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Read in STATS19 road safety data from .csv files downloaded.

Usage

read_casualties(
  year = NULL,
  filename = "",
  data_dir = get_data_directory(),
  format = TRUE
)

Arguments

year

Single year for which data are to be read

filename

Character string of the filename of the .csv to read, if this is given, type and years determine whether there is a target to read, otherwise disk scan would be needed.

data_dir

Where sets of downloaded data would be found.

format

Switch to return raw read from file, default is TRUE.

Details

The function returns a data frame, in which each record is a reported casualty in the STATS19 dataset.

Examples

# \donttest{
if(curl::has_internet()) {
dl_stats19(year = 2022, type = "casualty")
casualties = read_casualties(year = 2022)
}
#> Files identified: dft-road-casualty-statistics-casualty-2022.csv
#>    https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-2022.csv
#> Data already exists in data_dir, not downloading
#> Warning: The following named parsers don't match the column names: accident_severity, carriageway_hazards, date, day_of_week, did_police_officer_attend_scene_of_accident, first_road_class, first_road_number, junction_control, junction_detail, Latitude, light_conditions, local_authority_district, local_authority_highway, local_authority_ons_district, location_easting_osgr, location_northing_osgr, longitude, lsoa_of_accident_location, number_of_casualties, number_of_vehicles, pedestrian_crossing_human_control, pedestrian_crossing_physical_facilities, police_force, road_surface_conditions, road_type, second_road_class, second_road_number, special_conditions_at_site, speed_limit, time, trunk_road_flag, urban_or_rural_area, weather_conditions, vehicle_text, vehicle_type, age_band_of_driver, age_of_driver, age_of_vehicle, driver_home_area_type, driver_imd_decile, engine_capacity_cc, first_point_of_impact, generic_make_model, hit_object_in_carriageway, hit_object_off_carriageway, journey_purpose_of_driver, junction_location, propulsion_code, sex_of_driver, skidding_and_overturning, towing_and_articulation, vehicle_direction_from, vehicle_direction_to, vehicle_leaving_carriageway, vehicle_left_hand_drive, vehicle_location_restricted_lane, vehicle_manoeuvre
#> Warning: NAs introduced by coercion
# }