Call-prep brief · checked 2026-07-23
Hamburger Verkehrsverbund (hvv)
Grade F · 41.6 / 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
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.
16632 of 17603 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.
Add fare_attributes.txt (or Fares v2 files) with your fare structure. If your service is fare-free, ask to have it marked fare-free instead.
The feed contains no fare information. Riders see 'fare unknown' in trip planners and can't budget their trip; visitors are most affected.
Effort: A small file for most flat-fare systems.
Key facts
- Feed URL
- https://daten.transparenz.hamburg.de/Dataport.HmbTG.ZS.Webservice.GetRessource100/GetRessource100.svc/f0073555-962c-4d55-870e-b94bb676ad9d/Upload__hvv_Rohdaten_GTFS_Fpl_20260408.ZIP
- Last checked
- 2026-07-23
- Service window
- 142 days of service data remain. Last service date 2026-12-12.
- Feed version
- 2026-04-08T16:29:42
- Location
- Hamburg, Germany
A data-quality and completeness read to support an agency conversation. Not an official compliance determination. Rubric v1.2, validator 8.0.1.