Call-prep brief · checked 2026-07-18

Cardiff Bus (Bws Caerdydd)

Grade F · 35.3 / 100

First check for this agency, so there is no trend yet.

For this call: lead with the grade and the three fixes below, then confirm the feed is current and the rider information is complete. Each fix is framed as a next step, not a failure.

What changed since the last check

No category changes since the last check.

Top three things to fix

Re-export the feed with a calendar that reaches further out, and set feed_info feed_end_date past your next service change.
Service data ended 0 day(s) ago. When the calendar runs out, trip planners stop showing this agency even though the buses are still running. Riders are told the service does not exist.
Effort: Usually one export setting; export on a schedule so it never lapses again.
Review the rule documentation for 'block_trips_with_overlapping_stop_times' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
Block trips with overlapping stop times (flagged by the MobilityData validator). See the linked rule for what this affects.
Effort: Varies.
Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.
1667 of 1667 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.

Ready to send to the agency

Hi Cardiff Bus (Bws Caerdydd) team, Service data ended 0 day(s) ago. When the calendar runs out, trip planners stop showing this agency even though the buses are still running. Riders are told the service does not exist. The fix is usually one export setting: Re-export the feed with a calendar that reaches further out, and set feed_info feed_end_date past your next service change. This came from your GTFS data quality scorecard, which checks the feed you publish and lists the fixes in plain language: https://gtfsscorecard.org/agency/cardiff-bus/

Copy this note from the full scorecard.

Key facts

Feed URL: https://data.discoverpassenger.com/operator/ccts/dataset/current/download/gtfs
Last checked: 2026-07-18
Service window: Feed has expired. Last service date 2026-07-18.
Location: Cardiff [Caerdydd GB-CRD], United Kingdom

A data-quality and completeness read to support an agency conversation. Not an official compliance determination. Rubric v1.2, validator 8.0.1.