Board packet · transit data quality · checked 2026-10-07
CobbLinc
Grade D · 63.0 / 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:
Check the trip updates endpoint with your AVL vendor; it should return a fresh GTFS-Realtime protobuf on every request.
The trip updates realtime feed failed during sampling. When this feed is down, riders see scheduled times presented as if they were live.
This was measured over a realtime sampling window, so it has no feed-wide share.
Estimated effort: Usually a vendor support ticket.
Check the vehicle positions endpoint with your AVL vendor; it should return a fresh GTFS-Realtime protobuf on every request.
The vehicle positions realtime feed failed during sampling. When this feed is down, riders see scheduled times presented as if they were live.
This was measured over a realtime sampling window, so it has no feed-wide share.
Estimated effort: Usually a vendor support ticket.
Check the service alerts endpoint with your AVL vendor; it should return a fresh GTFS-Realtime protobuf on every request.
The service alerts realtime feed failed during sampling. When this feed is down, riders see scheduled times presented as if they were live.
This was measured over a realtime sampling window, so it has no feed-wide share.
Estimated effort: Usually a vendor support ticket.
Riders and need behind these fixes
- This feed carries no National Transit Database ID, so annual rider-trips are not known for it.
- Georgia 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
- The trip updates realtime feed failed during sampling.
- Next action
- Check the trip updates endpoint with your AVL vendor; it should return a fresh GTFS-Realtime protobuf on every request.
- 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 vehicle positions realtime feed failed during sampling.
- Next action
- Check the vehicle positions endpoint with your AVL vendor; it should return a fresh GTFS-Realtime protobuf on every request.
- 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 service alerts realtime feed failed during sampling.
- Next action
- Check the service alerts endpoint with your AVL vendor; it should return a fresh GTFS-Realtime protobuf on every request.
- 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/cobblinc/. Rubric v1.4, validator 8.0.1.