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
# }