unused_trip: GTFS validation rule (trips.txt) Warning
A trip's service_id is never active in any of the next 7 days from feed_start_date: the trip is currently unreachable.
What the rule checks
A trip's service_id is never active in any of the next 7 days from feed_start_date: the trip is currently unreachable.
Severity: warning
A warning marks data the specification allows but that looks doubtful, or recommended information that is missing. The GTFS can still be published, but riders may see the effect, so each case deserves a look.
Where it applies
The rule applies to trips.txt. This file describes each route's trips: their service, direction and shape.
Finding and correcting it
Open the GTFS in GTFS Express. Reading is free, and the validation, by the MobilityData validator and the rules of GTFS Express itself, lists the occurrences of unused_trip with the file and rows involved. The correction is made in a draft, by hand or from a brief, with the licence: the corrected GTFS is validated again before it is delivered, and the change can be undone.
In the MobilityData validator
The MobilityData GTFS validator uses the same code, unused_trip. Its documentation describes each rule: MobilityData validator rules.