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Filter accident data by categories

filter_accident_data.Rd

These functions filter accident data based on the specified categories.

Usage

filter_accident_type(data, accident_type)

filter_road_shape(data, road_shape)

Arguments

data

A accident_data object.

accident_type

A vector of specifying the accident type to filter. Must be one of the following values:

  • "vehicle_to_pedestrian": Vehicle-to-pedestrian collision

  • "vehicle_to_vehicle" : Vehicle-to-vehicle collision

  • "single_vehicle" : Single-vehicle accident

  • "train" : Train accident

road_shape

A vector of specifying the road type to filter. Must be one of the following values:

  • "intersection_roundabout" : Roundabout intersection

  • "intersection_other" : Regular intersection

  • "near_intersection_roundabout": Area near a roundabout

  • "near_intersection_other" : Area near an intersection

  • "tunnel" : Tunnel

  • "bridge" : Bridge

  • "curve" : Curve or bend in the road

  • "single_road" : Straight single road

  • "railroad_crossing_type1" : Type 1 railroad crossing

  • "railroad_crossing_type3" : Type 3 railroad crossing

  • "railroad_crossing_type4" : Type 4 railroad crossing

  • "general_traffic_area" : General traffic area

Value

A filtered accident_data object.

Examples

if (FALSE) { # \dontrun{
# Extract accidents where vehicle collided with pedestrian
vehicle_to_pedestrian_collisions <- data %>%
  filter_accident_type("vehicle_to_pedestrian")

# Extract accidents involving vehicle-to-vehicle collisions
vehicle_to_pedestrian_collisions <- data %>%
  filter_accident_type("vehicle_to_pedestrian")

# Extract accidents that occured on curved roads
curved_road_accidents <- data %>%
  filter_road_shape("curve")
} # }