Has anyone tried using GTFS-realtime TripUpdates for frequency-based (exact_times=0) trips with OneBusAway?
We're interested in setting up TheTransitClock to take real-time vehicle positions from our campus shuttle system (USF Bull Runner) and generate a GTFS-rt TripUpdates feed compatible with OneBusAway so we can add it to the OneBusAway Tampa region (http://tampa.onebusaway.org/).
Here's our data:
Assuming TheTransitClock can generate this info, we need to know if OneBusAway properly handles frequency-based real-time updates or if that needs further work.
Note that "frequency-based" here means that the vehicle isn't scheduled at an exact time - instead, riders are told that vehicles will arrive approximately every X minutes (this is defined as exact_times=0 in GTFS frequencies.txt https://developers.google.com/transit/gtfs/reference/#frequenciestxt). This means that the expectation of the next arriving vehicle changes based on every arriving vehicle - if a vehicle just arrived, a rider would expect the next one to arrive in X minutes. Real-time information (GTFS-rt TripUpdates) reduces this window to an exact predicted arrival time.
A related question on TheTransitClock group for generating frequency-based GTFS-rt Trip Updates:
Sean Barbeau, Ph.D.
Center for Urban Transportation Research
University of South Florida