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        },
        "simplified": false,
        "reprojected": false,
        "clipped": false
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      "interpretation": "Official ASGS Edition 3 / GCCSA2021 functional capital-city region, not the municipality, a 2025 urban centre or the historical 2015 estimated FUA used for PM and heat. Native geometry remains GDA2020 EPSG:7844; only destination points use the separately reviewed coordinate adapter.",
      "geography_ref": "abs-gccsa2021-life-v1-0:perth",
      "geography_type_required": "harmonized-urban-area",
      "notice": "Scoped protocol permissions can repeat one unchanged physical boundary. Counts distinguish reviewed entries from unique destinations and analytical areas. Frozen 2015 estimated areas are not current observed commuting zones or 2025 urban centres.",
      "registry_url": "https://bestcitytolive.com/api/v1/scoring-geographies.json",
      "source_frames": [
        {
          "id": "life-gccsa2021-native",
          "archive_url": "/data/source-frames/life-gccsa2021-native-gda2020.zip",
          "sha256": "cc48b928d33ccd90cebd556e2cce696b132ac86519b7416588e011394e4518e7",
          "source_urls": [
            "https://www.abs.gov.au/statistics/standards/australian-statistical-geography-standard-asgs/edition-3-july-2021-june-2026/access-and-downloads/digital-boundary-files/GCCSA_2021_AUST_SHP_GDA2020.zip",
            "https://www.abs.gov.au/statistics/standards/australian-statistical-geography-standard-asgs/edition-3-july-2021-june-2026/main-structure-and-greater-capital-city-statistical-areas/greater-capital-city-statistical-areas"
          ],
          "licence": "CC BY 4.0",
          "licence_url": "https://creativecommons.org/licenses/by/4.0/",
          "reuse_review": "permitted-with-attribution",
          "reuse_reviewed_at": "2026-10-26",
          "attribution": "Source: Australian Bureau of Statistics, Life expectancy, 2022–2024, Table 2, original Persons cells; Australian Statistical Geography Standard Edition 3, GCCSA2021.",
          "derived_notice": "Original published Persons e0 cells and native geometry are unchanged. Source selection, destination-point bindings and evidence presentation by BestCityToLive / AINT.app; this is not an endorsement by the Australian Bureau of Statistics.",
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          "retrieved_at": "2026-10-26T23:18:55.121766+00:00",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/life-gccsa2021-native-gda2020.zip",
          "source_ref": "source-2b076ff9fcaa7878"
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        {
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          "sha256": "cc8bddee507bd6cb67cb0424e90382ee58e06ebe03af35d7b5830f1d973a237c",
          "source_urls": [
            "https://www.abs.gov.au/statistics/standards/australian-statistical-geography-standard-asgs/edition-3-july-2021-june-2026/access-and-downloads/digital-boundary-files/GCCSA_2021_AUST_SHP_GDA2020.zip",
            "https://www.abs.gov.au/statistics/standards/australian-statistical-geography-standard-asgs/edition-3-july-2021-june-2026/main-structure-and-greater-capital-city-statistical-areas/greater-capital-city-statistical-areas"
          ],
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          "licence_url": "https://creativecommons.org/licenses/by/4.0/",
          "reuse_review": "permitted-with-attribution",
          "reuse_reviewed_at": "2026-10-26",
          "attribution": "Source: Australian Bureau of Statistics, Life expectancy, 2022–2024, Table 2, original Persons cells; Australian Statistical Geography Standard Edition 3, GCCSA2021.",
          "derived_notice": "Original published Persons e0 cells and native geometry are unchanged. Source selection, destination-point bindings and evidence presentation by BestCityToLive / AINT.app; this is not an endorsement by the Australian Bureau of Statistics.",
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      "boundary_kind": "official-metropolitan-statistical-area",
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      "geography_edition": "OMB July2023 / TIGER/Line2024",
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      "crosswalk_method": "Complete OMB county set/native CBSA identity and unique point intersection under named non-ballpark4m NAD83/WGS84 adapter; source county compatibility separately reviewed.",
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          "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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        },
        "county_membership_population_frame": {
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          "url": "/data/source-frames/road-2024-new-york-city-county-membership-population.json",
          "sha256": "31633b1f32e0c3c3e6d205574b0e3cde9ee99ab9786f575a1c5088111386e5f2"
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          "url": "/data/source-frames/road-2024-geographic-change-review.json",
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      "approved_protocol_refs": [
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      ],
      "boundary_label": "New York-Newark-Jersey City, NY-NJ · OMB2023 MSA / Jan2024 native boundaries",
      "review_scope": "Road-only protocol permission, no PM/eFUA equivalence.",
      "exact_geometry": {
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        "clipped": false
      },
      "geography_ref": "census-tiger2024-road-v1-0:new-york-city",
      "geography_type_required": "harmonized-urban-area",
      "notice": "Scoped protocol permissions can repeat one unchanged physical boundary. Counts distinguish reviewed entries from unique destinations and analytical areas. Frozen 2015 estimated areas are not current observed commuting zones or 2025 urban centres.",
      "registry_url": "https://bestcitytolive.com/api/v1/scoring-geographies.json",
      "source_frames": [
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          "archive_url": "/data/source-frames/road-2024-new-york-city-native-boundary.json",
          "sha256": "59cb0ca28ee2f9ad542725ef808790b89558f5d5b88ef9babdf49f6c9d65c1b0",
          "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.",
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          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-new-york-city-native-boundary.json",
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        {
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          "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0",
          "source_urls": [
            "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",
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          "source_ref": "source-2d65d60c9b1cef68"
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        {
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          "archive_url": "/data/source-frames/road-2024-geometry-source-proof.json",
          "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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    },
    {
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      "status": "reviewed",
      "scope": "functional-urban-area",
      "boundary_kind": "official-metropolitan-statistical-area",
      "authority": "U.S. Census Bureau / OMB",
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      "boundary_vintage": "2024-01-01",
      "geography_edition": "OMB July2023 / TIGER/Line2024",
      "version": "census-tiger2024-road-v1.0.0",
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      "original_source_frame_ref": "road-2024-tiger-archive-manifest",
      "coordinate_source_frame_ref": "road-2024-geometry-proof",
      "crosswalk_method": "Complete OMB county set/native CBSA identity and unique point intersection under named non-ballpark4m NAD83/WGS84 adapter; source county compatibility separately reviewed.",
      "crosswalk": {
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          "latitude": 37.7749,
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          "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
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          "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": {
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            "url": "/data/source-frames/road-2024-geometry-source-proof.json",
            "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6"
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        "county_membership_population_frame": {
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          "url": "/data/source-frames/road-2024-san-francisco-county-membership-population.json",
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      "boundary_label": "San Francisco-Oakland-Fremont, CA · OMB2023 MSA / Jan2024 native boundaries",
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      "exact_geometry": {
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      "geography_ref": "census-tiger2024-road-v1-0:san-francisco",
      "geography_type_required": "harmonized-urban-area",
      "notice": "Scoped protocol permissions can repeat one unchanged physical boundary. Counts distinguish reviewed entries from unique destinations and analytical areas. Frozen 2015 estimated areas are not current observed commuting zones or 2025 urban centres.",
      "registry_url": "https://bestcitytolive.com/api/v1/scoring-geographies.json",
      "source_frames": [
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          "archive_url": "/data/source-frames/road-2024-san-francisco-native-boundary.json",
          "sha256": "8df2af4146e0f820b57ce300d2678ac82f90eb3da8342dcd721768b8d378d7b6",
          "source_urls": [
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            "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",
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          "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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          "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "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",
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          "source_ref": "source-2d65d60c9b1cef68"
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        {
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          "archive_url": "/data/source-frames/road-2024-geometry-source-proof.json",
          "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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-geometry-source-proof.json",
          "source_ref": "source-36f81ce7708a40a0"
        }
      ]
    },
    {
      "id": "census-tiger2024-road-v1-0:los-angeles",
      "city_slug": "los-angeles",
      "status": "reviewed",
      "scope": "functional-urban-area",
      "boundary_kind": "official-metropolitan-statistical-area",
      "authority": "U.S. Census Bureau / OMB",
      "source_geography_id": "31080",
      "source_name": "Los Angeles-Long Beach-Anaheim, CA",
      "boundary_vintage": "2024-01-01",
      "geography_edition": "OMB July2023 / TIGER/Line2024",
      "version": "census-tiger2024-road-v1.0.0",
      "source_frame_ref": "road-2024-los-angeles-native-boundary",
      "original_source_frame_ref": "road-2024-tiger-archive-manifest",
      "coordinate_source_frame_ref": "road-2024-geometry-proof",
      "crosswalk_method": "Complete OMB county set/native CBSA identity and unique point intersection under named non-ballpark4m NAD83/WGS84 adapter; source county compatibility separately reviewed.",
      "crosswalk": {
        "city_slug": "los-angeles",
        "reference_point": {
          "source_crs": "EPSG:4326",
          "longitude": -118.2437,
          "latitude": 34.0522,
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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)",
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          "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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        },
        "county_membership_population_frame": {
          "id": "road-2024-los-angeles-county-membership-population",
          "url": "/data/source-frames/road-2024-los-angeles-county-membership-population.json",
          "sha256": "04a148d8ac28e2cd9bdefd5eb002ec7ab1f9e4a6d9f72f88e2377c34bce27853"
        },
        "county_fips": [
          "06037",
          "06059"
        ],
        "geographic_change_review": {
          "id": "road-2024-geographic-change-review",
          "url": "/data/source-frames/road-2024-geographic-change-review.json",
          "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
        }
      },
      "reviewed_at": "2026-10-27",
      "scoring_approved": true,
      "policy_decision_ref": "road-motor-traffic-2024-research-v1-0",
      "analytical_area_id": "us-omb2023-cbsa:31080",
      "shared_with": [],
      "source_record_ref": "Original CBSA31080; OMB List1 county set; TIGER native record732",
      "approved_protocol_refs": [
        "civometra.road-deaths.measurement@1.0.0"
      ],
      "boundary_label": "Los Angeles-Long Beach-Anaheim, CA · OMB2023 MSA / Jan2024 native boundaries",
      "review_scope": "Road-only protocol permission, no PM/eFUA equivalence.",
      "exact_geometry": {
        "archive_url": "/data/source-frames/road-2024-los-angeles-native-boundary.json",
        "archive_sha256": "4da9aac198b5262bb6084c71ff92049594d92b556af857c3ddabe6f753fe3cef",
        "original_archive_manifest_ref": "road-2024-tiger-archive-manifest",
        "original_archive_sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
        "native_crs": "EPSG:4269",
        "native_dbf_record_number": 732,
        "native_shp_record_number": 732,
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        "native_geoidfq": "310M700US31080",
        "source_boundary_reference_date": "2024-01-01",
        "simplified": false,
        "reprojected": false,
        "clipped": false
      },
      "geography_ref": "census-tiger2024-road-v1-0:los-angeles",
      "geography_type_required": "harmonized-urban-area",
      "notice": "Scoped protocol permissions can repeat one unchanged physical boundary. Counts distinguish reviewed entries from unique destinations and analytical areas. Frozen 2015 estimated areas are not current observed commuting zones or 2025 urban centres.",
      "registry_url": "https://bestcitytolive.com/api/v1/scoring-geographies.json",
      "source_frames": [
        {
          "id": "road-2024-los-angeles-native-boundary",
          "archive_url": "/data/source-frames/road-2024-los-angeles-native-boundary.json",
          "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"
          ],
          "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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-los-angeles-native-boundary.json",
          "source_ref": "source-36f81ce7708a40a0"
        },
        {
          "id": "road-2024-tiger-archive-manifest",
          "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0",
          "source_urls": [
            "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",
          "retrieved_at": "2026-10-27T00:15:17.185451+00:00",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "source_ref": "source-2d65d60c9b1cef68"
        },
        {
          "id": "road-2024-geometry-proof",
          "archive_url": "/data/source-frames/road-2024-geometry-source-proof.json",
          "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6",
          "source_urls": [
            "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-geometry-source-proof.json",
          "source_ref": "source-36f81ce7708a40a0"
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      ]
    },
    {
      "id": "census-tiger2024-road-v1-0:chicago",
      "city_slug": "chicago",
      "status": "reviewed",
      "scope": "functional-urban-area",
      "boundary_kind": "official-metropolitan-statistical-area",
      "authority": "U.S. Census Bureau / OMB",
      "source_geography_id": "16980",
      "source_name": "Chicago-Naperville-Elgin, IL-IN",
      "boundary_vintage": "2024-01-01",
      "geography_edition": "OMB July2023 / TIGER/Line2024",
      "version": "census-tiger2024-road-v1.0.0",
      "source_frame_ref": "road-2024-chicago-native-boundary",
      "original_source_frame_ref": "road-2024-tiger-archive-manifest",
      "coordinate_source_frame_ref": "road-2024-geometry-proof",
      "crosswalk_method": "Complete OMB county set/native CBSA identity and unique point intersection under named non-ballpark4m NAD83/WGS84 adapter; source county compatibility separately reviewed.",
      "crosswalk": {
        "city_slug": "chicago",
        "reference_point": {
          "source_crs": "EPSG:4326",
          "longitude": -87.6298,
          "latitude": 41.8781,
          "coordinate_epoch": null
        },
        "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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          "native_matches": [
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          "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"
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        },
        "county_membership_population_frame": {
          "id": "road-2024-chicago-county-membership-population",
          "url": "/data/source-frames/road-2024-chicago-county-membership-population.json",
          "sha256": "58a92371278879ecc4d9e62f96829826d0877cdb31e79b7d16db6b872380a00d"
        },
        "county_fips": [
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          "17037",
          "17043",
          "17063",
          "17089",
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          "17097",
          "17111",
          "17197",
          "18073",
          "18089",
          "18111",
          "18127"
        ],
        "geographic_change_review": {
          "id": "road-2024-geographic-change-review",
          "url": "/data/source-frames/road-2024-geographic-change-review.json",
          "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
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      },
      "reviewed_at": "2026-10-27",
      "scoring_approved": true,
      "policy_decision_ref": "road-motor-traffic-2024-research-v1-0",
      "analytical_area_id": "us-omb2023-cbsa:16980",
      "shared_with": [],
      "source_record_ref": "Original CBSA16980; OMB List1 county set; TIGER native record203",
      "approved_protocol_refs": [
        "civometra.road-deaths.measurement@1.0.0"
      ],
      "boundary_label": "Chicago-Naperville-Elgin, IL-IN · OMB2023 MSA / Jan2024 native boundaries",
      "review_scope": "Road-only protocol permission, no PM/eFUA equivalence.",
      "exact_geometry": {
        "archive_url": "/data/source-frames/road-2024-chicago-native-boundary.json",
        "archive_sha256": "ea466f700acde81a0566a608512ce81c610db5ad7e24e667f0c29191a6b68235",
        "original_archive_manifest_ref": "road-2024-tiger-archive-manifest",
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        "native_crs": "EPSG:4269",
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        "native_geoidfq": "310M700US16980",
        "source_boundary_reference_date": "2024-01-01",
        "simplified": false,
        "reprojected": false,
        "clipped": false
      },
      "geography_ref": "census-tiger2024-road-v1-0:chicago",
      "geography_type_required": "harmonized-urban-area",
      "notice": "Scoped protocol permissions can repeat one unchanged physical boundary. Counts distinguish reviewed entries from unique destinations and analytical areas. Frozen 2015 estimated areas are not current observed commuting zones or 2025 urban centres.",
      "registry_url": "https://bestcitytolive.com/api/v1/scoring-geographies.json",
      "source_frames": [
        {
          "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"
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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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-chicago-native-boundary.json",
          "source_ref": "source-36f81ce7708a40a0"
        },
        {
          "id": "road-2024-tiger-archive-manifest",
          "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0",
          "source_urls": [
            "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",
          "retrieved_at": "2026-10-27T00:15:17.185451+00:00",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "source_ref": "source-2d65d60c9b1cef68"
        },
        {
          "id": "road-2024-geometry-proof",
          "archive_url": "/data/source-frames/road-2024-geometry-source-proof.json",
          "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6",
          "source_urls": [
            "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-geometry-source-proof.json",
          "source_ref": "source-36f81ce7708a40a0"
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      ]
    },
    {
      "id": "census-tiger2024-road-v1-0:boston",
      "city_slug": "boston",
      "status": "reviewed",
      "scope": "functional-urban-area",
      "boundary_kind": "official-metropolitan-statistical-area",
      "authority": "U.S. Census Bureau / OMB",
      "source_geography_id": "14460",
      "source_name": "Boston-Cambridge-Newton, MA-NH",
      "boundary_vintage": "2024-01-01",
      "geography_edition": "OMB July2023 / TIGER/Line2024",
      "version": "census-tiger2024-road-v1.0.0",
      "source_frame_ref": "road-2024-boston-native-boundary",
      "original_source_frame_ref": "road-2024-tiger-archive-manifest",
      "coordinate_source_frame_ref": "road-2024-geometry-proof",
      "crosswalk_method": "Complete OMB county set/native CBSA identity and unique point intersection under named non-ballpark4m NAD83/WGS84 adapter; source county compatibility separately reviewed.",
      "crosswalk": {
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        "reference_point": {
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          "longitude": -71.0589,
          "latitude": 42.3601,
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        },
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          "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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        },
        "county_membership_population_frame": {
          "id": "road-2024-boston-county-membership-population",
          "url": "/data/source-frames/road-2024-boston-county-membership-population.json",
          "sha256": "33aebaf168d8ad0c8860c7de62dbdba0d51a5638e10287f1a4f21064ae354355"
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          "25023",
          "25025",
          "33015",
          "33017"
        ],
        "geographic_change_review": {
          "id": "road-2024-geographic-change-review",
          "url": "/data/source-frames/road-2024-geographic-change-review.json",
          "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
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      },
      "reviewed_at": "2026-10-27",
      "scoring_approved": true,
      "policy_decision_ref": "road-motor-traffic-2024-research-v1-0",
      "analytical_area_id": "us-omb2023-cbsa:14460",
      "shared_with": [],
      "source_record_ref": "Original CBSA14460; OMB List1 county set; TIGER native record121",
      "approved_protocol_refs": [
        "civometra.road-deaths.measurement@1.0.0"
      ],
      "boundary_label": "Boston-Cambridge-Newton, MA-NH · OMB2023 MSA / Jan2024 native boundaries",
      "review_scope": "Road-only protocol permission, no PM/eFUA equivalence.",
      "exact_geometry": {
        "archive_url": "/data/source-frames/road-2024-boston-native-boundary.json",
        "archive_sha256": "b0ecf7cf451ac1d8756462a1a517311e0b5c801b18cdf90bf558aaac20c9fde1",
        "original_archive_manifest_ref": "road-2024-tiger-archive-manifest",
        "original_archive_sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
        "native_crs": "EPSG:4269",
        "native_dbf_record_number": 121,
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        "source_boundary_reference_date": "2024-01-01",
        "simplified": false,
        "reprojected": false,
        "clipped": false
      },
      "geography_ref": "census-tiger2024-road-v1-0:boston",
      "geography_type_required": "harmonized-urban-area",
      "notice": "Scoped protocol permissions can repeat one unchanged physical boundary. Counts distinguish reviewed entries from unique destinations and analytical areas. Frozen 2015 estimated areas are not current observed commuting zones or 2025 urban centres.",
      "registry_url": "https://bestcitytolive.com/api/v1/scoring-geographies.json",
      "source_frames": [
        {
          "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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-boston-native-boundary.json",
          "source_ref": "source-36f81ce7708a40a0"
        },
        {
          "id": "road-2024-tiger-archive-manifest",
          "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0",
          "source_urls": [
            "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",
          "retrieved_at": "2026-10-27T00:15:17.185451+00:00",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "source_ref": "source-2d65d60c9b1cef68"
        },
        {
          "id": "road-2024-geometry-proof",
          "archive_url": "/data/source-frames/road-2024-geometry-source-proof.json",
          "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6",
          "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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-geometry-source-proof.json",
          "source_ref": "source-36f81ce7708a40a0"
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      ]
    },
    {
      "id": "census-tiger2024-road-v1-0:washington-dc",
      "city_slug": "washington-dc",
      "status": "reviewed",
      "scope": "functional-urban-area",
      "boundary_kind": "official-metropolitan-statistical-area",
      "authority": "U.S. Census Bureau / OMB",
      "source_geography_id": "47900",
      "source_name": "Washington-Arlington-Alexandria, DC-VA-MD-WV",
      "boundary_vintage": "2024-01-01",
      "geography_edition": "OMB July2023 / TIGER/Line2024",
      "version": "census-tiger2024-road-v1.0.0",
      "source_frame_ref": "road-2024-washington-dc-native-boundary",
      "original_source_frame_ref": "road-2024-tiger-archive-manifest",
      "coordinate_source_frame_ref": "road-2024-geometry-proof",
      "crosswalk_method": "Complete OMB county set/native CBSA identity and unique point intersection under named non-ballpark4m NAD83/WGS84 adapter; source county compatibility separately reviewed.",
      "crosswalk": {
        "city_slug": "washington-dc",
        "reference_point": {
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          "longitude": -77.0369,
          "latitude": 38.9072,
          "coordinate_epoch": null
        },
        "point_adapter": {
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          "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
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          "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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        },
        "county_membership_population_frame": {
          "id": "road-2024-washington-dc-county-membership-population",
          "url": "/data/source-frames/road-2024-washington-dc-county-membership-population.json",
          "sha256": "8fcbe9e141daab0dcd5891bf0b071e3389f75cf1d553e5099e63cfc438f9f173"
        },
        "county_fips": [
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          "51061",
          "51107",
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        ],
        "geographic_change_review": {
          "id": "road-2024-geographic-change-review",
          "url": "/data/source-frames/road-2024-geographic-change-review.json",
          "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
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      },
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      "scoring_approved": true,
      "policy_decision_ref": "road-motor-traffic-2024-research-v1-0",
      "analytical_area_id": "us-omb2023-cbsa:47900",
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      "approved_protocol_refs": [
        "civometra.road-deaths.measurement@1.0.0"
      ],
      "boundary_label": "Washington-Arlington-Alexandria, DC-VA-MD-WV · OMB2023 MSA / Jan2024 native boundaries",
      "review_scope": "Road-only protocol permission, no PM/eFUA equivalence.",
      "exact_geometry": {
        "archive_url": "/data/source-frames/road-2024-washington-dc-native-boundary.json",
        "archive_sha256": "a66806f4c4ab8dc539816f3649de4e274f625f82b30ade0f6c08f0ecfe3d5ccf",
        "original_archive_manifest_ref": "road-2024-tiger-archive-manifest",
        "original_archive_sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
        "native_crs": "EPSG:4269",
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        "native_geoidfq": "310M700US47900",
        "source_boundary_reference_date": "2024-01-01",
        "simplified": false,
        "reprojected": false,
        "clipped": false
      },
      "geography_ref": "census-tiger2024-road-v1-0:washington-dc",
      "geography_type_required": "harmonized-urban-area",
      "notice": "Scoped protocol permissions can repeat one unchanged physical boundary. Counts distinguish reviewed entries from unique destinations and analytical areas. Frozen 2015 estimated areas are not current observed commuting zones or 2025 urban centres.",
      "registry_url": "https://bestcitytolive.com/api/v1/scoring-geographies.json",
      "source_frames": [
        {
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          "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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-washington-dc-native-boundary.json",
          "source_ref": "source-36f81ce7708a40a0"
        },
        {
          "id": "road-2024-tiger-archive-manifest",
          "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0",
          "source_urls": [
            "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",
          "retrieved_at": "2026-10-27T00:15:17.185451+00:00",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "source_ref": "source-2d65d60c9b1cef68"
        },
        {
          "id": "road-2024-geometry-proof",
          "archive_url": "/data/source-frames/road-2024-geometry-source-proof.json",
          "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6",
          "source_urls": [
            "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-geometry-source-proof.json",
          "source_ref": "source-36f81ce7708a40a0"
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      ]
    },
    {
      "id": "census-tiger2024-road-v1-0:seattle",
      "city_slug": "seattle",
      "status": "reviewed",
      "scope": "functional-urban-area",
      "boundary_kind": "official-metropolitan-statistical-area",
      "authority": "U.S. Census Bureau / OMB",
      "source_geography_id": "42660",
      "source_name": "Seattle-Tacoma-Bellevue, WA",
      "boundary_vintage": "2024-01-01",
      "geography_edition": "OMB July2023 / TIGER/Line2024",
      "version": "census-tiger2024-road-v1.0.0",
      "source_frame_ref": "road-2024-seattle-native-boundary",
      "original_source_frame_ref": "road-2024-tiger-archive-manifest",
      "coordinate_source_frame_ref": "road-2024-geometry-proof",
      "crosswalk_method": "Complete OMB county set/native CBSA identity and unique point intersection under named non-ballpark4m NAD83/WGS84 adapter; source county compatibility separately reviewed.",
      "crosswalk": {
        "city_slug": "seattle",
        "reference_point": {
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          "longitude": -122.3321,
          "latitude": 47.6062,
          "coordinate_epoch": null
        },
        "point_adapter": {
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          "description": "axis order change (2D) + Inverse of NAD83 to WGS 84 (1) + axis order change (2D)",
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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"
          }
        },
        "county_membership_population_frame": {
          "id": "road-2024-seattle-county-membership-population",
          "url": "/data/source-frames/road-2024-seattle-county-membership-population.json",
          "sha256": "a7f1ae06c9ab85f7312aa640fdd3491c011e02338609c8b42bc6c05562fe635f"
        },
        "county_fips": [
          "53033",
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        ],
        "geographic_change_review": {
          "id": "road-2024-geographic-change-review",
          "url": "/data/source-frames/road-2024-geographic-change-review.json",
          "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3"
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      },
      "reviewed_at": "2026-10-27",
      "scoring_approved": true,
      "policy_decision_ref": "road-motor-traffic-2024-research-v1-0",
      "analytical_area_id": "us-omb2023-cbsa:42660",
      "shared_with": [],
      "source_record_ref": "Original CBSA42660; OMB List1 county set; TIGER native record251",
      "approved_protocol_refs": [
        "civometra.road-deaths.measurement@1.0.0"
      ],
      "boundary_label": "Seattle-Tacoma-Bellevue, WA · OMB2023 MSA / Jan2024 native boundaries",
      "review_scope": "Road-only protocol permission, no PM/eFUA equivalence.",
      "exact_geometry": {
        "archive_url": "/data/source-frames/road-2024-seattle-native-boundary.json",
        "archive_sha256": "6e7e869b9885e9abcea50ea117e34dbab98c1dd7b67a251310a0abe4f916138a",
        "original_archive_manifest_ref": "road-2024-tiger-archive-manifest",
        "original_archive_sha256": "ea2f40fcd9ecf46663da798e2e524766d37d6a802d760cd50c6629cfb861e54e",
        "native_crs": "EPSG:4269",
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        "native_geoidfq": "310M700US42660",
        "source_boundary_reference_date": "2024-01-01",
        "simplified": false,
        "reprojected": false,
        "clipped": false
      },
      "geography_ref": "census-tiger2024-road-v1-0:seattle",
      "geography_type_required": "harmonized-urban-area",
      "notice": "Scoped protocol permissions can repeat one unchanged physical boundary. Counts distinguish reviewed entries from unique destinations and analytical areas. Frozen 2015 estimated areas are not current observed commuting zones or 2025 urban centres.",
      "registry_url": "https://bestcitytolive.com/api/v1/scoring-geographies.json",
      "source_frames": [
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          "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"
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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",
          "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-seattle-native-boundary.json",
          "source_ref": "source-36f81ce7708a40a0"
        },
        {
          "id": "road-2024-tiger-archive-manifest",
          "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
          "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0",
          "source_urls": [
            "https://www2.census.gov/geo/tiger/TIGER2024/CBSA/tl_2024_us_cbsa.zip"
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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.",
      "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
      "retrieved_at": "2026-10-27T00:10:42.996079+00:00",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/fars2024-national-csv-5112727a8c0d.part-002.bin",
      "source_ref": "source-36f81ce7708a40a0"
    },
    {
      "id": "road-2024-fars-archive-manifest",
      "archive_url": "/data/source-frames/fars2024-national-csv-5112727a8c0d.archive-manifest.json",
      "sha256": "cb9c413120d6e661e4173f740128cbf99ee54163c951a50a041dfa816ff3a79d",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.zip"
      ],
      "licence": "NHTSA public U.S. Government information; distribution/copying permitted",
      "licence_url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
      "reuse_review": "permitted-with-attribution",
      "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.",
      "downstream_conditions_url": "https://www.nhtsa.gov/about-nhtsa/terms-use",
      "retrieved_at": "2026-10-27T00:10:42.996079+00:00",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/fars2024-national-csv-5112727a8c0d.archive-manifest.json",
      "source_ref": "source-36f81ce7708a40a0"
    },
    {
      "id": "road-2024-tiger-part-001",
      "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-001.bin",
      "sha256": "593dd43be19c182f2de18bc1e2a4be7e987a0dc128ebbae233b5934d5f46358b",
      "source_urls": [
        "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",
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-001.bin",
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    {
      "id": "road-2024-tiger-part-002",
      "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-002.bin",
      "sha256": "6b72e011db8669ed0181c977c4edd5f60c4edef875366e1dae80386dc45653f1",
      "source_urls": [
        "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",
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.part-002.bin",
      "source_ref": "source-2d65d60c9b1cef68"
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    {
      "id": "road-2024-tiger-archive-manifest",
      "archive_url": "/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
      "sha256": "d79352ed52578eed9fb4113a8ae7b29fb0de66429153abf35be488f97590c7e0",
      "source_urls": [
        "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",
      "retrieved_at": "2026-10-27T00:15:17.185451+00:00",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/tiger2024-us-cbsa-ea2f40fcd9ec.archive-manifest.json",
      "source_ref": "source-2d65d60c9b1cef68"
    },
    {
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      "sha256": "952c4b1e78acbb54e6ec9412434b7602fedacbf021736351a63c181bdb753629",
      "source_urls": [
        "https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx"
      ],
      "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": "2026-10-27T00:13:09.301670+00:00",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-census-list1_2023.xlsx",
      "source_ref": "source-b2291e17aab05222"
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    {
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      "archive_url": "/data/source-frames/road-2024-cbsa-est2024-alldata.csv",
      "sha256": "8bb9e59c3193ce1fc4f1bd08308fe435b2840d0a80a521f51db99b4185d28ea0",
      "source_urls": [
        "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",
      "retrieved_at": "2026-10-27T00:18:00.601312+00:00",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-cbsa-est2024-alldata.csv",
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      "sha256": "bf6fad83753456413d047d1acebeb434bd067eba9d6d0be62b3f737ad1301852",
      "source_urls": [
        "https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/metro/totals/cbsa-est2025-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",
      "retrieved_at": "2026-10-27T00:13:09.598790+00:00",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-cbsa-est2025-alldata.csv",
      "source_ref": "source-65c9828d181d7776"
    },
    {
      "id": "road-2024-county-change-2024",
      "archive_url": "/data/source-frames/road-2024-national_gcn_2024.txt",
      "sha256": "4a72e252bae706f1abaf927dcad334a4c127a4e85d6e01f327f7be3c200c6fb3",
      "source_urls": [
        "https://www2.census.gov/geo/docs/reference/bndrychange/national_gcn_2024.txt"
      ],
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-national_gcn_2024.txt",
      "source_ref": "source-b0867c1ffa68fb7a"
    },
    {
      "id": "road-2024-county-change-2025",
      "archive_url": "/data/source-frames/road-2024-national_gcn_2025.txt",
      "sha256": "886c1061707f53b9e4f8a9cecae72dec0d3da4ccc16f53ff5bc71b156eb0189f",
      "source_urls": [
        "https://www2.census.gov/geo/docs/reference/bndrychange/national_gcn_2025.txt"
      ],
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-national_gcn_2025.txt",
      "source_ref": "source-74fc3a5fd9147890"
    },
    {
      "id": "road-2024-geometry-proof",
      "archive_url": "/data/source-frames/road-2024-geometry-source-proof.json",
      "sha256": "baebb0379b61dde8c8ed86562037da6218ec978800824c20ee9fc5249f63e7c6",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-geometry-source-proof.json",
      "source_ref": "source-36f81ce7708a40a0"
    },
    {
      "id": "road-2024-geographic-change-review",
      "archive_url": "/data/source-frames/road-2024-geographic-change-review.json",
      "sha256": "aa0ed0c78ac634d012222daedd2e5752769a8c3951eb08360654de80ebe023a3",
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-geographic-change-review.json",
      "source_ref": "source-36f81ce7708a40a0"
    },
    {
      "id": "road-2024-independent-proof",
      "archive_url": "/data/source-frames/road-2024-independent-proof.json",
      "sha256": "3cbfd334d95ca7ac065f51dbd08266e52db17015190ae1dfa70b0ed7f59adefb",
      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-independent-proof.json",
      "source_ref": "source-36f81ce7708a40a0"
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    {
      "id": "road-2024-rights",
      "archive_url": "/data/source-frames/road-2024-rights-review.json",
      "sha256": "b555236b9483e4dc1b626debbda65c8d126062a63a5ac293aa0d63c5650982e3",
      "source_urls": [
        "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalCSV.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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-rights-review.json",
      "source_ref": "source-36f81ce7708a40a0"
    },
    {
      "id": "road-2024-initial-scope-decision",
      "archive_url": "/data/source-frames/road-2024-initial-scope-decision.json",
      "sha256": "87d49103c915bb4ee636b0fb94921440ec7343313986ad0d8390a607465fd2fc",
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-initial-scope-decision.json",
      "source_ref": "source-36f81ce7708a40a0"
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      "archive_url": "/data/source-frames/road-2024-source-facts.json",
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-source-facts.json",
      "source_ref": "source-36f81ce7708a40a0"
    },
    {
      "id": "road-2024-new-york-city-county-membership-population",
      "archive_url": "/data/source-frames/road-2024-new-york-city-county-membership-population.json",
      "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",
        "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-new-york-city-county-membership-population.json",
      "source_ref": "source-36f81ce7708a40a0"
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      "archive_url": "/data/source-frames/road-2024-new-york-city-native-boundary.json",
      "sha256": "59cb0ca28ee2f9ad542725ef808790b89558f5d5b88ef9babdf49f6c9d65c1b0",
      "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",
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-new-york-city-native-boundary.json",
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-new-york-city-fatal-persons.json",
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-new-york-city-fatal-crashes.json",
      "source_ref": "source-36f81ce7708a40a0"
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    {
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-san-francisco-county-membership-population.json",
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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",
        "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-san-francisco-native-boundary.json",
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      "sha256": "aabbfc5b855a3c1352e0ccb2877220f267ff29b0262873335d7fa5a60f111803",
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-san-francisco-fatal-persons.json",
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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",
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-san-francisco-fatal-crashes.json",
      "source_ref": "source-36f81ce7708a40a0"
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    {
      "id": "road-2024-los-angeles-county-membership-population",
      "archive_url": "/data/source-frames/road-2024-los-angeles-county-membership-population.json",
      "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",
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-los-angeles-county-membership-population.json",
      "source_ref": "source-36f81ce7708a40a0"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-los-angeles-native-boundary.json",
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-los-angeles-fatal-persons.json",
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-los-angeles-fatal-crashes.json",
      "source_ref": "source-36f81ce7708a40a0"
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    {
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      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-chicago-county-membership-population.json",
      "source_ref": "source-36f81ce7708a40a0"
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    {
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      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-chicago-native-boundary.json",
      "source_ref": "source-36f81ce7708a40a0"
    },
    {
      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-chicago-fatal-persons.json",
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      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-chicago-fatal-crashes.json",
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    {
      "id": "road-2024-boston-county-membership-population",
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      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-boston-county-membership-population.json",
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    {
      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-boston-native-boundary.json",
      "source_ref": "source-36f81ce7708a40a0"
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    {
      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-boston-fatal-persons.json",
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      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-boston-fatal-crashes.json",
      "source_ref": "source-36f81ce7708a40a0"
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    {
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      "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",
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        "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-washington-dc-county-membership-population.json",
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    {
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      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-washington-dc-native-boundary.json",
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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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-washington-dc-fatal-persons.json",
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-washington-dc-fatal-crashes.json",
      "source_ref": "source-36f81ce7708a40a0"
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    {
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      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-seattle-county-membership-population.json",
      "source_ref": "source-36f81ce7708a40a0"
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    {
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      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-seattle-native-boundary.json",
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    {
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      "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"
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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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-seattle-fatal-persons.json",
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    {
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      "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",
      "archive_absolute_url": "https://bestcitytolive.com/data/source-frames/road-2024-seattle-fatal-crashes.json",
      "source_ref": "source-36f81ce7708a40a0"
    }
  ],
  "unique_destinations": 63,
  "scoped_geography_entries": 145,
  "count": 145,
  "links": {
    "raw_registry": "https://bestcitytolive.com/data/scoring-geographies.json",
    "candidates": "https://bestcitytolive.com/api/v1/geography-candidates.json",
    "observations": "https://bestcitytolive.com/api/v1/index-observations.json"
  }
}