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Call-prep brief · checked 2026-07-18

Go Cornwall Bus (Transport for Cornwall)

Grade F · 40.0 / 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

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

    Duplicate key (flagged by the MobilityData validator). See the linked rule for what this affects.

    Effort: Varies.

  2. 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.

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

    4697 of 4697 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.

Key facts

Feed URL
https://data.discoverpassenger.com/operator/gocornwallbus/dataset/current/download/gtfs
Last checked
2026-07-18
Service window
341 days of service data remain. Last service date 2027-06-24.
Location
Cornwall, 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.