Trips must have more than one stop to be usable.
[1] unusable_trip rule reference
| Code | unusable_trip |
|---|---|
| Standard | GTFS |
| Source | MobilityData canonical GTFS Schedule validator |
| Severity | WARNING |
| Category | semantic |
| Maturity | draft |
| Tags | mobilitydata, gtfs, semantic |
| Retrieved | 2026-06-12 |
| Reference | https://gtfs-validator.mobilitydata.org/rules.html#unusable_trip-rule |
