Fast trips can identify problems with the input data or conversion process. This function returns trip_ids for trips that exceed `maxspeed`.
gtfs_fast_trips(gtfs, maxspeed = 83, routes = TRUE)list of gtfs tables
the maximum allowed speed in metres per second default 83 m/s (about 185 mph the max speed of trains on HS1 line)
logical, do one trip per route, faster but may miss some trips
The function looks a straight line distance between each stop and detects the fastest segment of the journey. A common cause of errors is that a stop is in the wrong location so a bus can appear to teleport across the country in seconds.