Only stop_times, stops, routes, services (in calendar and calendar_dates), shapes, frequencies and transfers belonging to one of those trips are kept.
filter_feed_by_stops(gtfs_obj, stop_ids = NULL, stop_names = NULL)
vector with stop_ids. You can either provide stop_ids or stop_names
vector with stop_names (will be converted to stop_ids)
tidygtfs object with filtered tables
The returned gtfs_obj likely contains more than just the stops given (i.e. all stops that belong to a trip passing the initial stop).