If this is your first time dealing with transit data, you might find these links useful:
- GTFS - A GTFS feed is a group of text files that contains infrequently changing transit data, like stops, routes, trips, and other schedule data. Transit agencies typically update their GTFS feed every few months.
- GTFS Realtime - GTFS Realtime consists of three binary files that contain realtime vehicle positions, realtime arrival information, and service alerts. Transit agencies typically update these files every minute.
- World Bank - "Intro. to GTFS" online course - A free, online, self-paced course for learning about GTFS and GTFS-realtime.
- Open Transit Data Toolkit - A series of lessons to help people utilize open transit data.
- MBTA GTFS Onboarding - An interactive tutorial created by MBTA for GTFS static. A stand-alone Docker image is available on GitHub as well as a hosted/no-install version of the Jupyter notebook.