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Call-prep brief · checked 2026-07-09

Humboldt Transit Authority

Grade C · 78.2 / 100

Unchanged since 2026-07-08.

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
  • 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 with your AVL vendor that every vehicle assignment flows into TripUpdates, including school-day and tripper runs.

    1 of 1 trips scheduled during the sampling window had no live predictions. Riders on those trips get schedule data dressed up as realtime. Caltrans expects every operating trip in TripUpdates.

    Effort: A vendor data-mapping question.

    Agencies here usually clear this within about 1 week (based on 84 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 187 days.

agency_id and NTD ID: Not checked yet. Setting your GTFS agency_id to your five-digit NTD ID is an optional way to line a feed up with its National Transit Database record. FTA links the two on your P-50 form, so it is not a required feed change. We don't have your NTD ID on file, so this is not checked yet.

Key facts

Feed URL
https://data.trilliumtransit.com/gtfs/humboldtcounty-ca-us/humboldtcounty-ca-us.zip
Last checked
2026-07-09
Service window
175 days of service data remain. Last service date 2026-12-31.
Feed version
UTC: 05-Feb-2026 23:45

A data-quality and completeness read to support an agency conversation. Not an official compliance determination. Rubric v1.1, validator 8.0.1.