{
  "status": "principal_verified",
  "definition": "ACC_AUX.A_LT=1, reconciled exactly to case sets from VEH_AUX.A_BODY=6 in every year. Counts all deaths in those crashes, not only truck occupants.",
  "classification_source": {
    "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/Auxiliary_FARS_Files_Formats/Auxiliary_Formats.sas",
    "sha256": "2b0eb8bc0853c190b08868e0b54705c5318a96011a21d06921bcd41489210168"
  },
  "national_reference": "NHTSA Large Trucks: 2024 Data, DOT HS813816, Table1",
  "sources": [
    {
      "year": 2020,
      "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2020/National/FARS2020NationalAuxiliaryCSV.zip",
      "sha256": "80af9b7590bb28d1f9c2b79537d8b575caab90b800bfce382a1d55163625def1"
    },
    {
      "year": 2021,
      "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2021/National/FARS2021NationalAuxiliaryCSV.zip",
      "sha256": "2edca36bae8ea35ea2cf45d7fbf3cc2438315e8c8ca02fc320b8466fec5ecc40"
    },
    {
      "year": 2022,
      "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2022/National/FARS2022NationalAuxiliaryCSV.zip",
      "sha256": "04c80f9e72e442c1e1e0a9d4e6cdc3771ec1b3860a68587599ebb79e12a023b6"
    },
    {
      "year": 2023,
      "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2023/National/FARS2023NationalAuxiliaryCSV.zip",
      "sha256": "caeb7297778962f14af01ff12d99cc61077d2c9c82774df8262884d7fc34ee98"
    },
    {
      "year": 2024,
      "url": "https://static.nhtsa.gov/nhtsa/downloads/FARS/2024/National/FARS2024NationalAuxiliaryCSV.zip",
      "sha256": "dadddce5028dd405e9ead4a55c056eac1bd597465888ba142d07b310f5a4001a"
    }
  ],
  "checks": [
    {
      "year": 2020,
      "national_large_truck_vehicles": 4821,
      "factsheet_table1": 4821,
      "match": true,
      "national_truck_crashes": 4423,
      "vehicle_and_accident_case_sets_equal": true
    },
    {
      "year": 2021,
      "national_large_truck_vehicles": 5733,
      "factsheet_table1": 5733,
      "match": true,
      "national_truck_crashes": 5178,
      "vehicle_and_accident_case_sets_equal": true
    },
    {
      "year": 2022,
      "national_large_truck_vehicles": 5873,
      "factsheet_table1": 5873,
      "match": true,
      "national_truck_crashes": 5311,
      "vehicle_and_accident_case_sets_equal": true
    },
    {
      "year": 2023,
      "national_large_truck_vehicles": 5382,
      "factsheet_table1": 5382,
      "match": true,
      "national_truck_crashes": 4902,
      "vehicle_and_accident_case_sets_equal": true
    },
    {
      "year": 2024,
      "national_large_truck_vehicles": 5218,
      "factsheet_table1": 5218,
      "match": true,
      "national_truck_crashes": 4777,
      "vehicle_and_accident_case_sets_equal": true
    }
  ],
  "pooled": {
    "truck_involved_fatal_crashes": {
      "holiday_total": 31,
      "control_total": 158,
      "holiday_mean": 6.2,
      "control_mean": 7.9
    },
    "deaths_in_truck_involved_crashes": {
      "holiday_total": 34,
      "control_total": 182,
      "holiday_mean": 6.8,
      "control_mean": 9.1
    },
    "thursday_midnight_to_0559_truck_crashes": {
      "holiday_total": 8,
      "control_total": 7,
      "holiday_mean": 1.6,
      "control_mean": 0.35
    }
  }
}