Call-prep brief · checked 2026-08-02
Marin Transit
Grade B · 82.3 / 100
Down 0.4 points since 2026-08-01 (B to B).
For this call: lead with the grade and the three fixes below, then confirm the feed is current and the NTD details line up. Each fix is framed as a next step, not a failure.
What changed since the last check
- Correctness no change
- Freshness down 1.7
- Rider experience no change
Top three things to fix
Add the required column named in the finding to the flagged file.
A file is missing a column that GTFS requires. Apps may reject the whole file, so riders could lose the affected routes or stops.
Effort: Often an export setting; ask your vendor if it recurs.
Check the flagged stops' shape_dist_traveled against the route shape, and re-generate it on export if they disagree.
Some stops sit far from the route line, going by the feed's own distance values. Trip planners may draw the route down the wrong streets or point riders to the wrong corner.
Effort: Usually an export-tool fix, not hand editing.
Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.
532 of 1612 trips don't say whether the vehicle is wheelchair accessible. Even with accessible stops, riders need to know the bus itself can take them.
Effort: A default or per-trip field in your export.
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
- A file is missing a column that GTFS requires.
- Next action
- Add the required column named in the finding to the flagged file.
- 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
- Feed evidence
- Some stops sit far from the route line, going by the feed's own distance values.
- Next action
- Check the flagged stops' shape_dist_traveled against the route shape, and re-generate it on export if they disagree.
- 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
- Feed evidence
- 532 of 1612 trips don't say whether the vehicle is wheelchair accessible.
- Next action
- Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.
- 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
NTD GTFS readiness: Needs attention
This feed is close to NTD-ready. 1 validator error to resolve.
- Published Ready
- Published at a public URL.
- Valid Needs attention
- 1 validator error to resolve.
- Current Ready
- Service data covers the next 42 days.
- agency_id provided Ready
- agency.txt provides agency_id. For RY2026, keep one stable value for each NTD reporter represented in the feed and crosswalk each value on the P-50 form.
agency_id equals NTD ID (optional): Different (allowed). Your feed's agency_id is 33; your National Transit Database ID is 90234. A feed that serves several agencies (a shared regional feed) can legitimately carry more than one agency_id. The values do not need to equal the five-digit NTD ID, so this difference is allowed and carries no score. Confirm that P-50 crosswalks agency_id 33 to NTD ID 90234, and keep the feed value stable. Do not change it solely to make the two values equal.
Key facts
- Feed URL
- http://www.marintransit.org/data/google_transit.zip
- Last checked
- 2026-08-02
- Service window
- 42 days of service data remain. Last service date 2026-09-13.
- Feed version
- UTC: 04-Feb-2026 00:08
A data-quality and completeness read to support an agency conversation. Not an official compliance determination. Rubric v1.3, validator 8.0.1.