get_route_frequency {tidytransit}

Get Route Frequency

Description

Calculate the number of departures and mean headways for routes within a given timespan and for given service_ids.

Usage

get_route_frequency(
  gtfs_obj,
  start_time = "06:00:00",
  end_time = "22:00:00",
  service_ids = NULL
)

Arguments

gtfs_obj

gtfs feed (tidygtfs object)

start_time

analysis start time, can be given as "HH:MM:SS", hms object or numeric value in seconds.

end_time

analysis perdiod end time, can be given as "HH:MM:SS", hms object or numeric value in seconds.

service_ids

A set of service_ids from the calendar dataframe identifying a particular service id. If not provided, the service_id with the most departures is used.

Value

a dataframe of routes with variables or headway/frequency in seconds for a route within a given time frame

Note

Some GTFS feeds contain a frequency data frame already. Consider using this instead, as it will be more accurate than what tidytransit calculates.

Examples

data(gtfs_duke)
routes_frequency <- get_route_frequency(gtfs_duke)
x <- order(routes_frequency$median_headways)
head(routes_frequency[x,])