Turn GTFS into interstop speed matrix — gtfs_to_interstop

Creates a table record of every interstop (including geometry) and the speed of every trip along every interstop in a reference GTFS, for every service detailed in a target SSFS. This table (the interstop speed matrix) contains the data necessary to calibrate the speeds of the target SSFS. This function consists of the first half of the process in apply_gtfs_speeds_to_ssfs and is included for development purposes

Usage

gtfs_to_interstop_matrix(
  gtfs,
  ssfs,
  max_date = NULL,
  accepted_route_types = c(0, 3)
)

Arguments

gtfs: An object with class 'gtfs'
ssfs: A ssfs list
max_date: A date representing the maximum date range of services retained from the reference GTFS
accepted_route_types: Route types that can be used to build the reference speed matrix. By default, 0 (tramways) and 3 (buses).

Value

An interstop speed matrix table

Examples

# Create interstop speed matrix using a GTFS
interstop_matrix <- gtfs_to_interstop_matrix(
  gtfs = gtfs_rct,
  ssfs = ssfs_rct2
)
#> calculating interstop distances for GTFS