GTFS Scorecard

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Call-prep brief · checked 2026-07-09

Sonoma-Marin Area Rail Transit (SMART)

Grade A · 98.9 / 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

Top three things to fix

  1. Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.

    1 of 42 stops don't say whether a wheelchair user can board there. Riders who use wheelchairs can't plan a trip when accessibility is marked 'unknown'; apps show no information at all.

    Effort: A column in stops.txt; your scheduling software likely has it.

  2. Check the flagged column names for misspellings of standard GTFS fields; remove them if they are vendor extras.

    Some files contain columns that are not part of the GTFS spec. Harmless to riders, but apps ignore these columns and they can hide typos in real column names.

    Effort: A quick look at the flagged files.

  3. Review the rule documentation for 'unknown_file' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.

    Unknown file (flagged by the MobilityData validator). See the linked rule for what this affects.

    Effort: Varies.

    Agencies here usually clear this within about 1 week (based on 6 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 194 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.

The bar this score answers to

The published guideline in California is California Transit Data Guidelines. Caltrans' published quality guidelines and compliance checklist; this rubric is anchored to them.

Key facts

Feed URL
http://data.trilliumtransit.com/gtfs/smart-ca-us/smart-ca-us.zip
Last checked
2026-07-09
Service window
185 days of service data remain. Last service date 2027-01-10.
Feed version
UTC: 14-Apr-2026 15:07
State
California

Part of the California 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 v1.1, validator 8.0.1.