← Back to the full scorecard

Board packet · transit data quality · checked 2026-08-01

Sonoma County Transit (SCT)

Grade F · 56.0 / 100

Down 0.4 points since 2026-07-31 (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:

  1. Re-export with a validity window that reaches at least 60 days out.

    Service data runs out in 7 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.

  2. Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.

    1117 of 1117 stops don't say whether a wheelchair user can board there. Riders who use wheelchairs can't plan a trip when accessibility is marked 'unknown'; apps show no information at all.

    Estimated effort: A column in stops.txt; your scheduling software likely has it.

  3. Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.

    499 of 499 trips don't say whether the vehicle is wheelchair accessible. Even with accessible stops, riders need to know the bus itself can take them.

    Estimated effort: A default or per-trip field in your export.

Trillium produces and hosts this feed as a service. These changes are made on their side: send the fix list to your Trillium contact and they apply it and republish.

Finding handoff

Move one finding to a recheck

Select one finding. Copy the request, make the change in the feed-producing tool, then compare the next complete run.

Feed evidence
Service data runs out in 7 day(s).
Next action
Re-export with a validity window that reaches at least 60 days out.
Recheck
Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text

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/sonoma-county-transit-sct/. Rubric v1.3, validator 8.0.1.