Construct a travel time matrix to or from all stops in a 'GTFS' feed from or to to all points in a street network.

Construct a travel time matrix to or from all stops in a 'GTFS' feed from or to to all points in a street network.

Usage

m4ra_times_to_gtfs_stops(graph, gtfs, city, from = NULL, graph_to_gtfs = TRUE)

Arguments

graph

A dodgr network returned from the weight_streetnet function using a network obtained with the osmdata osmdata_sc function.

gtfs

A 'GTFS' feed extracted with the gtfsrouter function, 'extract_gtfs'.

city

Name of city being analysed; used to name and extract cache files.

from

Vector or matrix of points from which route distances are to be calculated. If not given, times are calculated from all points in the network. Only has any effect is graph_to_gtfs is TRUE.

graph_to_gtfs

If TRUE, generate matrix of times from all network junctions in 'graph' (or all from points if specified) to each stop in the 'gtfs$stops' table; otherwise generate matrix of times from all stops to all network junctions.

Value

An integer matrix of fastest travel times either between all 'gtfs' stops and all network points (for 'graph_to_gtfs = FALSE'), or the other way around (for 'graph_to_gtfs = TRUE').

See also

Other prep: m4ra_parking(), m4ra_prepare_data()