Board packet · transit data quality · checked 2026-07-09
Dallas Area Rapid Transit (DART)
Grade F · 21.5 / 100
Down 0.4 points since 2026-07-08 (F to F).
What this grade measures
The quality of the schedule data this agency publishes for trip-planning apps: whether riders using Google Maps, Apple Maps, or Transit see current, correct, and complete information. It measures the data feed, not service quality or operations.
Progress this period
No newly cleared items this period. The score and trend above reflect where the feed stands today.
What needs attention next
Three improvements, in priority order, each sized so the board can see what it is approving:
Re-export with a validity window that reaches at least 60 days out.
Service data runs out in 10 day(s). When the calendar runs out, trip planners stop showing this agency. Fixing it now is calmer than after riders notice.
Estimated effort: One export setting.
Agencies here usually clear this within about 1 week (based on 61 observed fixes).
Review the rule documentation for 'trip_distance_exceeds_shape_distance' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
Trip distance exceeds shape distance (flagged by the MobilityData validator). See the linked rule for what this affects.
Estimated effort: Varies.
Re-generate shape distances in your export; flag to your vendor if it persists.
Some trips have stop times whose distances along the route go backwards. Apps can show buses jumping backwards or mis-order stops.
Estimated effort: Usually an export-tool fix, not hand editing.
Where this agency stands
Ahead of 2% of all tracked agencies, and ahead of 5% of large agencies nationwide.
Produced by the GTFS Scorecard, an open-source data quality tool. A data-quality read to support the board conversation, not an official compliance determination. Live scorecard: https://gtfsscorecard.org/agency/dallas-area-rapid-transit-dart/. Rubric v1.1, validator 8.0.1.