Call-prep brief · checked 2026-08-23
Sound Transit
Grade A · 91.7 / 100
Unchanged since 2026-08-22.
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 no change
- Rider experience no change
Top three things to fix
Remove retired stops from the export, or add them back to the trips that should serve them.
Some stops exist in the feed but no trip ever stops at them. Riders may walk to a stop where no transit vehicle is scheduled to arrive.
Effort: A review pass in your scheduling software.
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.
Effort: One setting in most export tools.
Turn on 'remove unused shapes' (or the like) in your export tool.
The feed contains route shapes no trip uses. Harmless to riders, but it bloats the feed and suggests stale export data.
Effort: One setting.
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
- Some stops exist in the feed but no trip ever stops at them.
- Next action
- Remove retired stops from the export, or add them back to the trips that should serve them.
- 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
- Feed evidence
- The feed contains route shapes no trip uses.
- Next action
- Turn on 'remove unused shapes' (or the like) in your export tool.
- 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: Ready
Published at a public URL, valid, current, and identified with agency_id: the four feed checks for RY2026 all hold here. Only your own D-10 and P-50 filings make that official; this is a heads-up, not a determination.
- Published Ready
- Published at a public URL.
- Valid Ready
- Passes validation with no errors.
- Current Ready
- Service data covers the next 215 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): Not checked yet. This feed provides agency_id. For RY2026, keep one stable value for each NTD reporter represented in the feed and crosswalk it on the P-50 form. The value does not need to equal the five-digit NTD ID; we do not have that ID on file, so the optional equality comparison is not checked yet.
The bar this score answers to
A local transit-data support resource is WSDOT Transportation Data. WSDOT builds and publishes GTFS for Washington transit agencies.
Key facts
- Feed URL
- https://gtfs.sound.obaweb.org/prod/40_gtfs.zip
- Last checked
- 2026-08-23
- Service window
- 215 days of service data remain. Last service date 2027-03-26.
- Feed version
- SC-Fall-2026.1
- Location
- Washington
Part of the Washington portfolio: see where this agency sits among the state's feeds before the call.
A data-quality and completeness read to support an agency conversation. Not an official compliance determination. Rubric v1.3, validator 8.0.1.