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Call-prep brief · checked 2026-07-18

ASPO (Olbia urban bus)

Grade F · 54.4 / 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 'trip_distance_exceeds_shape_distance' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.

    Trip distance exceeds shape distance (flagged by the MobilityData validator). See the linked rule for what this affects.

    Effort: Varies.

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

    403 of 403 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.

  3. Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.

    395 of 395 trips don't say whether the vehicle is wheelchair accessible. Even with accessible stops, riders need to know the bus itself can take them.

    Effort: A default or per-trip field in your export.

Key facts

Feed URL
https://www.aspo.it/wp-content/uploads/open_data.zip
Last checked
2026-07-18
Service window
59 days of service data remain. Last service date 2026-09-15.
Feed version
1
Location
Sardegna, Italy

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