gtfs_transfer_table {gtfsrouter}

gtfs_transfer_table

Description

Construct a transfer table for a GTFS feed.

Usage

gtfs_transfer_table(
  gtfs,
  d_limit = 200,
  min_transfer_time = 120,
  network = NULL,
  network_times = FALSE,
  quiet = FALSE
)

Arguments

gtfs

A GTFS feed obtained from the extract_gtfs function.

d_limit

Upper straight-line distance limit in metres for transfers.

min_transfer_time

Minimum time in seconds for transfers; all values below this will be replaced with this value, particularly all those defining in-place transfers where stop longitudes and latitudes remain identical.

network

Optional Open Street Map representation of the street network encompassed by the GTFS feed (see Examples).

network_times

If TRUE, transfer times are calculated by routing throughout the underlying street network. If this is not provided as the net parameter, it will be automatically downloaded. If a network, is provided, this parameter is automatically set to TRUE.

quiet

Set to TRUE to suppress screen messages

Value

Modified version of the gtfs input with additional transfers table.

See Also

Other augment: frequencies_to_stop_times()

Examples

# Examples must be run on single thread only:
nthr <- data.table::setDTthreads (1)

berlin_gtfs_to_zip ()
f <- file.path (tempdir (), "vbb.zip")
g <- extract_gtfs (f, quiet = TRUE)
g <- gtfs_transfer_table (g, d_limit = 200)
# g$transfers then has fewer rows than original, because original transfer
# table contains duplicated rows.

data.table::setDTthreads (nthr)