GTFS Guides
Practical guides to help you understand transit feeds and GTFS data structures. Whether you're a transit planner, developer, or data enthusiast, these resources will help you work with GTFS data more effectively. Ready to explore a feed right now? Open the GTFS Viewer or the Map Viewer.
TransitLens Quick Start Guide
Get up and running with TransitLens. Load a GTFS feed, explore routes and stops, use the Inspector, apply filters, and analyze transit networks step by step.
Read guideHow to Read GTFS Data
Learn what GTFS is, explore the key files inside a feed, and understand how routes, trips, and stops connect to describe a transit network.
Read guideUnderstanding GTFS Calendars
Understand how calendar.txt and calendar_dates.txt define when transit services run, including regular schedules, exceptions, and holiday service.
Read guideGTFS Routes, Trips & Stops Explained
Dive into routes.txt, trips.txt, stops.txt, and shapes.txt — the core files that describe where transit vehicles go and how they get there.
Read guide