd32cb979ef41bbe938ea408",
              "pdf_pages": [
                14
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": null
            },
            {
              "report_number": "813798",
              "title": "FARS/CRSS2024 Coding and Validation Manual",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813798",
              "reviewed_payload_sha256": "c9bbf7040939ab60c9663f3e0b7fb4bc5c2b9be4d6bafb5b59464800c921610a",
              "pdf_pages": [
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              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            }
          ],
          "geographic_change_review": {
            "id": "road-2024-geographic-change-review",
            "url": "/data/source-frames/road-2024-geographic-change-review.json",
            "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
          },
          "rights_review": {
            "id": "road-2024-rights",
            "url": "/data/source-frames/road-2024-rights-review.json",
            "sha256": "b555236b9483e4dc1b626debbda65c8d126062a63a5ac293aa0d63c5650982e3"
          },
          "independent_audit": {
            "id": "road-2024-independent-proof",
            "url": "/data/source-frames/road-2024-independent-proof.json",
            "sha256": "3cbfd334d95ca7ac065f51dbd08266e52db17015190ae1dfa70b0ed7f59adefb"
          },
          "initial_scope_decision": {
            "id": "road-2024-initial-scope-decision",
            "url": "/data/source-frames/road-2024-initial-scope-decision.json",
            "sha256": "87d49103c915bb4ee636b0fb94921440ec7343313986ad0d8390a607465fd2fc"
          }
        },
        "source_licences": {
          "fatalities": {
            "name": "NHTSA public U.S. Government information; distribution/copying permitted",
            "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
            "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
            "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
            "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
          },
          "population_and_membership": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          },
          "native_geometry": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          }
        }
      },
      "quality_flags": [
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          "code": "provisional-arf",
          "label": "Provisional ARF",
          "meaning": "2024 Annual Report File (ARF), provisional and subject to finalization"
        },
        {
          "code": "territorial-source-count",
          "label": "Territorial, not resident risk",
          "meaning": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents."
        },
        {
          "code": "unknowns-retained",
          "label": "Source unknowns preserved",
          "meaning": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation."
        }
      ],
      "uncertainty": {
        "status": "not-provided",
        "standard_error": null,
        "confidence_interval": null,
        "note": "Administrative fatal-crash census and resident population estimates; unknown case ascertainment/ARF revisions and population estimate error are not zero uncertainty."
      },
      "licence": {
        "name": "NHTSA public U.S. Government information; distribution/copying permitted",
        "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
        "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
        "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
        "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
      },
      "source_attribution": [
        {
          "publisher": "NHTSA",
          "title": "2024 FARS ARF",
          "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
          "licence": "NHTSA public U.S. Government information; distribution/copying permitted"
        },
        {
          "publisher": "U.S. Census Bureau",
          "title": "Vintage2024 / OMB2023 / TIGER2024",
          "url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
          "licence": "U.S. Census Bureau federal factual data and native statistical boundaries"
        }
      ],
      "evidence_id": "road-2024-omb2023-new-york-city",
      "city_name": "New York City",
      "source_area_id": "35620",
      "source_area_name": "New York-Newark-Jersey City, NY-NJ",
      "review_status": "accepted",
      "frame": {
        "url": "/data/source-frames/road-2024-new-york-city-county-membership-population.json",
        "sha256": "31633b1f32e0c3c3e6d205574b0e3cde9ee99ab9786f575a1c5088111386e5f2"
      },
      "numerator_person_fatalities": 889,
      "fatal_crashes_not_numerator": 839,
      "midyear_resident_population": 19940274,
      "population_reference_date": "2024-07-01",
      "population_estimate_vintage": 2024
    },
    {
      "city_slug": "san-francisco",
      "value": 5.485657050489127,
      "unit": "per 100000",
      "period_start": "2024-01-01",
      "period_end": "2024-12-31",
      "source_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
      "geography_type": "harmonized-urban-area",
      "geography_ref": "census-tiger2024-road-v1-0:san-francisco",
      "protocol_ref": "civometra.road-deaths.measurement@1.0.0",
      "source_record_ref": "FARS2024 person.csv INJ_SEV4; STATE/ST_CASE joins and complete OMB2023 MSA 41860 counties; original rows linked in derivation.",
      "universe": "All source-classified fatal persons in qualifying motor-vehicle-in-transport traffic crashes on trafficways customarily open to public access within a reviewed functional urban region, irrespective of victim residence or victim mode. The source classification requires death immediately or within 30 days (720 hours) of the qualifying crash. The denominator is the same region's usual-resident midyear population for the crash year. This is a territorial source count scaled by residents, not resident travel-risk probability. Nonmotor-only events and a broader nonmotor-inclusive road-death total are outside the adopted construct. Every future country source requires independent evidence of this event scope and region/population compatibility or an exact separately reviewed bridge.",
      "denominator": 4648486,
      "publisher": "BestCityToLive / AINT.app, derived from NHTSA and U.S. Census Bureau",
      "source_label": "Provisional2024 FARS motor-vehicle traffic fatal persons / Vintage2024 residents",
      "geography": "San Francisco-Oakland-Fremont, CA · OMB2023 MSA / Jan2024 native boundaries",
      "definition_version": "1.0.0",
      "analytical_area_id": "us-omb2023-cbsa:41860",
      "boundary_label": "San Francisco-Oakland-Fremont, CA · OMB2023 MSA / Jan2024 native boundaries",
      "boundary_reference_year": 2024,
      "population_reference_year": 2024,
      "calculation_method": "100000 * source-classified fatal persons in qualifying motor-vehicle-in-transport public-access trafficway crashes occurring within the complete reviewed functional urban region during a calendar crash year / that region's usual-resident midyear population for the same year. Count persons, not fatal crashes; allocate by crash year, not death year. Retain source-classified qualifying cross-year/unknown death dates and cases with missing geocodes; never select only geocoded cases, impute unknown severity, claim unobserved individual follow-up intervals, or substitute resident deaths occurring elsewhere.",
      "scope_notice": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
      "derivation": {
        "kind": "territorial-fatal-persons-per-midyear-residents",
        "calculation": "100000 * source INJ_SEV4 fatal persons selected by complete MSA STATE+COUNTY membership / original July1 2024 MSA residents from Vintage2024. Count people, not crashes; use crash year2024, not death year. Retain qualifying cross-year/unknown death dates and missing geocodes; no unknown-severity imputation or favourable population-vintage selection.",
        "scale": 100000,
        "numerator_person_fatalities": 255,
        "fatal_crashes_not_numerator": 237,
        "midyear_resident_population": 4648486,
        "population_reference_date": "2024-07-01",
        "population_estimate_vintage": 2024,
        "calendar_period": {
          "year": 2024,
          "start": "2024-01-01",
          "end": "2024-12-31"
        },
        "exact_rational": {
          "numerator": 25500000,
          "denominator": 4648486,
          "reduced_fraction": "12750000/2324243"
        },
        "source_victim_selector": {
          "file": "person.csv",
          "field": "INJ_SEV",
          "equals": "4",
          "label": "Fatal Injury (K)"
        },
        "location_selector": "Person STATE+COUNTY, independently equal to joined accident STATE+COUNTY; exact OMB county membership",
        "fatal_person_identity": [
          "STATE",
          "ST_CASE",
          "VEH_NO",
          "PER_NO"
        ],
        "crash_identity": [
          "STATE",
          "ST_CASE"
        ],
        "source_classification": {
          "motor_vehicle_in_transport_required": true,
          "death_followup_days": 30,
          "maximum_followup_hours": 720,
          "trafficway_basis": "customarily-open-to-public",
          "time_allocation": "crash-year",
          "fatal_injury_code": "4",
          "prior_death_code": "6",
          "unknown_injury_code": "9",
          "individual_death_timestamps_complete": false,
          "independent_720h_verification": false,
          "release_status": "2024 Annual Report File (ARF), provisional and subject to finalization",
          "intentional_event_rule": "Manual813798 page521: suicide-only cases are not coded; when other fatalities occur, the suicide victim is severity6 or0, not4. Prior-to-crash severity6 and unknown9 are not added.",
          "notice": "FARS requires a motor vehicle in transport and source-classified fatal injury within30days/720hours on a trafficway customarily open to the public. That is access, not legal road ownership or blanket public-parking coverage. Incomplete individual timestamps remain unknown; no independent720hour verification is claimed."
        },
        "source_geography": {
          "native_cbsa_code": "41860",
          "native_geoidfq": "310M700US41860",
          "source_area_name": "San Francisco-Oakland-Fremont, CA",
          "membership_edition": "OMB July2023, 2020 standards",
          "native_boundary_product": "TIGER/Line2024",
          "native_boundary_reference_date": "2024-01-01",
          "native_crs": "EPSG:4269",
          "native_record_number": 235,
          "county_count": 5,
          "county_fips": [
            "06001",
            "06013",
            "06041",
            "06075",
            "06081"
          ],
          "point_adapter": {
            "source_crs": "EPSG:4326",
            "target_crs": "EPSG:4269",
            "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
            "definition": "proj=noop ellps=GRS80",
            "accuracy_m": 4,
            "is_ballpark": false,
            "coordinate_epoch": null,
            "input_point": [
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            ],
            "transformed_point": [
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            ],
            "native_matches": [
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            ],
            "diagnostic_distance_to_external_boundary_m": 14220.719993068731,
            "distance_notice": "Approximate diagnostic interior distance on source NAD83 geometry; no measured geospatial accuracy is claimed.",
            "qualification": "EPSG operation represents WGS84/NAD83 agreement at stated4m accuracy; its no-op pipeline is not a claim of exact datum identity or survey accuracy.",
            "proof": {
              "id": "road-2024-geometry-proof",
              "url": "/data/source-frames/road-2024-geometry-source-proof.json",
              "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6"
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        },
        "original_population_record": {
          "filename": "cbsa-est2024-alldata.csv",
          "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0",
          "csv_row_1based": 1319,
          "source_field": "POPESTIMATE2024",
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            "CBSA": "41860",
            "MDIV": "",
            "STCOU": "",
            "NAME": "San Francisco-Oakland-Fremont, CA",
            "LSAD": "Metropolitan Statistical Area",
            "ESTIMATESBASE2020": "4753655",
            "POPESTIMATE2020": "4745673",
            "POPESTIMATE2021": "4621751",
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            "NPOPCHG2020": "-7982",
            "NPOPCHG2021": "-123922",
            "NPOPCHG2022": "-21958",
            "NPOPCHG2023": "9652",
            "NPOPCHG2024": "39041",
            "BIRTHS2020": "11802",
            "BIRTHS2021": "45657",
            "BIRTHS2022": "46095",
            "BIRTHS2023": "44037",
            "BIRTHS2024": "43208",
            "DEATHS2020": "8352",
            "DEATHS2021": "35445",
            "DEATHS2022": "33691",
            "DEATHS2023": "33179",
            "DEATHS2024": "32039",
            "NATURALCHG2020": "3450",
            "NATURALCHG2021": "10212",
            "NATURALCHG2022": "12404",
            "NATURALCHG2023": "10858",
            "NATURALCHG2024": "11169",
            "INTERNATIONALMIG2020": "478",
            "INTERNATIONALMIG2021": "10054",
            "INTERNATIONALMIG2022": "45782",
            "INTERNATIONALMIG2023": "55387",
            "INTERNATIONALMIG2024": "67708",
            "DOMESTICMIG2020": "-11891",
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            "DOMESTICMIG2022": "-81403",
            "DOMESTICMIG2023": "-56942",
            "DOMESTICMIG2024": "-39938",
            "NETMIG2020": "-11413",
            "NETMIG2021": "-126409",
            "NETMIG2022": "-35621",
            "NETMIG2023": "-1555",
            "NETMIG2024": "27770",
            "RESIDUAL2020": "-19",
            "RESIDUAL2021": "-7725",
            "RESIDUAL2022": "1259",
            "RESIDUAL2023": "349",
            "RESIDUAL2024": "102"
          }
        },
        "original_source_archives": {
          "fars": {
            "manifest": {
              "id": "road-2024-fars-archive-manifest",
              "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.archive-manifest.json",
              "sha256": "cb9c413120d6e661e4173f740128cbf99ee54163c951a50a041dfa816ff3a79d"
            },
            "original_filename": "FARS2024NationalCSV.zip",
            "publisher": "National Highway Traffic Safety Administration",
            "publisher_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
            "bytes": 32672161,
            "sha256": "5112727a8c0dc91ffee27ca05bddb073934f2d192ce4fae997da767dccdbe04f",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
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                "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.part-001.bin",
                "sha256": "bdbf3cfa60f0d4b5e45353eed975452cf9ffffc83b6d224a18841dc61baf3033",
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                "content_type": "application/octet-stream",
                "standalone_zip": false
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                "content_type": "application/octet-stream",
                "standalone_zip": false
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          "native_geometry": {
            "manifest": {
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              "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
              "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0"
            },
            "original_filename": "tl_2024_us_cbsa.zip",
            "publisher": "U.S. Census Bureau",
            "publisher_url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
            "bytes": 34959504,
            "sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-tiger-part-001",
                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-001.bin",
                "sha256": "593dd43be19c182f2de18bc1e2a4be7e987a0dc128ebbae233b5934d5f46358b",
                "order": 1,
                "offset": 0,
                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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              {
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                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-002.bin",
                "sha256": "6b72e011db8669ed0181c977c4edd5f60c4edef875366e1dae80386dc45653f1",
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                "offset": 20000000,
                "bytes": 14959504,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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            ]
          },
          "membership": {
            "id": "road-2024-membership",
            "url": "/data/source-frames/road-2024-census-list1_2023.xlsx",
            "sha256": "952c4b1e78acbb54e6ec9412434b7602fedacbf021736351a63c181bdb753629"
          },
          "population": {
            "id": "road-2024-population",
            "url": "/data/source-frames/road-2024-cbsa-est2024-alldata.csv",
            "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0"
          },
          "population_revision": {
            "id": "road-2024-population-revision",
            "url": "/data/source-frames/road-2024-cbsa-est2025-alldata.csv",
            "sha256": "bf6fad83753456413d047d1acebeb434bd067eba9d6d0be62b3f737ad1301852"
          }
        },
        "source_frames": {
          "county_membership_population": {
            "id": "road-2024-san-francisco-county-membership-population",
            "url": "/data/source-frames/road-2024-san-francisco-county-membership-population.json",
            "sha256": "5f1c8125cd93e38e1ddd28130e0fb40cb3db0e16c1bdfc597d97f6c8da375630"
          },
          "native_boundary": {
            "id": "road-2024-san-francisco-native-boundary",
            "url": "/data/source-frames/road-2024-san-francisco-native-boundary.json",
            "sha256": "8df2af4146e0f820b57ce300d2678ac82f90eb3da8342dcd721768b8d378d7b6"
          },
          "fatal_persons": {
            "id": "road-2024-san-francisco-fatal-persons",
            "url": "/data/source-frames/road-2024-san-francisco-fatal-persons.json",
            "sha256": "aabbfc5b855a3c1352e0ccb2877220f267ff29b0262873335d7fa5a60f111803"
          },
          "fatal_crashes": {
            "id": "road-2024-san-francisco-fatal-crashes",
            "url": "/data/source-frames/road-2024-san-francisco-fatal-crashes.json",
            "sha256": "ec4abeadaa46c6dc8acfab53983023407599dcb7b54d0b454333453f2f83cae9"
          },
          "source_facts": {
            "id": "road-2024-source-facts",
            "url": "/data/source-frames/road-2024-source-facts.json",
            "sha256": "7adbc22337ddb08dca3cde2cfb994e57649a62fa28d3912acf322aad56403e39"
          }
        },
        "revision_sensitivity_only": {
          "kind": "later-population-vintage-comparison",
          "population_estimate_vintage": 2025,
          "population_reference_date": "2024-07-01",
          "midyear_resident_population": 4623434,
          "value": 5.5153809917044345,
          "exact_rational": {
            "numerator": 25500000,
            "denominator": 4623434,
            "reduced_fraction": "12750000/2311717"
          },
          "notice": "Not primary. Uses Jan1 2025 non-MSA boundaries; identical OMB membership does not establish exact native geometry identity. Revision comparison, not CI, new input or preferred rate."
        },
        "coverage": {
          "county_membership_complete": true,
          "population_components_reconcile": true,
          "fatal_person_vs_crash_fatals_reconcile": true,
          "unknown_other_notreported_county_fatalities_in_constituent_states": 0,
          "unknown_injury_severity_is_not_imputed": true,
          "source_person_rows_in_region": 545,
          "unknown_not_reported_injury_severity_persons_in_region": 18,
          "died_prior_to_crash_persons_not_counted_as_crash_fatalities": 0,
          "fatal_person_death_year_counts": {
            "2024": 247,
            "9999": 8
          },
          "fatal_crashes_with_out_of_range_or_missing_geocode": 0,
          "fatal_persons_in_crashes_with_out_of_range_or_missing_geocode": 0,
          "geocoded_crash_point_coverage_is_not_used_for_count_selection": true
        },
        "source_inventories": {
          "omb_county_relationships": 1915,
          "omb_tiger_cbsas": 935,
          "us_population_cbsas": 925,
          "puerto_rico_cbsas_absent_from_population": 10,
          "fars_scope": "50 US states and District of Columbia; acquired national file excludes Puerto Rico",
          "notice": "OMB/TIGER include10PuertoRico areas absent from both US population files; FARS PuertoRico code43 is not CensusFIPS72. No PuertoRico adapter/coverage claimed."
        },
        "method_qualification": {
          "territorial_not_resident_risk": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
          "ascertainment_and_provisional": "FARS2024 ARF is provisional; an administrative fatal-crash census does not establish complete ascertainment or zero uncertainty.",
          "unknown_dates_and_followup": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation.",
          "source_fatals_reconciliation": "Every crash FATALS equals joined INJ_SEV4 persons. FATALS is derived from that classification, so this checks extraction/joins, not independent ascertainment.",
          "geography_compatibility": "Complete OMB2023 membership and primary Vintage2024 components match. PrinceWilliam/Fairfax transfer is internal to DC MSA. Change inventories do not prove every polygon vertex unchanged; native geography is distinct from PM2015.",
          "population_revision": "Vintage2024 July2024 is primary. Vintage2025 July2024 uses Jan2025 other boundaries; codes do not prove identical geometry. Revision sensitivity is not CI, newinput or a favourable replacement.",
          "manual_provenance": "Primary NHTSA multipart PDFs were decoded with exact payload hashes. Analytical/coding SHA512 differs from unacquired ROSA mirror checksums; cause is unknown. Coding metadata retains a draft/revisions phrase. Pinned primary endpoints/index/title/report/year, not mirror equivalence, establish this version.",
          "manual_source_refs": [
            {
              "report_number": "813794",
              "title": "FARS Analytical User Manual1975–2024",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813794",
              "reviewed_payload_sha256": "1288a6ad80f51ce954cf53bb3d07bf70bfc4910fb18cb877a5739a163595d1ad",
              "pdf_pages": [
                6,
                10
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            },
            {
              "report_number": "813791",
              "title": "2024 FARS Overview, ARF/final cycle",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813791",
              "reviewed_payload_sha256": "cae507854dfe5be1eb18cd6b97ffd1ec137350eccd32cb979ef41bbe938ea408",
              "pdf_pages": [
                14
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": null
            },
            {
              "report_number": "813798",
              "title": "FARS/CRSS2024 Coding and Validation Manual",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813798",
              "reviewed_payload_sha256": "c9bbf7040939ab60c9663f3e0b7fb4bc5c2b9be4d6bafb5b59464800c921610a",
              "pdf_pages": [
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              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            }
          ],
          "geographic_change_review": {
            "id": "road-2024-geographic-change-review",
            "url": "/data/source-frames/road-2024-geographic-change-review.json",
            "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
          },
          "rights_review": {
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            "url": "/data/source-frames/road-2024-rights-review.json",
            "sha256": "b555236b9483e4dc1b626debbda65c8d126062a63a5ac293aa0d63c5650982e3"
          },
          "independent_audit": {
            "id": "road-2024-independent-proof",
            "url": "/data/source-frames/road-2024-independent-proof.json",
            "sha256": "3cbfd334d95ca7ac065f51dbd08266e52db17015190ae1dfa70b0ed7f59adefb"
          },
          "initial_scope_decision": {
            "id": "road-2024-initial-scope-decision",
            "url": "/data/source-frames/road-2024-initial-scope-decision.json",
            "sha256": "87d49103c915bb4ee636b0fb94921440ec7343313986ad0d8390a607465fd2fc"
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        },
        "source_licences": {
          "fatalities": {
            "name": "NHTSA public U.S. Government information; distribution/copying permitted",
            "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
            "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
            "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
            "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
          },
          "population_and_membership": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          },
          "native_geometry": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          }
        }
      },
      "quality_flags": [
        {
          "code": "provisional-arf",
          "label": "Provisional ARF",
          "meaning": "2024 Annual Report File (ARF), provisional and subject to finalization"
        },
        {
          "code": "territorial-source-count",
          "label": "Territorial, not resident risk",
          "meaning": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents."
        },
        {
          "code": "unknowns-retained",
          "label": "Source unknowns preserved",
          "meaning": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation."
        }
      ],
      "uncertainty": {
        "status": "not-provided",
        "standard_error": null,
        "confidence_interval": null,
        "note": "Administrative fatal-crash census and resident population estimates; unknown case ascertainment/ARF revisions and population estimate error are not zero uncertainty."
      },
      "licence": {
        "name": "NHTSA public U.S. Government information; distribution/copying permitted",
        "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
        "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
        "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
        "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
      },
      "source_attribution": [
        {
          "publisher": "NHTSA",
          "title": "2024 FARS ARF",
          "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
          "licence": "NHTSA public U.S. Government information; distribution/copying permitted"
        },
        {
          "publisher": "U.S. Census Bureau",
          "title": "Vintage2024 / OMB2023 / TIGER2024",
          "url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
          "licence": "U.S. Census Bureau federal factual data and native statistical boundaries"
        }
      ],
      "evidence_id": "road-2024-omb2023-san-francisco",
      "city_name": "San Francisco",
      "source_area_id": "41860",
      "source_area_name": "San Francisco-Oakland-Fremont, CA",
      "review_status": "accepted",
      "frame": {
        "url": "/data/source-frames/road-2024-san-francisco-county-membership-population.json",
        "sha256": "5f1c8125cd93e38e1ddd28130e0fb40cb3db0e16c1bdfc597d97f6c8da375630"
      },
      "numerator_person_fatalities": 255,
      "fatal_crashes_not_numerator": 237,
      "midyear_resident_population": 4648486,
      "population_reference_date": "2024-07-01",
      "population_estimate_vintage": 2024
    },
    {
      "city_slug": "los-angeles",
      "value": 7.557465747352914,
      "unit": "per 100000",
      "period_start": "2024-01-01",
      "period_end": "2024-12-31",
      "source_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
      "geography_type": "harmonized-urban-area",
      "geography_ref": "census-tiger2024-road-v1-0:los-angeles",
      "protocol_ref": "civometra.road-deaths.measurement@1.0.0",
      "source_record_ref": "FARS2024 person.csv INJ_SEV4; STATE/ST_CASE joins and complete OMB2023 MSA 31080 counties; original rows linked in derivation.",
      "universe": "All source-classified fatal persons in qualifying motor-vehicle-in-transport traffic crashes on trafficways customarily open to public access within a reviewed functional urban region, irrespective of victim residence or victim mode. The source classification requires death immediately or within 30 days (720 hours) of the qualifying crash. The denominator is the same region's usual-resident midyear population for the crash year. This is a territorial source count scaled by residents, not resident travel-risk probability. Nonmotor-only events and a broader nonmotor-inclusive road-death total are outside the adopted construct. Every future country source requires independent evidence of this event scope and region/population compatibility or an exact separately reviewed bridge.",
      "denominator": 12927614,
      "publisher": "BestCityToLive / AINT.app, derived from NHTSA and U.S. Census Bureau",
      "source_label": "Provisional2024 FARS motor-vehicle traffic fatal persons / Vintage2024 residents",
      "geography": "Los Angeles-Long Beach-Anaheim, CA · OMB2023 MSA / Jan2024 native boundaries",
      "definition_version": "1.0.0",
      "analytical_area_id": "us-omb2023-cbsa:31080",
      "boundary_label": "Los Angeles-Long Beach-Anaheim, CA · OMB2023 MSA / Jan2024 native boundaries",
      "boundary_reference_year": 2024,
      "population_reference_year": 2024,
      "calculation_method": "100000 * source-classified fatal persons in qualifying motor-vehicle-in-transport public-access trafficway crashes occurring within the complete reviewed functional urban region during a calendar crash year / that region's usual-resident midyear population for the same year. Count persons, not fatal crashes; allocate by crash year, not death year. Retain source-classified qualifying cross-year/unknown death dates and cases with missing geocodes; never select only geocoded cases, impute unknown severity, claim unobserved individual follow-up intervals, or substitute resident deaths occurring elsewhere.",
      "scope_notice": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
      "derivation": {
        "kind": "territorial-fatal-persons-per-midyear-residents",
        "calculation": "100000 * source INJ_SEV4 fatal persons selected by complete MSA STATE+COUNTY membership / original July1 2024 MSA residents from Vintage2024. Count people, not crashes; use crash year2024, not death year. Retain qualifying cross-year/unknown death dates and missing geocodes; no unknown-severity imputation or favourable population-vintage selection.",
        "scale": 100000,
        "numerator_person_fatalities": 977,
        "fatal_crashes_not_numerator": 920,
        "midyear_resident_population": 12927614,
        "population_reference_date": "2024-07-01",
        "population_estimate_vintage": 2024,
        "calendar_period": {
          "year": 2024,
          "start": "2024-01-01",
          "end": "2024-12-31"
        },
        "exact_rational": {
          "numerator": 97700000,
          "denominator": 12927614,
          "reduced_fraction": "48850000/6463807"
        },
        "source_victim_selector": {
          "file": "person.csv",
          "field": "INJ_SEV",
          "equals": "4",
          "label": "Fatal Injury (K)"
        },
        "location_selector": "Person STATE+COUNTY, independently equal to joined accident STATE+COUNTY; exact OMB county membership",
        "fatal_person_identity": [
          "STATE",
          "ST_CASE",
          "VEH_NO",
          "PER_NO"
        ],
        "crash_identity": [
          "STATE",
          "ST_CASE"
        ],
        "source_classification": {
          "motor_vehicle_in_transport_required": true,
          "death_followup_days": 30,
          "maximum_followup_hours": 720,
          "trafficway_basis": "customarily-open-to-public",
          "time_allocation": "crash-year",
          "fatal_injury_code": "4",
          "prior_death_code": "6",
          "unknown_injury_code": "9",
          "individual_death_timestamps_complete": false,
          "independent_720h_verification": false,
          "release_status": "2024 Annual Report File (ARF), provisional and subject to finalization",
          "intentional_event_rule": "Manual813798 page521: suicide-only cases are not coded; when other fatalities occur, the suicide victim is severity6 or0, not4. Prior-to-crash severity6 and unknown9 are not added.",
          "notice": "FARS requires a motor vehicle in transport and source-classified fatal injury within30days/720hours on a trafficway customarily open to the public. That is access, not legal road ownership or blanket public-parking coverage. Incomplete individual timestamps remain unknown; no independent720hour verification is claimed."
        },
        "source_geography": {
          "native_cbsa_code": "31080",
          "native_geoidfq": "310M700US31080",
          "source_area_name": "Los Angeles-Long Beach-Anaheim, CA",
          "membership_edition": "OMB July2023, 2020 standards",
          "native_boundary_product": "TIGER/Line2024",
          "native_boundary_reference_date": "2024-01-01",
          "native_crs": "EPSG:4269",
          "native_record_number": 732,
          "county_count": 2,
          "county_fips": [
            "06037",
            "06059"
          ],
          "point_adapter": {
            "source_crs": "EPSG:4326",
            "target_crs": "EPSG:4269",
            "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
            "definition": "proj=noop ellps=GRS80",
            "accuracy_m": 4,
            "is_ballpark": false,
            "coordinate_epoch": null,
            "input_point": [
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              34.0522
            ],
            "transformed_point": [
              -118.2437,
              34.0522
            ],
            "native_matches": [
              "31080"
            ],
            "diagnostic_distance_to_external_boundary_m": 27733.135975618974,
            "distance_notice": "Approximate diagnostic interior distance on source NAD83 geometry; no measured geospatial accuracy is claimed.",
            "qualification": "EPSG operation represents WGS84/NAD83 agreement at stated4m accuracy; its no-op pipeline is not a claim of exact datum identity or survey accuracy.",
            "proof": {
              "id": "road-2024-geometry-proof",
              "url": "/data/source-frames/road-2024-geometry-source-proof.json",
              "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6"
            }
          }
        },
        "original_population_record": {
          "filename": "cbsa-est2024-alldata.csv",
          "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0",
          "csv_row_1based": 862,
          "source_field": "POPESTIMATE2024",
          "raw_source_record": {
            "CBSA": "31080",
            "MDIV": "",
            "STCOU": "",
            "NAME": "Los Angeles-Long Beach-Anaheim, CA",
            "LSAD": "Metropolitan Statistical Area",
            "ESTIMATESBASE2020": "13204657",
            "POPESTIMATE2020": "13182895",
            "POPESTIMATE2021": "12968590",
            "POPESTIMATE2022": "12906936",
            "POPESTIMATE2023": "12886400",
            "POPESTIMATE2024": "12927614",
            "NPOPCHG2020": "-21762",
            "NPOPCHG2021": "-214305",
            "NPOPCHG2022": "-61654",
            "NPOPCHG2023": "-20536",
            "NPOPCHG2024": "41214",
            "BIRTHS2020": "31399",
            "BIRTHS2021": "124588",
            "BIRTHS2022": "127597",
            "BIRTHS2023": "125847",
            "BIRTHS2024": "124244",
            "DEATHS2020": "25220",
            "DEATHS2021": "115341",
            "DEATHS2022": "98870",
            "DEATHS2023": "95838",
            "DEATHS2024": "90857",
            "NATURALCHG2020": "6179",
            "NATURALCHG2021": "9247",
            "NATURALCHG2022": "28727",
            "NATURALCHG2023": "30009",
            "NATURALCHG2024": "33387",
            "INTERNATIONALMIG2020": "233",
            "INTERNATIONALMIG2021": "15944",
            "INTERNATIONALMIG2022": "83694",
            "INTERNATIONALMIG2023": "105058",
            "INTERNATIONALMIG2024": "130009",
            "DOMESTICMIG2020": "-29264",
            "DOMESTICMIG2021": "-232171",
            "DOMESTICMIG2022": "-173616",
            "DOMESTICMIG2023": "-156690",
            "DOMESTICMIG2024": "-122349",
            "NETMIG2020": "-29031",
            "NETMIG2021": "-216227",
            "NETMIG2022": "-89922",
            "NETMIG2023": "-51632",
            "NETMIG2024": "7660",
            "RESIDUAL2020": "1090",
            "RESIDUAL2021": "-7325",
            "RESIDUAL2022": "-459",
            "RESIDUAL2023": "1087",
            "RESIDUAL2024": "167"
          }
        },
        "original_source_archives": {
          "fars": {
            "manifest": {
              "id": "road-2024-fars-archive-manifest",
              "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.archive-manifest.json",
              "sha256": "cb9c413120d6e661e4173f740128cbf99ee54163c951a50a041dfa816ff3a79d"
            },
            "original_filename": "FARS2024NationalCSV.zip",
            "publisher": "National Highway Traffic Safety Administration",
            "publisher_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
            "bytes": 32672161,
            "sha256": "5112727a8c0dc91ffee27ca05bddb073934f2d192ce4fae997da767dccdbe04f",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-fars-part-001",
                "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.part-001.bin",
                "sha256": "bdbf3cfa60f0d4b5e45353eed975452cf9ffffc83b6d224a18841dc61baf3033",
                "order": 1,
                "offset": 0,
                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              },
              {
                "id": "road-2024-fars-part-002",
                "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.part-002.bin",
                "sha256": "f796ce0929224ddbc5594087919b350c14ea77fa9ea5f91c8f0e9a3a5ee4db73",
                "order": 2,
                "offset": 20000000,
                "bytes": 12672161,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              }
            ]
          },
          "native_geometry": {
            "manifest": {
              "id": "road-2024-tiger-archive-manifest",
              "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
              "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0"
            },
            "original_filename": "tl_2024_us_cbsa.zip",
            "publisher": "U.S. Census Bureau",
            "publisher_url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
            "bytes": 34959504,
            "sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-tiger-part-001",
                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-001.bin",
                "sha256": "593dd43be19c182f2de18bc1e2a4be7e987a0dc128ebbae233b5934d5f46358b",
                "order": 1,
                "offset": 0,
                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              },
              {
                "id": "road-2024-tiger-part-002",
                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-002.bin",
                "sha256": "6b72e011db8669ed0181c977c4edd5f60c4edef875366e1dae80386dc45653f1",
                "order": 2,
                "offset": 20000000,
                "bytes": 14959504,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              }
            ]
          },
          "membership": {
            "id": "road-2024-membership",
            "url": "/data/source-frames/road-2024-census-list1_2023.xlsx",
            "sha256": "952c4b1e78acbb54e6ec9412434b7602fedacbf021736351a63c181bdb753629"
          },
          "population": {
            "id": "road-2024-population",
            "url": "/data/source-frames/road-2024-cbsa-est2024-alldata.csv",
            "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0"
          },
          "population_revision": {
            "id": "road-2024-population-revision",
            "url": "/data/source-frames/road-2024-cbsa-est2025-alldata.csv",
            "sha256": "bf6fad83753456413d047d1acebeb434bd067eba9d6d0be62b3f737ad1301852"
          }
        },
        "source_frames": {
          "county_membership_population": {
            "id": "road-2024-los-angeles-county-membership-population",
            "url": "/data/source-frames/road-2024-los-angeles-county-membership-population.json",
            "sha256": "04a148d8ac28e2cd9bdefd5eb002ec7ab1f9e4a6d9f72f88e2377c34bce27853"
          },
          "native_boundary": {
            "id": "road-2024-los-angeles-native-boundary",
            "url": "/data/source-frames/road-2024-los-angeles-native-boundary.json",
            "sha256": "4da9aac198b5262bb6084c71ff92049594d92b556af857c3ddabe6f753fe3cef"
          },
          "fatal_persons": {
            "id": "road-2024-los-angeles-fatal-persons",
            "url": "/data/source-frames/road-2024-los-angeles-fatal-persons.json",
            "sha256": "ca063264289074e73e4ff8c3a151512b152dabb7d92d83f16699ba946449350b"
          },
          "fatal_crashes": {
            "id": "road-2024-los-angeles-fatal-crashes",
            "url": "/data/source-frames/road-2024-los-angeles-fatal-crashes.json",
            "sha256": "bec2d9d7e20272bdd828cec8290f5d2c3088adc0f45e5b53da067f32991893b6"
          },
          "source_facts": {
            "id": "road-2024-source-facts",
            "url": "/data/source-frames/road-2024-source-facts.json",
            "sha256": "7adbc22337ddb08dca3cde2cfb994e57649a62fa28d3912acf322aad56403e39"
          }
        },
        "revision_sensitivity_only": {
          "kind": "later-population-vintage-comparison",
          "population_estimate_vintage": 2025,
          "population_reference_date": "2024-07-01",
          "midyear_resident_population": 12906895,
          "value": 7.569597490333655,
          "exact_rational": {
            "numerator": 97700000,
            "denominator": 12906895,
            "reduced_fraction": "19540000/2581379"
          },
          "notice": "Not primary. Uses Jan1 2025 non-MSA boundaries; identical OMB membership does not establish exact native geometry identity. Revision comparison, not CI, new input or preferred rate."
        },
        "coverage": {
          "county_membership_complete": true,
          "population_components_reconcile": true,
          "fatal_person_vs_crash_fatals_reconcile": true,
          "unknown_other_notreported_county_fatalities_in_constituent_states": 0,
          "unknown_injury_severity_is_not_imputed": true,
          "source_person_rows_in_region": 2391,
          "unknown_not_reported_injury_severity_persons_in_region": 88,
          "died_prior_to_crash_persons_not_counted_as_crash_fatalities": 0,
          "fatal_person_death_year_counts": {
            "2024": 958,
            "2025": 1,
            "9999": 18
          },
          "fatal_crashes_with_out_of_range_or_missing_geocode": 1,
          "fatal_persons_in_crashes_with_out_of_range_or_missing_geocode": 1,
          "geocoded_crash_point_coverage_is_not_used_for_count_selection": true
        },
        "source_inventories": {
          "omb_county_relationships": 1915,
          "omb_tiger_cbsas": 935,
          "us_population_cbsas": 925,
          "puerto_rico_cbsas_absent_from_population": 10,
          "fars_scope": "50 US states and District of Columbia; acquired national file excludes Puerto Rico",
          "notice": "OMB/TIGER include10PuertoRico areas absent from both US population files; FARS PuertoRico code43 is not CensusFIPS72. No PuertoRico adapter/coverage claimed."
        },
        "method_qualification": {
          "territorial_not_resident_risk": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
          "ascertainment_and_provisional": "FARS2024 ARF is provisional; an administrative fatal-crash census does not establish complete ascertainment or zero uncertainty.",
          "unknown_dates_and_followup": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation.",
          "source_fatals_reconciliation": "Every crash FATALS equals joined INJ_SEV4 persons. FATALS is derived from that classification, so this checks extraction/joins, not independent ascertainment.",
          "geography_compatibility": "Complete OMB2023 membership and primary Vintage2024 components match. PrinceWilliam/Fairfax transfer is internal to DC MSA. Change inventories do not prove every polygon vertex unchanged; native geography is distinct from PM2015.",
          "population_revision": "Vintage2024 July2024 is primary. Vintage2025 July2024 uses Jan2025 other boundaries; codes do not prove identical geometry. Revision sensitivity is not CI, newinput or a favourable replacement.",
          "manual_provenance": "Primary NHTSA multipart PDFs were decoded with exact payload hashes. Analytical/coding SHA512 differs from unacquired ROSA mirror checksums; cause is unknown. Coding metadata retains a draft/revisions phrase. Pinned primary endpoints/index/title/report/year, not mirror equivalence, establish this version.",
          "manual_source_refs": [
            {
              "report_number": "813794",
              "title": "FARS Analytical User Manual1975–2024",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813794",
              "reviewed_payload_sha256": "1288a6ad80f51ce954cf53bb3d07bf70bfc4910fb18cb877a5739a163595d1ad",
              "pdf_pages": [
                6,
                10
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            },
            {
              "report_number": "813791",
              "title": "2024 FARS Overview, ARF/final cycle",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813791",
              "reviewed_payload_sha256": "cae507854dfe5be1eb18cd6b97ffd1ec137350eccd32cb979ef41bbe938ea408",
              "pdf_pages": [
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              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": null
            },
            {
              "report_number": "813798",
              "title": "FARS/CRSS2024 Coding and Validation Manual",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813798",
              "reviewed_payload_sha256": "c9bbf7040939ab60c9663f3e0b7fb4bc5c2b9be4d6bafb5b59464800c921610a",
              "pdf_pages": [
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              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            }
          ],
          "geographic_change_review": {
            "id": "road-2024-geographic-change-review",
            "url": "/data/source-frames/road-2024-geographic-change-review.json",
            "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
          },
          "rights_review": {
            "id": "road-2024-rights",
            "url": "/data/source-frames/road-2024-rights-review.json",
            "sha256": "b555236b9483e4dc1b626debbda65c8d126062a63a5ac293aa0d63c5650982e3"
          },
          "independent_audit": {
            "id": "road-2024-independent-proof",
            "url": "/data/source-frames/road-2024-independent-proof.json",
            "sha256": "3cbfd334d95ca7ac065f51dbd08266e52db17015190ae1dfa70b0ed7f59adefb"
          },
          "initial_scope_decision": {
            "id": "road-2024-initial-scope-decision",
            "url": "/data/source-frames/road-2024-initial-scope-decision.json",
            "sha256": "87d49103c915bb4ee636b0fb94921440ec7343313986ad0d8390a607465fd2fc"
          }
        },
        "source_licences": {
          "fatalities": {
            "name": "NHTSA public U.S. Government information; distribution/copying permitted",
            "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
            "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
            "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
            "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
          },
          "population_and_membership": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          },
          "native_geometry": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          }
        }
      },
      "quality_flags": [
        {
          "code": "provisional-arf",
          "label": "Provisional ARF",
          "meaning": "2024 Annual Report File (ARF), provisional and subject to finalization"
        },
        {
          "code": "territorial-source-count",
          "label": "Territorial, not resident risk",
          "meaning": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents."
        },
        {
          "code": "unknowns-retained",
          "label": "Source unknowns preserved",
          "meaning": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation."
        }
      ],
      "uncertainty": {
        "status": "not-provided",
        "standard_error": null,
        "confidence_interval": null,
        "note": "Administrative fatal-crash census and resident population estimates; unknown case ascertainment/ARF revisions and population estimate error are not zero uncertainty."
      },
      "licence": {
        "name": "NHTSA public U.S. Government information; distribution/copying permitted",
        "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
        "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
        "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
        "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
      },
      "source_attribution": [
        {
          "publisher": "NHTSA",
          "title": "2024 FARS ARF",
          "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
          "licence": "NHTSA public U.S. Government information; distribution/copying permitted"
        },
        {
          "publisher": "U.S. Census Bureau",
          "title": "Vintage2024 / OMB2023 / TIGER2024",
          "url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
          "licence": "U.S. Census Bureau federal factual data and native statistical boundaries"
        }
      ],
      "evidence_id": "road-2024-omb2023-los-angeles",
      "city_name": "Los Angeles",
      "source_area_id": "31080",
      "source_area_name": "Los Angeles-Long Beach-Anaheim, CA",
      "review_status": "accepted",
      "frame": {
        "url": "/data/source-frames/road-2024-los-angeles-county-membership-population.json",
        "sha256": "04a148d8ac28e2cd9bdefd5eb002ec7ab1f9e4a6d9f72f88e2377c34bce27853"
      },
      "numerator_person_fatalities": 977,
      "fatal_crashes_not_numerator": 920,
      "midyear_resident_population": 12927614,
      "population_reference_date": "2024-07-01",
      "population_estimate_vintage": 2024
    },
    {
      "city_slug": "chicago",
      "value": 7.344363270275969,
      "unit": "per 100000",
      "period_start": "2024-01-01",
      "period_end": "2024-12-31",
      "source_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
      "geography_type": "harmonized-urban-area",
      "geography_ref": "census-tiger2024-road-v1-0:chicago",
      "protocol_ref": "civometra.road-deaths.measurement@1.0.0",
      "source_record_ref": "FARS2024 person.csv INJ_SEV4; STATE/ST_CASE joins and complete OMB2023 MSA 16980 counties; original rows linked in derivation.",
      "universe": "All source-classified fatal persons in qualifying motor-vehicle-in-transport traffic crashes on trafficways customarily open to public access within a reviewed functional urban region, irrespective of victim residence or victim mode. The source classification requires death immediately or within 30 days (720 hours) of the qualifying crash. The denominator is the same region's usual-resident midyear population for the crash year. This is a territorial source count scaled by residents, not resident travel-risk probability. Nonmotor-only events and a broader nonmotor-inclusive road-death total are outside the adopted construct. Every future country source requires independent evidence of this event scope and region/population compatibility or an exact separately reviewed bridge.",
      "denominator": 9408576,
      "publisher": "BestCityToLive / AINT.app, derived from NHTSA and U.S. Census Bureau",
      "source_label": "Provisional2024 FARS motor-vehicle traffic fatal persons / Vintage2024 residents",
      "geography": "Chicago-Naperville-Elgin, IL-IN · OMB2023 MSA / Jan2024 native boundaries",
      "definition_version": "1.0.0",
      "analytical_area_id": "us-omb2023-cbsa:16980",
      "boundary_label": "Chicago-Naperville-Elgin, IL-IN · OMB2023 MSA / Jan2024 native boundaries",
      "boundary_reference_year": 2024,
      "population_reference_year": 2024,
      "calculation_method": "100000 * source-classified fatal persons in qualifying motor-vehicle-in-transport public-access trafficway crashes occurring within the complete reviewed functional urban region during a calendar crash year / that region's usual-resident midyear population for the same year. Count persons, not fatal crashes; allocate by crash year, not death year. Retain source-classified qualifying cross-year/unknown death dates and cases with missing geocodes; never select only geocoded cases, impute unknown severity, claim unobserved individual follow-up intervals, or substitute resident deaths occurring elsewhere.",
      "scope_notice": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
      "derivation": {
        "kind": "territorial-fatal-persons-per-midyear-residents",
        "calculation": "100000 * source INJ_SEV4 fatal persons selected by complete MSA STATE+COUNTY membership / original July1 2024 MSA residents from Vintage2024. Count people, not crashes; use crash year2024, not death year. Retain qualifying cross-year/unknown death dates and missing geocodes; no unknown-severity imputation or favourable population-vintage selection.",
        "scale": 100000,
        "numerator_person_fatalities": 691,
        "fatal_crashes_not_numerator": 645,
        "midyear_resident_population": 9408576,
        "population_reference_date": "2024-07-01",
        "population_estimate_vintage": 2024,
        "calendar_period": {
          "year": 2024,
          "start": "2024-01-01",
          "end": "2024-12-31"
        },
        "exact_rational": {
          "numerator": 69100000,
          "denominator": 9408576,
          "reduced_fraction": "2159375/294018"
        },
        "source_victim_selector": {
          "file": "person.csv",
          "field": "INJ_SEV",
          "equals": "4",
          "label": "Fatal Injury (K)"
        },
        "location_selector": "Person STATE+COUNTY, independently equal to joined accident STATE+COUNTY; exact OMB county membership",
        "fatal_person_identity": [
          "STATE",
          "ST_CASE",
          "VEH_NO",
          "PER_NO"
        ],
        "crash_identity": [
          "STATE",
          "ST_CASE"
        ],
        "source_classification": {
          "motor_vehicle_in_transport_required": true,
          "death_followup_days": 30,
          "maximum_followup_hours": 720,
          "trafficway_basis": "customarily-open-to-public",
          "time_allocation": "crash-year",
          "fatal_injury_code": "4",
          "prior_death_code": "6",
          "unknown_injury_code": "9",
          "individual_death_timestamps_complete": false,
          "independent_720h_verification": false,
          "release_status": "2024 Annual Report File (ARF), provisional and subject to finalization",
          "intentional_event_rule": "Manual813798 page521: suicide-only cases are not coded; when other fatalities occur, the suicide victim is severity6 or0, not4. Prior-to-crash severity6 and unknown9 are not added.",
          "notice": "FARS requires a motor vehicle in transport and source-classified fatal injury within30days/720hours on a trafficway customarily open to the public. That is access, not legal road ownership or blanket public-parking coverage. Incomplete individual timestamps remain unknown; no independent720hour verification is claimed."
        },
        "source_geography": {
          "native_cbsa_code": "16980",
          "native_geoidfq": "310M700US16980",
          "source_area_name": "Chicago-Naperville-Elgin, IL-IN",
          "membership_edition": "OMB July2023, 2020 standards",
          "native_boundary_product": "TIGER/Line2024",
          "native_boundary_reference_date": "2024-01-01",
          "native_crs": "EPSG:4269",
          "native_record_number": 203,
          "county_count": 13,
          "county_fips": [
            "17031",
            "17037",
            "17043",
            "17063",
            "17089",
            "17093",
            "17097",
            "17111",
            "17197",
            "18073",
            "18089",
            "18111",
            "18127"
          ],
          "point_adapter": {
            "source_crs": "EPSG:4326",
            "target_crs": "EPSG:4269",
            "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
            "definition": "proj=noop ellps=GRS80",
            "accuracy_m": 4,
            "is_ballpark": false,
            "coordinate_epoch": null,
            "input_point": [
              -87.6298,
              41.8781
            ],
            "transformed_point": [
              -87.6298,
              41.8781
            ],
            "native_matches": [
              "16980"
            ],
            "diagnostic_distance_to_external_boundary_m": 36587.43253205496,
            "distance_notice": "Approximate diagnostic interior distance on source NAD83 geometry; no measured geospatial accuracy is claimed.",
            "qualification": "EPSG operation represents WGS84/NAD83 agreement at stated4m accuracy; its no-op pipeline is not a claim of exact datum identity or survey accuracy.",
            "proof": {
              "id": "road-2024-geometry-proof",
              "url": "/data/source-frames/road-2024-geometry-source-proof.json",
              "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6"
            }
          }
        },
        "original_population_record": {
          "filename": "cbsa-est2024-alldata.csv",
          "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0",
          "csv_row_1based": 295,
          "source_field": "POPESTIMATE2024",
          "raw_source_record": {
            "CBSA": "16980",
            "MDIV": "",
            "STCOU": "",
            "NAME": "Chicago-Naperville-Elgin, IL-IN",
            "LSAD": "Metropolitan Statistical Area",
            "ESTIMATESBASE2020": "9454363",
            "POPESTIMATE2020": "9439531",
            "POPESTIMATE2021": "9362043",
            "POPESTIMATE2022": "9310017",
            "POPESTIMATE2023": "9337814",
            "POPESTIMATE2024": "9408576",
            "NPOPCHG2020": "-14832",
            "NPOPCHG2021": "-77488",
            "NPOPCHG2022": "-52026",
            "NPOPCHG2023": "27797",
            "NPOPCHG2024": "70762",
            "BIRTHS2020": "24801",
            "BIRTHS2021": "96895",
            "BIRTHS2022": "95836",
            "BIRTHS2023": "94391",
            "BIRTHS2024": "93836",
            "DEATHS2020": "25559",
            "DEATHS2021": "83708",
            "DEATHS2022": "83247",
            "DEATHS2023": "76800",
            "DEATHS2024": "74448",
            "NATURALCHG2020": "-758",
            "NATURALCHG2021": "13187",
            "NATURALCHG2022": "12589",
            "NATURALCHG2023": "17591",
            "NATURALCHG2024": "19388",
            "INTERNATIONALMIG2020": "474",
            "INTERNATIONALMIG2021": "9457",
            "INTERNATIONALMIG2022": "52551",
            "INTERNATIONALMIG2023": "79160",
            "INTERNATIONALMIG2024": "96448",
            "DOMESTICMIG2020": "-15628",
            "DOMESTICMIG2021": "-99524",
            "DOMESTICMIG2022": "-118416",
            "DOMESTICMIG2023": "-68681",
            "DOMESTICMIG2024": "-45217",
            "NETMIG2020": "-15154",
            "NETMIG2021": "-90067",
            "NETMIG2022": "-65865",
            "NETMIG2023": "10479",
            "NETMIG2024": "51231",
            "RESIDUAL2020": "1080",
            "RESIDUAL2021": "-608",
            "RESIDUAL2022": "1250",
            "RESIDUAL2023": "-273",
            "RESIDUAL2024": "143"
          }
        },
        "original_source_archives": {
          "fars": {
            "manifest": {
              "id": "road-2024-fars-archive-manifest",
              "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.archive-manifest.json",
              "sha256": "cb9c413120d6e661e4173f740128cbf99ee54163c951a50a041dfa816ff3a79d"
            },
            "original_filename": "FARS2024NationalCSV.zip",
            "publisher": "National Highway Traffic Safety Administration",
            "publisher_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
            "bytes": 32672161,
            "sha256": "5112727a8c0dc91ffee27ca05bddb073934f2d192ce4fae997da767dccdbe04f",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-fars-part-001",
                "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.part-001.bin",
                "sha256": "bdbf3cfa60f0d4b5e45353eed975452cf9ffffc83b6d224a18841dc61baf3033",
                "order": 1,
                "offset": 0,
                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              },
              {
                "id": "road-2024-fars-part-002",
                "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.part-002.bin",
                "sha256": "f796ce0929224ddbc5594087919b350c14ea77fa9ea5f91c8f0e9a3a5ee4db73",
                "order": 2,
                "offset": 20000000,
                "bytes": 12672161,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              }
            ]
          },
          "native_geometry": {
            "manifest": {
              "id": "road-2024-tiger-archive-manifest",
              "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
              "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0"
            },
            "original_filename": "tl_2024_us_cbsa.zip",
            "publisher": "U.S. Census Bureau",
            "publisher_url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
            "bytes": 34959504,
            "sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-tiger-part-001",
                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-001.bin",
                "sha256": "593dd43be19c182f2de18bc1e2a4be7e987a0dc128ebbae233b5934d5f46358b",
                "order": 1,
                "offset": 0,
                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              },
              {
                "id": "road-2024-tiger-part-002",
                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-002.bin",
                "sha256": "6b72e011db8669ed0181c977c4edd5f60c4edef875366e1dae80386dc45653f1",
                "order": 2,
                "offset": 20000000,
                "bytes": 14959504,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              }
            ]
          },
          "membership": {
            "id": "road-2024-membership",
            "url": "/data/source-frames/road-2024-census-list1_2023.xlsx",
            "sha256": "952c4b1e78acbb54e6ec9412434b7602fedacbf021736351a63c181bdb753629"
          },
          "population": {
            "id": "road-2024-population",
            "url": "/data/source-frames/road-2024-cbsa-est2024-alldata.csv",
            "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0"
          },
          "population_revision": {
            "id": "road-2024-population-revision",
            "url": "/data/source-frames/road-2024-cbsa-est2025-alldata.csv",
            "sha256": "bf6fad83753456413d047d1acebeb434bd067eba9d6d0be62b3f737ad1301852"
          }
        },
        "source_frames": {
          "county_membership_population": {
            "id": "road-2024-chicago-county-membership-population",
            "url": "/data/source-frames/road-2024-chicago-county-membership-population.json",
            "sha256": "58a92371278879ecc4d9e62f96829826d0877cdb31e79b7d16db6b872380a00d"
          },
          "native_boundary": {
            "id": "road-2024-chicago-native-boundary",
            "url": "/data/source-frames/road-2024-chicago-native-boundary.json",
            "sha256": "ea466f700acde81a0566a608512ce81c610db5ad7e24e667f0c29191a6b68235"
          },
          "fatal_persons": {
            "id": "road-2024-chicago-fatal-persons",
            "url": "/data/source-frames/road-2024-chicago-fatal-persons.json",
            "sha256": "569d431d6dbca94eee80da5c6885defa182ab342db9906110d581e041bc37901"
          },
          "fatal_crashes": {
            "id": "road-2024-chicago-fatal-crashes",
            "url": "/data/source-frames/road-2024-chicago-fatal-crashes.json",
            "sha256": "fe8f56c6e1b705c3f9b15625dd6a10d881cbb4f3a54856cff3ea7d44df2eb301"
          },
          "source_facts": {
            "id": "road-2024-source-facts",
            "url": "/data/source-frames/road-2024-source-facts.json",
            "sha256": "7adbc22337ddb08dca3cde2cfb994e57649a62fa28d3912acf322aad56403e39"
          }
        },
        "revision_sensitivity_only": {
          "kind": "later-population-vintage-comparison",
          "population_estimate_vintage": 2025,
          "population_reference_date": "2024-07-01",
          "midyear_resident_population": 9411198,
          "value": 7.34231709926834,
          "exact_rational": {
            "numerator": 69100000,
            "denominator": 9411198,
            "reduced_fraction": "34550000/4705599"
          },
          "notice": "Not primary. Uses Jan1 2025 non-MSA boundaries; identical OMB membership does not establish exact native geometry identity. Revision comparison, not CI, new input or preferred rate."
        },
        "coverage": {
          "county_membership_complete": true,
          "population_components_reconcile": true,
          "fatal_person_vs_crash_fatals_reconcile": true,
          "unknown_other_notreported_county_fatalities_in_constituent_states": 0,
          "unknown_injury_severity_is_not_imputed": true,
          "source_person_rows_in_region": 1723,
          "unknown_not_reported_injury_severity_persons_in_region": 4,
          "died_prior_to_crash_persons_not_counted_as_crash_fatalities": 0,
          "fatal_person_death_year_counts": {
            "2024": 691
          },
          "fatal_crashes_with_out_of_range_or_missing_geocode": 0,
          "fatal_persons_in_crashes_with_out_of_range_or_missing_geocode": 0,
          "geocoded_crash_point_coverage_is_not_used_for_count_selection": true
        },
        "source_inventories": {
          "omb_county_relationships": 1915,
          "omb_tiger_cbsas": 935,
          "us_population_cbsas": 925,
          "puerto_rico_cbsas_absent_from_population": 10,
          "fars_scope": "50 US states and District of Columbia; acquired national file excludes Puerto Rico",
          "notice": "OMB/TIGER include10PuertoRico areas absent from both US population files; FARS PuertoRico code43 is not CensusFIPS72. No PuertoRico adapter/coverage claimed."
        },
        "method_qualification": {
          "territorial_not_resident_risk": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
          "ascertainment_and_provisional": "FARS2024 ARF is provisional; an administrative fatal-crash census does not establish complete ascertainment or zero uncertainty.",
          "unknown_dates_and_followup": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation.",
          "source_fatals_reconciliation": "Every crash FATALS equals joined INJ_SEV4 persons. FATALS is derived from that classification, so this checks extraction/joins, not independent ascertainment.",
          "geography_compatibility": "Complete OMB2023 membership and primary Vintage2024 components match. PrinceWilliam/Fairfax transfer is internal to DC MSA. Change inventories do not prove every polygon vertex unchanged; native geography is distinct from PM2015.",
          "population_revision": "Vintage2024 July2024 is primary. Vintage2025 July2024 uses Jan2025 other boundaries; codes do not prove identical geometry. Revision sensitivity is not CI, newinput or a favourable replacement.",
          "manual_provenance": "Primary NHTSA multipart PDFs were decoded with exact payload hashes. Analytical/coding SHA512 differs from unacquired ROSA mirror checksums; cause is unknown. Coding metadata retains a draft/revisions phrase. Pinned primary endpoints/index/title/report/year, not mirror equivalence, establish this version.",
          "manual_source_refs": [
            {
              "report_number": "813794",
              "title": "FARS Analytical User Manual1975–2024",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813794",
              "reviewed_payload_sha256": "1288a6ad80f51ce954cf53bb3d07bf70bfc4910fb18cb877a5739a163595d1ad",
              "pdf_pages": [
                6,
                10
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            },
            {
              "report_number": "813791",
              "title": "2024 FARS Overview, ARF/final cycle",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813791",
              "reviewed_payload_sha256": "cae507854dfe5be1eb18cd6b97ffd1ec137350eccd32cb979ef41bbe938ea408",
              "pdf_pages": [
                14
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": null
            },
            {
              "report_number": "813798",
              "title": "FARS/CRSS2024 Coding and Validation Manual",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813798",
              "reviewed_payload_sha256": "c9bbf7040939ab60c9663f3e0b7fb4bc5c2b9be4d6bafb5b59464800c921610a",
              "pdf_pages": [
                521
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            }
          ],
          "geographic_change_review": {
            "id": "road-2024-geographic-change-review",
            "url": "/data/source-frames/road-2024-geographic-change-review.json",
            "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
          },
          "rights_review": {
            "id": "road-2024-rights",
            "url": "/data/source-frames/road-2024-rights-review.json",
            "sha256": "b555236b9483e4dc1b626debbda65c8d126062a63a5ac293aa0d63c5650982e3"
          },
          "independent_audit": {
            "id": "road-2024-independent-proof",
            "url": "/data/source-frames/road-2024-independent-proof.json",
            "sha256": "3cbfd334d95ca7ac065f51dbd08266e52db17015190ae1dfa70b0ed7f59adefb"
          },
          "initial_scope_decision": {
            "id": "road-2024-initial-scope-decision",
            "url": "/data/source-frames/road-2024-initial-scope-decision.json",
            "sha256": "87d49103c915bb4ee636b0fb94921440ec7343313986ad0d8390a607465fd2fc"
          }
        },
        "source_licences": {
          "fatalities": {
            "name": "NHTSA public U.S. Government information; distribution/copying permitted",
            "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
            "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
            "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
            "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
          },
          "population_and_membership": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          },
          "native_geometry": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          }
        }
      },
      "quality_flags": [
        {
          "code": "provisional-arf",
          "label": "Provisional ARF",
          "meaning": "2024 Annual Report File (ARF), provisional and subject to finalization"
        },
        {
          "code": "territorial-source-count",
          "label": "Territorial, not resident risk",
          "meaning": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents."
        },
        {
          "code": "unknowns-retained",
          "label": "Source unknowns preserved",
          "meaning": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation."
        }
      ],
      "uncertainty": {
        "status": "not-provided",
        "standard_error": null,
        "confidence_interval": null,
        "note": "Administrative fatal-crash census and resident population estimates; unknown case ascertainment/ARF revisions and population estimate error are not zero uncertainty."
      },
      "licence": {
        "name": "NHTSA public U.S. Government information; distribution/copying permitted",
        "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
        "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
        "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
        "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
      },
      "source_attribution": [
        {
          "publisher": "NHTSA",
          "title": "2024 FARS ARF",
          "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
          "licence": "NHTSA public U.S. Government information; distribution/copying permitted"
        },
        {
          "publisher": "U.S. Census Bureau",
          "title": "Vintage2024 / OMB2023 / TIGER2024",
          "url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
          "licence": "U.S. Census Bureau federal factual data and native statistical boundaries"
        }
      ],
      "evidence_id": "road-2024-omb2023-chicago",
      "city_name": "Chicago",
      "source_area_id": "16980",
      "source_area_name": "Chicago-Naperville-Elgin, IL-IN",
      "review_status": "accepted",
      "frame": {
        "url": "/data/source-frames/road-2024-chicago-county-membership-population.json",
        "sha256": "58a92371278879ecc4d9e62f96829826d0877cdb31e79b7d16db6b872380a00d"
      },
      "numerator_person_fatalities": 691,
      "fatal_crashes_not_numerator": 645,
      "midyear_resident_population": 9408576,
      "population_reference_date": "2024-07-01",
      "population_estimate_vintage": 2024
    },
    {
      "city_slug": "boston",
      "value": 4.596542007518829,
      "unit": "per 100000",
      "period_start": "2024-01-01",
      "period_end": "2024-12-31",
      "source_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
      "geography_type": "harmonized-urban-area",
      "geography_ref": "census-tiger2024-road-v1-0:boston",
      "protocol_ref": "civometra.road-deaths.measurement@1.0.0",
      "source_record_ref": "FARS2024 person.csv INJ_SEV4; STATE/ST_CASE joins and complete OMB2023 MSA 14460 counties; original rows linked in derivation.",
      "universe": "All source-classified fatal persons in qualifying motor-vehicle-in-transport traffic crashes on trafficways customarily open to public access within a reviewed functional urban region, irrespective of victim residence or victim mode. The source classification requires death immediately or within 30 days (720 hours) of the qualifying crash. The denominator is the same region's usual-resident midyear population for the crash year. This is a territorial source count scaled by residents, not resident travel-risk probability. Nonmotor-only events and a broader nonmotor-inclusive road-death total are outside the adopted construct. Every future country source requires independent evidence of this event scope and region/population compatibility or an exact separately reviewed bridge.",
      "denominator": 5025517,
      "publisher": "BestCityToLive / AINT.app, derived from NHTSA and U.S. Census Bureau",
      "source_label": "Provisional2024 FARS motor-vehicle traffic fatal persons / Vintage2024 residents",
      "geography": "Boston-Cambridge-Newton, MA-NH · OMB2023 MSA / Jan2024 native boundaries",
      "definition_version": "1.0.0",
      "analytical_area_id": "us-omb2023-cbsa:14460",
      "boundary_label": "Boston-Cambridge-Newton, MA-NH · OMB2023 MSA / Jan2024 native boundaries",
      "boundary_reference_year": 2024,
      "population_reference_year": 2024,
      "calculation_method": "100000 * source-classified fatal persons in qualifying motor-vehicle-in-transport public-access trafficway crashes occurring within the complete reviewed functional urban region during a calendar crash year / that region's usual-resident midyear population for the same year. Count persons, not fatal crashes; allocate by crash year, not death year. Retain source-classified qualifying cross-year/unknown death dates and cases with missing geocodes; never select only geocoded cases, impute unknown severity, claim unobserved individual follow-up intervals, or substitute resident deaths occurring elsewhere.",
      "scope_notice": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
      "derivation": {
        "kind": "territorial-fatal-persons-per-midyear-residents",
        "calculation": "100000 * source INJ_SEV4 fatal persons selected by complete MSA STATE+COUNTY membership / original July1 2024 MSA residents from Vintage2024. Count people, not crashes; use crash year2024, not death year. Retain qualifying cross-year/unknown death dates and missing geocodes; no unknown-severity imputation or favourable population-vintage selection.",
        "scale": 100000,
        "numerator_person_fatalities": 231,
        "fatal_crashes_not_numerator": 220,
        "midyear_resident_population": 5025517,
        "population_reference_date": "2024-07-01",
        "population_estimate_vintage": 2024,
        "calendar_period": {
          "year": 2024,
          "start": "2024-01-01",
          "end": "2024-12-31"
        },
        "exact_rational": {
          "numerator": 23100000,
          "denominator": 5025517,
          "reduced_fraction": "3300000/717931"
        },
        "source_victim_selector": {
          "file": "person.csv",
          "field": "INJ_SEV",
          "equals": "4",
          "label": "Fatal Injury (K)"
        },
        "location_selector": "Person STATE+COUNTY, independently equal to joined accident STATE+COUNTY; exact OMB county membership",
        "fatal_person_identity": [
          "STATE",
          "ST_CASE",
          "VEH_NO",
          "PER_NO"
        ],
        "crash_identity": [
          "STATE",
          "ST_CASE"
        ],
        "source_classification": {
          "motor_vehicle_in_transport_required": true,
          "death_followup_days": 30,
          "maximum_followup_hours": 720,
          "trafficway_basis": "customarily-open-to-public",
          "time_allocation": "crash-year",
          "fatal_injury_code": "4",
          "prior_death_code": "6",
          "unknown_injury_code": "9",
          "individual_death_timestamps_complete": false,
          "independent_720h_verification": false,
          "release_status": "2024 Annual Report File (ARF), provisional and subject to finalization",
          "intentional_event_rule": "Manual813798 page521: suicide-only cases are not coded; when other fatalities occur, the suicide victim is severity6 or0, not4. Prior-to-crash severity6 and unknown9 are not added.",
          "notice": "FARS requires a motor vehicle in transport and source-classified fatal injury within30days/720hours on a trafficway customarily open to the public. That is access, not legal road ownership or blanket public-parking coverage. Incomplete individual timestamps remain unknown; no independent720hour verification is claimed."
        },
        "source_geography": {
          "native_cbsa_code": "14460",
          "native_geoidfq": "310M700US14460",
          "source_area_name": "Boston-Cambridge-Newton, MA-NH",
          "membership_edition": "OMB July2023, 2020 standards",
          "native_boundary_product": "TIGER/Line2024",
          "native_boundary_reference_date": "2024-01-01",
          "native_crs": "EPSG:4269",
          "native_record_number": 121,
          "county_count": 7,
          "county_fips": [
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            "25021",
            "25023",
            "25025",
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          ],
          "point_adapter": {
            "source_crs": "EPSG:4326",
            "target_crs": "EPSG:4269",
            "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
            "definition": "proj=noop ellps=GRS80",
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            "is_ballpark": false,
            "coordinate_epoch": null,
            "input_point": [
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            "transformed_point": [
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            "native_matches": [
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            ],
            "diagnostic_distance_to_external_boundary_m": 29639.109910421204,
            "distance_notice": "Approximate diagnostic interior distance on source NAD83 geometry; no measured geospatial accuracy is claimed.",
            "qualification": "EPSG operation represents WGS84/NAD83 agreement at stated4m accuracy; its no-op pipeline is not a claim of exact datum identity or survey accuracy.",
            "proof": {
              "id": "road-2024-geometry-proof",
              "url": "/data/source-frames/road-2024-geometry-source-proof.json",
              "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6"
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        },
        "original_population_record": {
          "filename": "cbsa-est2024-alldata.csv",
          "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0",
          "csv_row_1based": 197,
          "source_field": "POPESTIMATE2024",
          "raw_source_record": {
            "CBSA": "14460",
            "MDIV": "",
            "STCOU": "",
            "NAME": "Boston-Cambridge-Newton, MA-NH",
            "LSAD": "Metropolitan Statistical Area",
            "ESTIMATESBASE2020": "4944732",
            "POPESTIMATE2020": "4930540",
            "POPESTIMATE2021": "4911669",
            "POPESTIMATE2022": "4931775",
            "POPESTIMATE2023": "4967266",
            "POPESTIMATE2024": "5025517",
            "NPOPCHG2020": "-14192",
            "NPOPCHG2021": "-18871",
            "NPOPCHG2022": "20106",
            "NPOPCHG2023": "35491",
            "NPOPCHG2024": "58251",
            "BIRTHS2020": "12280",
            "BIRTHS2021": "47883",
            "BIRTHS2022": "49549",
            "BIRTHS2023": "49313",
            "BIRTHS2024": "49256",
            "DEATHS2020": "14700",
            "DEATHS2021": "39727",
            "DEATHS2022": "41313",
            "DEATHS2023": "39702",
            "DEATHS2024": "39145",
            "NATURALCHG2020": "-2420",
            "NATURALCHG2021": "8156",
            "NATURALCHG2022": "8236",
            "NATURALCHG2023": "9611",
            "NATURALCHG2024": "10111",
            "INTERNATIONALMIG2020": "727",
            "INTERNATIONALMIG2021": "13219",
            "INTERNATIONALMIG2022": "57776",
            "INTERNATIONALMIG2023": "58359",
            "INTERNATIONALMIG2024": "70731",
            "DOMESTICMIG2020": "-11763",
            "DOMESTICMIG2021": "-40321",
            "DOMESTICMIG2022": "-45605",
            "DOMESTICMIG2023": "-32377",
            "DOMESTICMIG2024": "-22736",
            "NETMIG2020": "-11036",
            "NETMIG2021": "-27102",
            "NETMIG2022": "12171",
            "NETMIG2023": "25982",
            "NETMIG2024": "47995",
            "RESIDUAL2020": "-736",
            "RESIDUAL2021": "75",
            "RESIDUAL2022": "-301",
            "RESIDUAL2023": "-102",
            "RESIDUAL2024": "145"
          }
        },
        "original_source_archives": {
          "fars": {
            "manifest": {
              "id": "road-2024-fars-archive-manifest",
              "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.archive-manifest.json",
              "sha256": "cb9c413120d6e661e4173f740128cbf99ee54163c951a50a041dfa816ff3a79d"
            },
            "original_filename": "FARS2024NationalCSV.zip",
            "publisher": "National Highway Traffic Safety Administration",
            "publisher_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
            "bytes": 32672161,
            "sha256": "5112727a8c0dc91ffee27ca05bddb073934f2d192ce4fae997da767dccdbe04f",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-fars-part-001",
                "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.part-001.bin",
                "sha256": "bdbf3cfa60f0d4b5e45353eed975452cf9ffffc83b6d224a18841dc61baf3033",
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                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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                "sha256": "f796ce0929224ddbc5594087919b350c14ea77fa9ea5f91c8f0e9a3a5ee4db73",
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                "bytes": 12672161,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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            ]
          },
          "native_geometry": {
            "manifest": {
              "id": "road-2024-tiger-archive-manifest",
              "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
              "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0"
            },
            "original_filename": "tl_2024_us_cbsa.zip",
            "publisher": "U.S. Census Bureau",
            "publisher_url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
            "bytes": 34959504,
            "sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-tiger-part-001",
                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-001.bin",
                "sha256": "593dd43be19c182f2de18bc1e2a4be7e987a0dc128ebbae233b5934d5f46358b",
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                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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                "sha256": "6b72e011db8669ed0181c977c4edd5f60c4edef875366e1dae80386dc45653f1",
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                "bytes": 14959504,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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            ]
          },
          "membership": {
            "id": "road-2024-membership",
            "url": "/data/source-frames/road-2024-census-list1_2023.xlsx",
            "sha256": "952c4b1e78acbb54e6ec9412434b7602fedacbf021736351a63c181bdb753629"
          },
          "population": {
            "id": "road-2024-population",
            "url": "/data/source-frames/road-2024-cbsa-est2024-alldata.csv",
            "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0"
          },
          "population_revision": {
            "id": "road-2024-population-revision",
            "url": "/data/source-frames/road-2024-cbsa-est2025-alldata.csv",
            "sha256": "bf6fad83753456413d047d1acebeb434bd067eba9d6d0be62b3f737ad1301852"
          }
        },
        "source_frames": {
          "county_membership_population": {
            "id": "road-2024-boston-county-membership-population",
            "url": "/data/source-frames/road-2024-boston-county-membership-population.json",
            "sha256": "33aebaf168d8ad0c8860c7de62dbdba0d51a5638e10287f1a4f21064ae354355"
          },
          "native_boundary": {
            "id": "road-2024-boston-native-boundary",
            "url": "/data/source-frames/road-2024-boston-native-boundary.json",
            "sha256": "b0ecf7cf451ac1d8756462a1a517311e0b5c801b18cdf90bf558aaac20c9fde1"
          },
          "fatal_persons": {
            "id": "road-2024-boston-fatal-persons",
            "url": "/data/source-frames/road-2024-boston-fatal-persons.json",
            "sha256": "d4c53fdd7d422b045351ea488e44a4303d8c02f1abfd37b3be9a6722ec71e11d"
          },
          "fatal_crashes": {
            "id": "road-2024-boston-fatal-crashes",
            "url": "/data/source-frames/road-2024-boston-fatal-crashes.json",
            "sha256": "499661b722a0a614ca6f2096b72bef6cde15abdc62f82dc17743100c22b5b6b1"
          },
          "source_facts": {
            "id": "road-2024-source-facts",
            "url": "/data/source-frames/road-2024-source-facts.json",
            "sha256": "7adbc22337ddb08dca3cde2cfb994e57649a62fa28d3912acf322aad56403e39"
          }
        },
        "revision_sensitivity_only": {
          "kind": "later-population-vintage-comparison",
          "population_estimate_vintage": 2025,
          "population_reference_date": "2024-07-01",
          "midyear_resident_population": 5022230,
          "value": 4.5995503989263735,
          "exact_rational": {
            "numerator": 23100000,
            "denominator": 5022230,
            "reduced_fraction": "2310000/502223"
          },
          "notice": "Not primary. Uses Jan1 2025 non-MSA boundaries; identical OMB membership does not establish exact native geometry identity. Revision comparison, not CI, new input or preferred rate."
        },
        "coverage": {
          "county_membership_complete": true,
          "population_components_reconcile": true,
          "fatal_person_vs_crash_fatals_reconcile": true,
          "unknown_other_notreported_county_fatalities_in_constituent_states": 0,
          "unknown_injury_severity_is_not_imputed": true,
          "source_person_rows_in_region": 488,
          "unknown_not_reported_injury_severity_persons_in_region": 3,
          "died_prior_to_crash_persons_not_counted_as_crash_fatalities": 0,
          "fatal_person_death_year_counts": {
            "2024": 230,
            "2025": 1
          },
          "fatal_crashes_with_out_of_range_or_missing_geocode": 0,
          "fatal_persons_in_crashes_with_out_of_range_or_missing_geocode": 0,
          "geocoded_crash_point_coverage_is_not_used_for_count_selection": true
        },
        "source_inventories": {
          "omb_county_relationships": 1915,
          "omb_tiger_cbsas": 935,
          "us_population_cbsas": 925,
          "puerto_rico_cbsas_absent_from_population": 10,
          "fars_scope": "50 US states and District of Columbia; acquired national file excludes Puerto Rico",
          "notice": "OMB/TIGER include10PuertoRico areas absent from both US population files; FARS PuertoRico code43 is not CensusFIPS72. No PuertoRico adapter/coverage claimed."
        },
        "method_qualification": {
          "territorial_not_resident_risk": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
          "ascertainment_and_provisional": "FARS2024 ARF is provisional; an administrative fatal-crash census does not establish complete ascertainment or zero uncertainty.",
          "unknown_dates_and_followup": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation.",
          "source_fatals_reconciliation": "Every crash FATALS equals joined INJ_SEV4 persons. FATALS is derived from that classification, so this checks extraction/joins, not independent ascertainment.",
          "geography_compatibility": "Complete OMB2023 membership and primary Vintage2024 components match. PrinceWilliam/Fairfax transfer is internal to DC MSA. Change inventories do not prove every polygon vertex unchanged; native geography is distinct from PM2015.",
          "population_revision": "Vintage2024 July2024 is primary. Vintage2025 July2024 uses Jan2025 other boundaries; codes do not prove identical geometry. Revision sensitivity is not CI, newinput or a favourable replacement.",
          "manual_provenance": "Primary NHTSA multipart PDFs were decoded with exact payload hashes. Analytical/coding SHA512 differs from unacquired ROSA mirror checksums; cause is unknown. Coding metadata retains a draft/revisions phrase. Pinned primary endpoints/index/title/report/year, not mirror equivalence, establish this version.",
          "manual_source_refs": [
            {
              "report_number": "813794",
              "title": "FARS Analytical User Manual1975–2024",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813794",
              "reviewed_payload_sha256": "1288a6ad80f51ce954cf53bb3d07bf70bfc4910fb18cb877a5739a163595d1ad",
              "pdf_pages": [
                6,
                10
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            },
            {
              "report_number": "813791",
              "title": "2024 FARS Overview, ARF/final cycle",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813791",
              "reviewed_payload_sha256": "cae507854dfe5be1eb18cd6b97ffd1ec137350eccd32cb979ef41bbe938ea408",
              "pdf_pages": [
                14
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": null
            },
            {
              "report_number": "813798",
              "title": "FARS/CRSS2024 Coding and Validation Manual",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813798",
              "reviewed_payload_sha256": "c9bbf7040939ab60c9663f3e0b7fb4bc5c2b9be4d6bafb5b59464800c921610a",
              "pdf_pages": [
                521
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            }
          ],
          "geographic_change_review": {
            "id": "road-2024-geographic-change-review",
            "url": "/data/source-frames/road-2024-geographic-change-review.json",
            "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
          },
          "rights_review": {
            "id": "road-2024-rights",
            "url": "/data/source-frames/road-2024-rights-review.json",
            "sha256": "b555236b9483e4dc1b626debbda65c8d126062a63a5ac293aa0d63c5650982e3"
          },
          "independent_audit": {
            "id": "road-2024-independent-proof",
            "url": "/data/source-frames/road-2024-independent-proof.json",
            "sha256": "3cbfd334d95ca7ac065f51dbd08266e52db17015190ae1dfa70b0ed7f59adefb"
          },
          "initial_scope_decision": {
            "id": "road-2024-initial-scope-decision",
            "url": "/data/source-frames/road-2024-initial-scope-decision.json",
            "sha256": "87d49103c915bb4ee636b0fb94921440ec7343313986ad0d8390a607465fd2fc"
          }
        },
        "source_licences": {
          "fatalities": {
            "name": "NHTSA public U.S. Government information; distribution/copying permitted",
            "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
            "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
            "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
            "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
          },
          "population_and_membership": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          },
          "native_geometry": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          }
        }
      },
      "quality_flags": [
        {
          "code": "provisional-arf",
          "label": "Provisional ARF",
          "meaning": "2024 Annual Report File (ARF), provisional and subject to finalization"
        },
        {
          "code": "territorial-source-count",
          "label": "Territorial, not resident risk",
          "meaning": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents."
        },
        {
          "code": "unknowns-retained",
          "label": "Source unknowns preserved",
          "meaning": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation."
        }
      ],
      "uncertainty": {
        "status": "not-provided",
        "standard_error": null,
        "confidence_interval": null,
        "note": "Administrative fatal-crash census and resident population estimates; unknown case ascertainment/ARF revisions and population estimate error are not zero uncertainty."
      },
      "licence": {
        "name": "NHTSA public U.S. Government information; distribution/copying permitted",
        "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
        "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
        "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
        "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
      },
      "source_attribution": [
        {
          "publisher": "NHTSA",
          "title": "2024 FARS ARF",
          "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
          "licence": "NHTSA public U.S. Government information; distribution/copying permitted"
        },
        {
          "publisher": "U.S. Census Bureau",
          "title": "Vintage2024 / OMB2023 / TIGER2024",
          "url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
          "licence": "U.S. Census Bureau federal factual data and native statistical boundaries"
        }
      ],
      "evidence_id": "road-2024-omb2023-boston",
      "city_name": "Boston",
      "source_area_id": "14460",
      "source_area_name": "Boston-Cambridge-Newton, MA-NH",
      "review_status": "accepted",
      "frame": {
        "url": "/data/source-frames/road-2024-boston-county-membership-population.json",
        "sha256": "33aebaf168d8ad0c8860c7de62dbdba0d51a5638e10287f1a4f21064ae354355"
      },
      "numerator_person_fatalities": 231,
      "fatal_crashes_not_numerator": 220,
      "midyear_resident_population": 5025517,
      "population_reference_date": "2024-07-01",
      "population_estimate_vintage": 2024
    },
    {
      "city_slug": "washington-dc",
      "value": 6.836025044088477,
      "unit": "per 100000",
      "period_start": "2024-01-01",
      "period_end": "2024-12-31",
      "source_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
      "geography_type": "harmonized-urban-area",
      "geography_ref": "census-tiger2024-road-v1-0:washington-dc",
      "protocol_ref": "civometra.road-deaths.measurement@1.0.0",
      "source_record_ref": "FARS2024 person.csv INJ_SEV4; STATE/ST_CASE joins and complete OMB2023 MSA 47900 counties; original rows linked in derivation.",
      "universe": "All source-classified fatal persons in qualifying motor-vehicle-in-transport traffic crashes on trafficways customarily open to public access within a reviewed functional urban region, irrespective of victim residence or victim mode. The source classification requires death immediately or within 30 days (720 hours) of the qualifying crash. The denominator is the same region's usual-resident midyear population for the crash year. This is a territorial source count scaled by residents, not resident travel-risk probability. Nonmotor-only events and a broader nonmotor-inclusive road-death total are outside the adopted construct. Every future country source requires independent evidence of this event scope and region/population compatibility or an exact separately reviewed bridge.",
      "denominator": 6436489,
      "publisher": "BestCityToLive / AINT.app, derived from NHTSA and U.S. Census Bureau",
      "source_label": "Provisional2024 FARS motor-vehicle traffic fatal persons / Vintage2024 residents",
      "geography": "Washington-Arlington-Alexandria, DC-VA-MD-WV · OMB2023 MSA / Jan2024 native boundaries",
      "definition_version": "1.0.0",
      "analytical_area_id": "us-omb2023-cbsa:47900",
      "boundary_label": "Washington-Arlington-Alexandria, DC-VA-MD-WV · OMB2023 MSA / Jan2024 native boundaries",
      "boundary_reference_year": 2024,
      "population_reference_year": 2024,
      "calculation_method": "100000 * source-classified fatal persons in qualifying motor-vehicle-in-transport public-access trafficway crashes occurring within the complete reviewed functional urban region during a calendar crash year / that region's usual-resident midyear population for the same year. Count persons, not fatal crashes; allocate by crash year, not death year. Retain source-classified qualifying cross-year/unknown death dates and cases with missing geocodes; never select only geocoded cases, impute unknown severity, claim unobserved individual follow-up intervals, or substitute resident deaths occurring elsewhere.",
      "scope_notice": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
      "derivation": {
        "kind": "territorial-fatal-persons-per-midyear-residents",
        "calculation": "100000 * source INJ_SEV4 fatal persons selected by complete MSA STATE+COUNTY membership / original July1 2024 MSA residents from Vintage2024. Count people, not crashes; use crash year2024, not death year. Retain qualifying cross-year/unknown death dates and missing geocodes; no unknown-severity imputation or favourable population-vintage selection.",
        "scale": 100000,
        "numerator_person_fatalities": 440,
        "fatal_crashes_not_numerator": 415,
        "midyear_resident_population": 6436489,
        "population_reference_date": "2024-07-01",
        "population_estimate_vintage": 2024,
        "calendar_period": {
          "year": 2024,
          "start": "2024-01-01",
          "end": "2024-12-31"
        },
        "exact_rational": {
          "numerator": 44000000,
          "denominator": 6436489,
          "reduced_fraction": "44000000/6436489"
        },
        "source_victim_selector": {
          "file": "person.csv",
          "field": "INJ_SEV",
          "equals": "4",
          "label": "Fatal Injury (K)"
        },
        "location_selector": "Person STATE+COUNTY, independently equal to joined accident STATE+COUNTY; exact OMB county membership",
        "fatal_person_identity": [
          "STATE",
          "ST_CASE",
          "VEH_NO",
          "PER_NO"
        ],
        "crash_identity": [
          "STATE",
          "ST_CASE"
        ],
        "source_classification": {
          "motor_vehicle_in_transport_required": true,
          "death_followup_days": 30,
          "maximum_followup_hours": 720,
          "trafficway_basis": "customarily-open-to-public",
          "time_allocation": "crash-year",
          "fatal_injury_code": "4",
          "prior_death_code": "6",
          "unknown_injury_code": "9",
          "individual_death_timestamps_complete": false,
          "independent_720h_verification": false,
          "release_status": "2024 Annual Report File (ARF), provisional and subject to finalization",
          "intentional_event_rule": "Manual813798 page521: suicide-only cases are not coded; when other fatalities occur, the suicide victim is severity6 or0, not4. Prior-to-crash severity6 and unknown9 are not added.",
          "notice": "FARS requires a motor vehicle in transport and source-classified fatal injury within30days/720hours on a trafficway customarily open to the public. That is access, not legal road ownership or blanket public-parking coverage. Incomplete individual timestamps remain unknown; no independent720hour verification is claimed."
        },
        "source_geography": {
          "native_cbsa_code": "47900",
          "native_geoidfq": "310M700US47900",
          "source_area_name": "Washington-Arlington-Alexandria, DC-VA-MD-WV",
          "membership_edition": "OMB July2023, 2020 standards",
          "native_boundary_product": "TIGER/Line2024",
          "native_boundary_reference_date": "2024-01-01",
          "native_crs": "EPSG:4269",
          "native_record_number": 485,
          "county_count": 23,
          "county_fips": [
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            "24021",
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            "24033",
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            "51043",
            "51047",
            "51059",
            "51061",
            "51107",
            "51153",
            "51157",
            "51177",
            "51179",
            "51187",
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            "51600",
            "51610",
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            "51683",
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            "54037"
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          "point_adapter": {
            "source_crs": "EPSG:4326",
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            "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
            "definition": "proj=noop ellps=GRS80",
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            "is_ballpark": false,
            "coordinate_epoch": null,
            "input_point": [
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            ],
            "transformed_point": [
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            ],
            "native_matches": [
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            ],
            "diagnostic_distance_to_external_boundary_m": 24947.798351437592,
            "distance_notice": "Approximate diagnostic interior distance on source NAD83 geometry; no measured geospatial accuracy is claimed.",
            "qualification": "EPSG operation represents WGS84/NAD83 agreement at stated4m accuracy; its no-op pipeline is not a claim of exact datum identity or survey accuracy.",
            "proof": {
              "id": "road-2024-geometry-proof",
              "url": "/data/source-frames/road-2024-geometry-source-proof.json",
              "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6"
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        "original_population_record": {
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          "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0",
          "csv_row_1based": 1523,
          "source_field": "POPESTIMATE2024",
          "raw_source_record": {
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            "MDIV": "",
            "STCOU": "",
            "NAME": "Washington-Arlington-Alexandria, DC-VA-MD-WV",
            "LSAD": "Metropolitan Statistical Area",
            "ESTIMATESBASE2020": "6278595",
            "POPESTIMATE2020": "6260475",
            "POPESTIMATE2021": "6259238",
            "POPESTIMATE2022": "6289810",
            "POPESTIMATE2023": "6345881",
            "POPESTIMATE2024": "6436489",
            "NPOPCHG2020": "-18120",
            "NPOPCHG2021": "-1237",
            "NPOPCHG2022": "30572",
            "NPOPCHG2023": "56071",
            "NPOPCHG2024": "90608",
            "BIRTHS2020": "18183",
            "BIRTHS2021": "71296",
            "BIRTHS2022": "72694",
            "BIRTHS2023": "70879",
            "BIRTHS2024": "68895",
            "DEATHS2020": "13235",
            "DEATHS2021": "42106",
            "DEATHS2022": "42544",
            "DEATHS2023": "39812",
            "DEATHS2024": "39376",
            "NATURALCHG2020": "4948",
            "NATURALCHG2021": "29190",
            "NATURALCHG2022": "30150",
            "NATURALCHG2023": "31067",
            "NATURALCHG2024": "29519",
            "INTERNATIONALMIG2020": "1056",
            "INTERNATIONALMIG2021": "16934",
            "INTERNATIONALMIG2022": "69186",
            "INTERNATIONALMIG2023": "69032",
            "INTERNATIONALMIG2024": "83844",
            "DOMESTICMIG2020": "-21158",
            "DOMESTICMIG2021": "-47063",
            "DOMESTICMIG2022": "-69575",
            "DOMESTICMIG2023": "-44169",
            "DOMESTICMIG2024": "-22784",
            "NETMIG2020": "-20102",
            "NETMIG2021": "-30129",
            "NETMIG2022": "-389",
            "NETMIG2023": "24863",
            "NETMIG2024": "61060",
            "RESIDUAL2020": "-2966",
            "RESIDUAL2021": "-298",
            "RESIDUAL2022": "811",
            "RESIDUAL2023": "141",
            "RESIDUAL2024": "29"
          }
        },
        "original_source_archives": {
          "fars": {
            "manifest": {
              "id": "road-2024-fars-archive-manifest",
              "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.archive-manifest.json",
              "sha256": "cb9c413120d6e661e4173f740128cbf99ee54163c951a50a041dfa816ff3a79d"
            },
            "original_filename": "FARS2024NationalCSV.zip",
            "publisher": "National Highway Traffic Safety Administration",
            "publisher_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
            "bytes": 32672161,
            "sha256": "5112727a8c0dc91ffee27ca05bddb073934f2d192ce4fae997da767dccdbe04f",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
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                "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.part-001.bin",
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                "standalone_zip": false
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          "native_geometry": {
            "manifest": {
              "id": "road-2024-tiger-archive-manifest",
              "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
              "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0"
            },
            "original_filename": "tl_2024_us_cbsa.zip",
            "publisher": "U.S. Census Bureau",
            "publisher_url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
            "bytes": 34959504,
            "sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-tiger-part-001",
                "url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-001.bin",
                "sha256": "593dd43be19c182f2de18bc1e2a4be7e987a0dc128ebbae233b5934d5f46358b",
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                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
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              {
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                "sha256": "6b72e011db8669ed0181c977c4edd5f60c4edef875366e1dae80386dc45653f1",
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                "bytes": 14959504,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              }
            ]
          },
          "membership": {
            "id": "road-2024-membership",
            "url": "/data/source-frames/road-2024-census-list1_2023.xlsx",
            "sha256": "952c4b1e78acbb54e6ec9412434b7602fedacbf021736351a63c181bdb753629"
          },
          "population": {
            "id": "road-2024-population",
            "url": "/data/source-frames/road-2024-cbsa-est2024-alldata.csv",
            "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0"
          },
          "population_revision": {
            "id": "road-2024-population-revision",
            "url": "/data/source-frames/road-2024-cbsa-est2025-alldata.csv",
            "sha256": "bf6fad83753456413d047d1acebeb434bd067eba9d6d0be62b3f737ad1301852"
          }
        },
        "source_frames": {
          "county_membership_population": {
            "id": "road-2024-washington-dc-county-membership-population",
            "url": "/data/source-frames/road-2024-washington-dc-county-membership-population.json",
            "sha256": "8fcbe9e141daab0dcd5891bf0b071e3389f75cf1d553e5099e63cfc438f9f173"
          },
          "native_boundary": {
            "id": "road-2024-washington-dc-native-boundary",
            "url": "/data/source-frames/road-2024-washington-dc-native-boundary.json",
            "sha256": "a66806f4c4ab8dc539816f3649de4e274f625f82b30ade0f6c08f0ecfe3d5ccf"
          },
          "fatal_persons": {
            "id": "road-2024-washington-dc-fatal-persons",
            "url": "/data/source-frames/road-2024-washington-dc-fatal-persons.json",
            "sha256": "2aba112a4c739abfe4607d22262188fc11f297babb9884c04b543683a9915cc6"
          },
          "fatal_crashes": {
            "id": "road-2024-washington-dc-fatal-crashes",
            "url": "/data/source-frames/road-2024-washington-dc-fatal-crashes.json",
            "sha256": "e935e03049ce49fd4abe3f7ffa3ad19658a17a476727de4f9ec6208400fbdf5c"
          },
          "source_facts": {
            "id": "road-2024-source-facts",
            "url": "/data/source-frames/road-2024-source-facts.json",
            "sha256": "7adbc22337ddb08dca3cde2cfb994e57649a62fa28d3912acf322aad56403e39"
          }
        },
        "revision_sensitivity_only": {
          "kind": "later-population-vintage-comparison",
          "population_estimate_vintage": 2025,
          "population_reference_date": "2024-07-01",
          "midyear_resident_population": 6415518,
          "value": 6.858370594549029,
          "exact_rational": {
            "numerator": 44000000,
            "denominator": 6415518,
            "reduced_fraction": "22000000/3207759"
          },
          "notice": "Not primary. Uses Jan1 2025 non-MSA boundaries; identical OMB membership does not establish exact native geometry identity. Revision comparison, not CI, new input or preferred rate."
        },
        "coverage": {
          "county_membership_complete": true,
          "population_components_reconcile": true,
          "fatal_person_vs_crash_fatals_reconcile": true,
          "unknown_other_notreported_county_fatalities_in_constituent_states": 0,
          "unknown_injury_severity_is_not_imputed": true,
          "source_person_rows_in_region": 1017,
          "unknown_not_reported_injury_severity_persons_in_region": 27,
          "died_prior_to_crash_persons_not_counted_as_crash_fatalities": 0,
          "fatal_person_death_year_counts": {
            "2024": 439,
            "9999": 1
          },
          "fatal_crashes_with_out_of_range_or_missing_geocode": 6,
          "fatal_persons_in_crashes_with_out_of_range_or_missing_geocode": 6,
          "geocoded_crash_point_coverage_is_not_used_for_count_selection": true
        },
        "source_inventories": {
          "omb_county_relationships": 1915,
          "omb_tiger_cbsas": 935,
          "us_population_cbsas": 925,
          "puerto_rico_cbsas_absent_from_population": 10,
          "fars_scope": "50 US states and District of Columbia; acquired national file excludes Puerto Rico",
          "notice": "OMB/TIGER include10PuertoRico areas absent from both US population files; FARS PuertoRico code43 is not CensusFIPS72. No PuertoRico adapter/coverage claimed."
        },
        "method_qualification": {
          "territorial_not_resident_risk": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
          "ascertainment_and_provisional": "FARS2024 ARF is provisional; an administrative fatal-crash census does not establish complete ascertainment or zero uncertainty.",
          "unknown_dates_and_followup": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation.",
          "source_fatals_reconciliation": "Every crash FATALS equals joined INJ_SEV4 persons. FATALS is derived from that classification, so this checks extraction/joins, not independent ascertainment.",
          "geography_compatibility": "Complete OMB2023 membership and primary Vintage2024 components match. PrinceWilliam/Fairfax transfer is internal to DC MSA. Change inventories do not prove every polygon vertex unchanged; native geography is distinct from PM2015.",
          "population_revision": "Vintage2024 July2024 is primary. Vintage2025 July2024 uses Jan2025 other boundaries; codes do not prove identical geometry. Revision sensitivity is not CI, newinput or a favourable replacement.",
          "manual_provenance": "Primary NHTSA multipart PDFs were decoded with exact payload hashes. Analytical/coding SHA512 differs from unacquired ROSA mirror checksums; cause is unknown. Coding metadata retains a draft/revisions phrase. Pinned primary endpoints/index/title/report/year, not mirror equivalence, establish this version.",
          "manual_source_refs": [
            {
              "report_number": "813794",
              "title": "FARS Analytical User Manual1975–2024",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813794",
              "reviewed_payload_sha256": "1288a6ad80f51ce954cf53bb3d07bf70bfc4910fb18cb877a5739a163595d1ad",
              "pdf_pages": [
                6,
                10
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            },
            {
              "report_number": "813791",
              "title": "2024 FARS Overview, ARF/final cycle",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813791",
              "reviewed_payload_sha256": "cae507854dfe5be1eb18cd6b97ffd1ec137350eccd32cb979ef41bbe938ea408",
              "pdf_pages": [
                14
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": null
            },
            {
              "report_number": "813798",
              "title": "FARS/CRSS2024 Coding and Validation Manual",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813798",
              "reviewed_payload_sha256": "c9bbf7040939ab60c9663f3e0b7fb4bc5c2b9be4d6bafb5b59464800c921610a",
              "pdf_pages": [
                521
              ],
              "archive_status": "privately-reviewed-not-publicly-redistributed",
              "publisher_mirror_checksum_match": false
            }
          ],
          "geographic_change_review": {
            "id": "road-2024-geographic-change-review",
            "url": "/data/source-frames/road-2024-geographic-change-review.json",
            "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
          },
          "rights_review": {
            "id": "road-2024-rights",
            "url": "/data/source-frames/road-2024-rights-review.json",
            "sha256": "b555236b9483e4dc1b626debbda65c8d126062a63a5ac293aa0d63c5650982e3"
          },
          "independent_audit": {
            "id": "road-2024-independent-proof",
            "url": "/data/source-frames/road-2024-independent-proof.json",
            "sha256": "3cbfd334d95ca7ac065f51dbd08266e52db17015190ae1dfa70b0ed7f59adefb"
          },
          "initial_scope_decision": {
            "id": "road-2024-initial-scope-decision",
            "url": "/data/source-frames/road-2024-initial-scope-decision.json",
            "sha256": "87d49103c915bb4ee636b0fb94921440ec7343313986ad0d8390a607465fd2fc"
          }
        },
        "source_licences": {
          "fatalities": {
            "name": "NHTSA public U.S. Government information; distribution/copying permitted",
            "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
            "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
            "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
            "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
          },
          "population_and_membership": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          },
          "native_geometry": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          }
        }
      },
      "quality_flags": [
        {
          "code": "provisional-arf",
          "label": "Provisional ARF",
          "meaning": "2024 Annual Report File (ARF), provisional and subject to finalization"
        },
        {
          "code": "territorial-source-count",
          "label": "Territorial, not resident risk",
          "meaning": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents."
        },
        {
          "code": "unknowns-retained",
          "label": "Source unknowns preserved",
          "meaning": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation."
        }
      ],
      "uncertainty": {
        "status": "not-provided",
        "standard_error": null,
        "confidence_interval": null,
        "note": "Administrative fatal-crash census and resident population estimates; unknown case ascertainment/ARF revisions and population estimate error are not zero uncertainty."
      },
      "licence": {
        "name": "NHTSA public U.S. Government information; distribution/copying permitted",
        "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
        "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
        "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
        "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
      },
      "source_attribution": [
        {
          "publisher": "NHTSA",
          "title": "2024 FARS ARF",
          "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
          "licence": "NHTSA public U.S. Government information; distribution/copying permitted"
        },
        {
          "publisher": "U.S. Census Bureau",
          "title": "Vintage2024 / OMB2023 / TIGER2024",
          "url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
          "licence": "U.S. Census Bureau federal factual data and native statistical boundaries"
        }
      ],
      "evidence_id": "road-2024-omb2023-washington-dc",
      "city_name": "Washington DC",
      "source_area_id": "47900",
      "source_area_name": "Washington-Arlington-Alexandria, DC-VA-MD-WV",
      "review_status": "accepted",
      "frame": {
        "url": "/data/source-frames/road-2024-washington-dc-county-membership-population.json",
        "sha256": "8fcbe9e141daab0dcd5891bf0b071e3389f75cf1d553e5099e63cfc438f9f173"
      },
      "numerator_person_fatalities": 440,
      "fatal_crashes_not_numerator": 415,
      "midyear_resident_population": 6436489,
      "population_reference_date": "2024-07-01",
      "population_estimate_vintage": 2024
    },
    {
      "city_slug": "seattle",
      "value": 7.670979622693942,
      "unit": "per 100000",
      "period_start": "2024-01-01",
      "period_end": "2024-12-31",
      "source_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
      "geography_type": "harmonized-urban-area",
      "geography_ref": "census-tiger2024-road-v1-0:seattle",
      "protocol_ref": "civometra.road-deaths.measurement@1.0.0",
      "source_record_ref": "FARS2024 person.csv INJ_SEV4; STATE/ST_CASE joins and complete OMB2023 MSA 42660 counties; original rows linked in derivation.",
      "universe": "All source-classified fatal persons in qualifying motor-vehicle-in-transport traffic crashes on trafficways customarily open to public access within a reviewed functional urban region, irrespective of victim residence or victim mode. The source classification requires death immediately or within 30 days (720 hours) of the qualifying crash. The denominator is the same region's usual-resident midyear population for the crash year. This is a territorial source count scaled by residents, not resident travel-risk probability. Nonmotor-only events and a broader nonmotor-inclusive road-death total are outside the adopted construct. Every future country source requires independent evidence of this event scope and region/population compatibility or an exact separately reviewed bridge.",
      "denominator": 4145494,
      "publisher": "BestCityToLive / AINT.app, derived from NHTSA and U.S. Census Bureau",
      "source_label": "Provisional2024 FARS motor-vehicle traffic fatal persons / Vintage2024 residents",
      "geography": "Seattle-Tacoma-Bellevue, WA · OMB2023 MSA / Jan2024 native boundaries",
      "definition_version": "1.0.0",
      "analytical_area_id": "us-omb2023-cbsa:42660",
      "boundary_label": "Seattle-Tacoma-Bellevue, WA · OMB2023 MSA / Jan2024 native boundaries",
      "boundary_reference_year": 2024,
      "population_reference_year": 2024,
      "calculation_method": "100000 * source-classified fatal persons in qualifying motor-vehicle-in-transport public-access trafficway crashes occurring within the complete reviewed functional urban region during a calendar crash year / that region's usual-resident midyear population for the same year. Count persons, not fatal crashes; allocate by crash year, not death year. Retain source-classified qualifying cross-year/unknown death dates and cases with missing geocodes; never select only geocoded cases, impute unknown severity, claim unobserved individual follow-up intervals, or substitute resident deaths occurring elsewhere.",
      "scope_notice": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
      "derivation": {
        "kind": "territorial-fatal-persons-per-midyear-residents",
        "calculation": "100000 * source INJ_SEV4 fatal persons selected by complete MSA STATE+COUNTY membership / original July1 2024 MSA residents from Vintage2024. Count people, not crashes; use crash year2024, not death year. Retain qualifying cross-year/unknown death dates and missing geocodes; no unknown-severity imputation or favourable population-vintage selection.",
        "scale": 100000,
        "numerator_person_fatalities": 318,
        "fatal_crashes_not_numerator": 293,
        "midyear_resident_population": 4145494,
        "population_reference_date": "2024-07-01",
        "population_estimate_vintage": 2024,
        "calendar_period": {
          "year": 2024,
          "start": "2024-01-01",
          "end": "2024-12-31"
        },
        "exact_rational": {
          "numerator": 31800000,
          "denominator": 4145494,
          "reduced_fraction": "15900000/2072747"
        },
        "source_victim_selector": {
          "file": "person.csv",
          "field": "INJ_SEV",
          "equals": "4",
          "label": "Fatal Injury (K)"
        },
        "location_selector": "Person STATE+COUNTY, independently equal to joined accident STATE+COUNTY; exact OMB county membership",
        "fatal_person_identity": [
          "STATE",
          "ST_CASE",
          "VEH_NO",
          "PER_NO"
        ],
        "crash_identity": [
          "STATE",
          "ST_CASE"
        ],
        "source_classification": {
          "motor_vehicle_in_transport_required": true,
          "death_followup_days": 30,
          "maximum_followup_hours": 720,
          "trafficway_basis": "customarily-open-to-public",
          "time_allocation": "crash-year",
          "fatal_injury_code": "4",
          "prior_death_code": "6",
          "unknown_injury_code": "9",
          "individual_death_timestamps_complete": false,
          "independent_720h_verification": false,
          "release_status": "2024 Annual Report File (ARF), provisional and subject to finalization",
          "intentional_event_rule": "Manual813798 page521: suicide-only cases are not coded; when other fatalities occur, the suicide victim is severity6 or0, not4. Prior-to-crash severity6 and unknown9 are not added.",
          "notice": "FARS requires a motor vehicle in transport and source-classified fatal injury within30days/720hours on a trafficway customarily open to the public. That is access, not legal road ownership or blanket public-parking coverage. Incomplete individual timestamps remain unknown; no independent720hour verification is claimed."
        },
        "source_geography": {
          "native_cbsa_code": "42660",
          "native_geoidfq": "310M700US42660",
          "source_area_name": "Seattle-Tacoma-Bellevue, WA",
          "membership_edition": "OMB July2023, 2020 standards",
          "native_boundary_product": "TIGER/Line2024",
          "native_boundary_reference_date": "2024-01-01",
          "native_crs": "EPSG:4269",
          "native_record_number": 251,
          "county_count": 3,
          "county_fips": [
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            "53053",
            "53061"
          ],
          "point_adapter": {
            "source_crs": "EPSG:4326",
            "target_crs": "EPSG:4269",
            "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
            "definition": "proj=noop ellps=GRS80",
            "accuracy_m": 4,
            "is_ballpark": false,
            "coordinate_epoch": null,
            "input_point": [
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            ],
            "transformed_point": [
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            ],
            "native_matches": [
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            ],
            "diagnostic_distance_to_external_boundary_m": 8629.426910953325,
            "distance_notice": "Approximate diagnostic interior distance on source NAD83 geometry; no measured geospatial accuracy is claimed.",
            "qualification": "EPSG operation represents WGS84/NAD83 agreement at stated4m accuracy; its no-op pipeline is not a claim of exact datum identity or survey accuracy.",
            "proof": {
              "id": "road-2024-geometry-proof",
              "url": "/data/source-frames/road-2024-geometry-source-proof.json",
              "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6"
            }
          }
        },
        "original_population_record": {
          "filename": "cbsa-est2024-alldata.csv",
          "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0",
          "csv_row_1based": 1349,
          "source_field": "POPESTIMATE2024",
          "raw_source_record": {
            "CBSA": "42660",
            "MDIV": "",
            "STCOU": "",
            "NAME": "Seattle-Tacoma-Bellevue, WA",
            "LSAD": "Metropolitan Statistical Area",
            "ESTIMATESBASE2020": "4018783",
            "POPESTIMATE2020": "4027979",
            "POPESTIMATE2021": "4017215",
            "POPESTIMATE2022": "4040080",
            "POPESTIMATE2023": "4078828",
            "POPESTIMATE2024": "4145494",
            "NPOPCHG2020": "9196",
            "NPOPCHG2021": "-10764",
            "NPOPCHG2022": "22865",
            "NPOPCHG2023": "38748",
            "NPOPCHG2024": "66666",
            "BIRTHS2020": "11186",
            "BIRTHS2021": "43707",
            "BIRTHS2022": "44370",
            "BIRTHS2023": "43532",
            "BIRTHS2024": "43132",
            "DEATHS2020": "6872",
            "DEATHS2021": "28775",
            "DEATHS2022": "30716",
            "DEATHS2023": "30129",
            "DEATHS2024": "28960",
            "NATURALCHG2020": "4314",
            "NATURALCHG2021": "14932",
            "NATURALCHG2022": "13654",
            "NATURALCHG2023": "13403",
            "NATURALCHG2024": "14172",
            "INTERNATIONALMIG2020": "564",
            "INTERNATIONALMIG2021": "11020",
            "INTERNATIONALMIG2022": "35641",
            "INTERNATIONALMIG2023": "52558",
            "INTERNATIONALMIG2024": "63849",
            "DOMESTICMIG2020": "3338",
            "DOMESTICMIG2021": "-37232",
            "DOMESTICMIG2022": "-23559",
            "DOMESTICMIG2023": "-26540",
            "DOMESTICMIG2024": "-11483",
            "NETMIG2020": "3902",
            "NETMIG2021": "-26212",
            "NETMIG2022": "12082",
            "NETMIG2023": "26018",
            "NETMIG2024": "52366",
            "RESIDUAL2020": "980",
            "RESIDUAL2021": "516",
            "RESIDUAL2022": "-2871",
            "RESIDUAL2023": "-673",
            "RESIDUAL2024": "128"
          }
        },
        "original_source_archives": {
          "fars": {
            "manifest": {
              "id": "road-2024-fars-archive-manifest",
              "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.archive-manifest.json",
              "sha256": "cb9c413120d6e661e4173f740128cbf99ee54163c951a50a041dfa816ff3a79d"
            },
            "original_filename": "FARS2024NationalCSV.zip",
            "publisher": "National Highway Traffic Safety Administration",
            "publisher_url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
            "bytes": 32672161,
            "sha256": "5112727a8c0dc91ffee27ca05bddb073934f2d192ce4fae997da767dccdbe04f",
            "reconstruction": "Exact ordered concatenation, without separators or decompression",
            "parts": [
              {
                "id": "road-2024-fars-part-001",
                "url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.part-001.bin",
                "sha256": "bdbf3cfa60f0d4b5e45353eed975452cf9ffffc83b6d224a18841dc61baf3033",
                "order": 1,
                "offset": 0,
                "bytes": 20000000,
                "content_type": "application/octet-stream",
                "standalone_zip": false
              },
              {
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            "original_filename": "tl_2024_us_cbsa.zip",
            "publisher": "U.S. Census Bureau",
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            "parts": [
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          "population": {
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            "url": "/data/source-frames/road-2024-cbsa-est2024-alldata.csv",
            "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0"
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          "population_revision": {
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            "url": "/data/source-frames/road-2024-cbsa-est2025-alldata.csv",
            "sha256": "bf6fad83753456413d047d1acebeb434bd067eba9d6d0be62b3f737ad1301852"
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        "source_frames": {
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            "id": "road-2024-seattle-county-membership-population",
            "url": "/data/source-frames/road-2024-seattle-county-membership-population.json",
            "sha256": "a7f1ae06c9ab85f7312aa640fdd3491c011e02338609c8b42bc6c05562fe635f"
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          "native_boundary": {
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            "url": "/data/source-frames/road-2024-seattle-native-boundary.json",
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            "url": "/data/source-frames/road-2024-seattle-fatal-persons.json",
            "sha256": "74ec72d077d6e3ea66cdb96b1fb321e69e598b220187b191b4224427fea8fc5c"
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          "fatal_crashes": {
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            "url": "/data/source-frames/road-2024-seattle-fatal-crashes.json",
            "sha256": "e22a813b67c16a8d6f15fc7d021a851319c4d666af75adbaf13e28c21f96f335"
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        },
        "revision_sensitivity_only": {
          "kind": "later-population-vintage-comparison",
          "population_estimate_vintage": 2025,
          "population_reference_date": "2024-07-01",
          "midyear_resident_population": 4118815,
          "value": 7.720667230744765,
          "exact_rational": {
            "numerator": 31800000,
            "denominator": 4118815,
            "reduced_fraction": "6360000/823763"
          },
          "notice": "Not primary. Uses Jan1 2025 non-MSA boundaries; identical OMB membership does not establish exact native geometry identity. Revision comparison, not CI, new input or preferred rate."
        },
        "coverage": {
          "county_membership_complete": true,
          "population_components_reconcile": true,
          "fatal_person_vs_crash_fatals_reconcile": true,
          "unknown_other_notreported_county_fatalities_in_constituent_states": 0,
          "unknown_injury_severity_is_not_imputed": true,
          "source_person_rows_in_region": 775,
          "unknown_not_reported_injury_severity_persons_in_region": 35,
          "died_prior_to_crash_persons_not_counted_as_crash_fatalities": 0,
          "fatal_person_death_year_counts": {
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            "2025": 2,
            "9999": 3
          },
          "fatal_crashes_with_out_of_range_or_missing_geocode": 1,
          "fatal_persons_in_crashes_with_out_of_range_or_missing_geocode": 1,
          "geocoded_crash_point_coverage_is_not_used_for_count_selection": true
        },
        "source_inventories": {
          "omb_county_relationships": 1915,
          "omb_tiger_cbsas": 935,
          "us_population_cbsas": 925,
          "puerto_rico_cbsas_absent_from_population": 10,
          "fars_scope": "50 US states and District of Columbia; acquired national file excludes Puerto Rico",
          "notice": "OMB/TIGER include10PuertoRico areas absent from both US population files; FARS PuertoRico code43 is not CensusFIPS72. No PuertoRico adapter/coverage claimed."
        },
        "method_qualification": {
          "territorial_not_resident_risk": "Territorial FARS motor-vehicle traffic deaths on customarily public-access trafficways, not nonmotor-only road events or resident travel risk. Native OMB2023 MSA counties and Jan2024 TIGER NAD83 boundaries are separately reviewed source regions, not PM2015 estimated-FUA equivalents.",
          "ascertainment_and_provisional": "FARS2024 ARF is provisional; an administrative fatal-crash census does not establish complete ascertainment or zero uncertainty.",
          "unknown_dates_and_followup": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation.",
          "source_fatals_reconciliation": "Every crash FATALS equals joined INJ_SEV4 persons. FATALS is derived from that classification, so this checks extraction/joins, not independent ascertainment.",
          "geography_compatibility": "Complete OMB2023 membership and primary Vintage2024 components match. PrinceWilliam/Fairfax transfer is internal to DC MSA. Change inventories do not prove every polygon vertex unchanged; native geography is distinct from PM2015.",
          "population_revision": "Vintage2024 July2024 is primary. Vintage2025 July2024 uses Jan2025 other boundaries; codes do not prove identical geometry. Revision sensitivity is not CI, newinput or a favourable replacement.",
          "manual_provenance": "Primary NHTSA multipart PDFs were decoded with exact payload hashes. Analytical/coding SHA512 differs from unacquired ROSA mirror checksums; cause is unknown. Coding metadata retains a draft/revisions phrase. Pinned primary endpoints/index/title/report/year, not mirror equivalence, establish this version.",
          "manual_source_refs": [
            {
              "report_number": "813794",
              "title": "FARS Analytical User Manual1975–2024",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813794",
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              "archive_status": "privately-reviewed-not-publicly-redistributed",
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            {
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              "title": "2024 FARS Overview, ARF/final cycle",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813791",
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            {
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              "title": "FARS/CRSS2024 Coding and Validation Manual",
              "source_url": "https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813798",
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              "archive_status": "privately-reviewed-not-publicly-redistributed",
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            "url": "/data/source-frames/road-2024-geographic-change-review.json",
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            "url": "/data/source-frames/road-2024-independent-proof.json",
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        "source_licences": {
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            "name": "NHTSA public U.S. Government information; distribution/copying permitted",
            "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
            "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
            "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
            "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
          },
          "population_and_membership": {
            "name": "U.S. Census Bureau federal factual data and native statistical boundaries",
            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
          },
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            "url": "https://www.govinfo.gov/content/pkg/USCODE-2024-title17/html/USCODE-2024-title17-chap1.htm",
            "acknowledgement": "Source: U.S. Census Bureau, OMB July2023, Vintage2024 residents and TIGER/Line2024. Vintage2025 is revision sensitivity only.",
            "derived_notice": "Factual selection/rates by BestCityToLive / AINT.app. TIGER/Line is a source trademark; statistical boundaries are not legal land descriptions. No Census/OMB endorsement or survey-accuracy claim.",
            "downstream_conditions_url": "https://www.census.gov/about/policies/citation.html"
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          "label": "Provisional ARF",
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        },
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          "label": "Source unknowns preserved",
          "meaning": "Known January2025 death years and unknown dates remain in crash-year2024 when source-classified INJ_SEV4. No independent720hour verification or date imputation."
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      "uncertainty": {
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        "confidence_interval": null,
        "note": "Administrative fatal-crash census and resident population estimates; unknown case ascertainment/ARF revisions and population estimate error are not zero uncertainty."
      },
      "licence": {
        "name": "NHTSA public U.S. Government information; distribution/copying permitted",
        "url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
        "acknowledgement": "Source: NHTSA, 2024 FARS Annual Report File (ARF), provisional, released April2026.",
        "derived_notice": "Regional selection/count/rate by BestCityToLive / AINT.app; no NHTSA endorsement or warranty. Agency logos/private submissions are not reused.",
        "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use"
      },
      "source_attribution": [
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          "title": "2024 FARS ARF",
          "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip",
          "licence": "NHTSA public U.S. Government information; distribution/copying permitted"
        },
        {
          "publisher": "U.S. Census Bureau",
          "title": "Vintage2024 / OMB2023 / TIGER2024",
          "url": "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip",
          "licence": "U.S. Census Bureau federal factual data and native statistical boundaries"
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      ],
      "evidence_id": "road-2024-omb2023-seattle",
      "city_name": "Seattle",
      "source_area_id": "42660",
      "source_area_name": "Seattle-Tacoma-Bellevue, WA",
      "review_status": "accepted",
      "frame": {
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        "sha256": "a7f1ae06c9ab85f7312aa640fdd3491c011e02338609c8b42bc6c05562fe635f"
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      "fatal_crashes_not_numerator": 293,
      "midyear_resident_population": 4145494,
      "population_reference_date": "2024-07-01",
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  ]
}