Board packet · transit data quality · checked 2026-10-07
Pierce Transit
Grade B · 87.8 / 100
Unchanged since 2026-10-06.
What this grade measures
The quality of the schedule data in the feed scored here 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:
Review the rule documentation for 'missing_required_agency_id' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
Missing required agency id (flagged by the MobilityData validator). See the linked rule for what this affects.
This is a validator notice, and the validator decides what each instance covers, so no share of the network can be read from it here.
Estimated effort: Varies.
Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.
8900 of 8912 trips don't say whether the vehicle is wheelchair accessible. Even with accessible stops, riders need to know the bus itself can take them.
Fixing this covers 8,900 of 8,912 trips, nearly all of them.
Estimated effort: A default or per-trip field in your export.
Remove past service periods the next time you export the feed.
Some service calendars in the feed have already ended. Expired calendars are dead weight and can hide real schedule problems from your staff and vendors.
This is a validator notice, and the validator decides what each instance covers, so no share of the network can be read from it here.
Estimated effort: One setting in most export tools.
Riders and need behind these fixes
- This feed carries no National Transit Database ID, so annual rider-trips are not known for it.
- Washington as a whole measures lower on transit need. That is a statewide reading, not one for this feed's service area. Source: US Census ACS 5-year 2022, statewide overlay, as of 2026-10-05.
These describe this feed only. They do not rank agencies, and they do not change the grade or the order of the fixes.
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
- Missing required agency id (flagged by the MobilityData validator).
- Next action
- Review the rule documentation for 'missing_required_agency_id' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
- 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
- 8900 of 8912 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
- Feed evidence
- Some service calendars in the feed have already ended.
- Next action
- Remove past service periods the next time you export the feed.
- 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/pierce-transit/. Rubric v1.4, validator 8.0.1.