{
  "data_source": "NHTSA Fatality Analysis Reporting System (FARS), National CSV downloads, 2018-2024",
  "data_pulled": "2026-08-30",
  "region": "Northern Virginia",
  "jurisdictions_covered": [
    "Arlington County",
    "Alexandria city",
    "Fairfax County",
    "Fairfax city",
    "Falls Church city"
  ],
  "date_range": "2018-01-01 to 2024-12-31",
  "preliminary_years": [
    2024
  ],
  "severity_filter": "Fatal crashes only. FARS records a crash when at least one person dies within 30 days.",
  "key_lookup_note": "Jurisdictions are keyed on the FARS COUNTY field, not CITY. Arlington County and most of Fairfax County are unincorporated and file CITY as \"not applicable\", so a city-keyed query returns nothing for them.",
  "totals": {
    "crashes": 405,
    "deaths": 428,
    "ped_deaths": 154,
    "bike_deaths": 4,
    "truck_crashes": 41,
    "truck_deaths": 43,
    "ped_share_pct": 36.0,
    "geocoded_points": 400,
    "geocoded_pct": 98.8,
    "repeat_locations": 28
  },
  "top_corridor": "I-495",
  "top_corridor_deaths": 40,
  "us1": {
    "route": "US-1",
    "route_name": "Richmond Hwy",
    "label": "US-1 Richmond Hwy",
    "crashes": 29,
    "deaths": 29,
    "ped_deaths": 19,
    "bike_deaths": 0,
    "truck_crashes": 1,
    "truck_deaths": 1,
    "ped_share_pct": 65.5,
    "jurisdictions": [
      "Alexandria city",
      "Fairfax County"
    ]
  },
  "night_ped_share_pct": 77.3
}