Extensions

GTFS is a community driven data format. Users can propose and vote on changes. For detailed information see the GTFS Schedule and GTFS Realtime amendment process.

Extensions that are currently in development can be found on MobilityData's roadmap.

Extension proposals can be found in the following places:

• MobilityData maintains a portal with a list of GTFS extension proposals. The roadmap is based on their members' prioritization. You can contribute ideas or extensions via the portal.
• TransitWiki.org contains a list GTFS extension projects.

For more information, contact specifications@mobilitydata.org