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Call-prep brief · checked 2026-09-13

Santa Clarita Transit

Grade F · 55.4 / 100

Unchanged since 2026-09-12.

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

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

    Effort: Varies.

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

    Invalid input files in subfolder (flagged by the MobilityData validator). See the linked rule for what this affects.

    Effort: Varies.

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

    Missing calendar and calendar date files (flagged by the MobilityData validator). See the linked rule for what this affects.

    Effort: Varies.

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
Missing required file (flagged by the MobilityData validator).
Next action
Review the rule documentation for 'missing_required_file' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your 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

NTD GTFS readiness: Needs attention

This feed is close to NTD-ready. 3 validator errors to resolve.

Published Ready
Published at a public URL.
Valid Needs attention
3 validator errors to resolve.
Current Ready
The published window is current, but its service end date is unusually distant; confirm that date is intentional.
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): Different (allowed). Your feed's agency_id is 47; your National Transit Database ID is 90171. A feed that serves several agencies (a shared regional feed) can legitimately carry more than one agency_id. The values do not need to equal the five-digit NTD ID, so this difference is allowed and carries no score. Confirm that P-50 crosswalks agency_id 47 to NTD ID 90171, and keep the feed value stable. Do not change it solely to make the two values equal.

The bar this score answers to

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

Key facts

Feed URL
https://gitlab.com/LACMTA/gtfs_lax/-/archive/master/gtfs_lax-master.zip?path=santa_clarita
Last checked
2026-09-13
Service window
The feed states that service is published through 2050-01-01. Confirm that this end date is intentional before relying on it as a maintenance signal. Last service date 2050-01-01.
Location
California

A data-quality and completeness read to support an agency conversation. Not an official compliance determination. Rubric v1.3, validator 8.0.1.