{
  "source_url": "https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-2025.csv",
  "source_sha256": "633249567e95479a1c30b3f10b0a6271ced11684fb338d0b8b4054ca94b80aa6",
  "source_license": "Open Government Licence v3.0",
  "source_description": "2025 final validated, non-sensitive, police-reported personal-injury road collision records in Great Britain",
  "selection": "one stable collision-ID representative from each hashed diversity stratum; location fields excluded",
  "records": 30,
  "included_fields": [
    "collision_index",
    "collision_year",
    "collision_severity",
    "number_of_vehicles",
    "number_of_casualties",
    "first_road_class",
    "road_type",
    "speed_limit",
    "junction_detail",
    "junction_control",
    "second_road_class",
    "light_conditions",
    "weather_conditions",
    "road_surface_conditions",
    "special_conditions_at_site",
    "carriageway_hazards",
    "urban_or_rural_area"
  ],
  "excluded_sensitive_or_location_fields": [
    "location_easting_osgr",
    "location_northing_osgr",
    "longitude",
    "latitude",
    "lsoa_of_accident_location"
  ],
  "sample_sha256": "4678a1e8056f4f33ab3ce5bc0e978f59c8916d38409a9fb32dd0989f754e8129"
}