Connecticut Transit

What changed since the last check

• Correctness no change
• Freshness no change
• Rider experience no change
• Realtime quality no change

Top three things to fix

1. 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.

   Effort: Usually a vendor support ticket.

   Agencies here usually clear this within about 1 week (based on 11 observed fixes).

2. 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.

   Effort: Usually a vendor support ticket.

   Agencies here usually clear this within about 1 week (based on 9 observed fixes).

3. 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.

   Effort: Usually a vendor support ticket.

   Agencies here usually clear this within about 1 week (based on 5 observed fixes).

NTD certification readiness: Ready

This feed looks ready for your NTD certification: published at a public URL, valid, and current. The official check is still your D-10 certification.

Published Ready

Published at a public URL.

Valid Ready

Passes validation with no errors.

Current Ready

Service data covers the next 196 days.

agency_id and NTD ID: Not aligned. Your feed's agency_id is 4, 5, 3, 2, 1, 7, 8; your National Transit Database ID is 10048. A feed that serves several agencies (a shared regional feed) can legitimately carry more than one agency_id, so a difference here is a heads-up, not an error. Optionally set the agency_id for your service to 10048 in agency.txt (and the matching agency_id in routes.txt) so the feed lines up with your NTD record. It is a convenience, not a required feed change: FTA also links agency_id to your NTD ID on your P-50 form.

Key facts

Feed URL

https://www.cttransit.com/sites/default/files/gtfs/googlect_transit.zip

Last checked

2026-07-09

Service window

184 days of service data remain. Last service date 2027-01-09.

State

Connecticut