Whether any realtime information applies to this trip.
Optionalrt_Most recent realtime load time (unix seconds) among this trip's updates.
Optionalschedule_Trip-level schedule relationship from the realtime feed.
The service date the schedule was resolved for (YYYYMMDD).
Resolved stop times ordered by stop_sequence.
IANA timezone used for epoch computation.
Optionaltrip_Trip-level delay in seconds (TripUpdate.delay), when the feed provides one.
Trip is canceled in the realtime feed.