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Revision History

March 12, 2020

  • Updated the TripDescriptor description on the GTFS Realtime reference page.

February 26, 2015

  • Added experimental field direction_id to TripDescriptor (discussion).

January 30, 2015

  • Added Protocol Buffer extension namespace to all remaining GTFS-realtime messages that didn't already have one (such as FeedMessage and FeedEntity).

January 28, 2015

  • Added experimental field delay to TripUpdate (discussion).

January 16, 2015

  • Update description of TripDescriptor.start_time.

January 8, 2015

  • Defined experimental enum OccupancyStatus.
  • Added experimental field occupancy_status to VehiclePosition (discussion).

May 22, 2014

  • Updated description of ScheduleRelationship enum in StopTimeUpdate message (discussion).
  • Removed REPLACEMENT from ScheduleRelationship enum values in TripDescriptor message (discussion).

Oct 12, 2012

  • Added timestamp field to TripUpdate message.

May 30, 2012

  • Added specific details about Extensions to the specification.

November 30, 2011

  • Added Protocol Buffer extension namespace to key GTFS-realtime messages to facilitate writing extensions to the spec.

October 25, 2011

  • Updated documentation to clarify that alert, header_text and description_text are both plain-text values.

August 20, 2011

  • Updated documentation to clarify semantics of the TimeRange message.

August 22, 2011

  • Initial version.
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