Donau-Iller-Nahverkehrsverbund (DING)

Point near origin (flagged by the MobilityData validator).

See the linked rule for what this affects.

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

Validator rule: point_near_origin · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

5467 of 5474 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.

Fix: Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops. (A column in stops.txt; your scheduling software likely has it.)

Validator rule: scorecard_wheelchair_boarding_unknown · Read the fix guide · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)

Some service calendars have no days of the week switched on.

Trips tied to these calendars never run; they are dead data that can mask real schedule problems.

Fix: Delete the empty calendars or set their service days. (A few minutes in your scheduling software.)

Validator rule: service_has_no_active_day_of_the_week · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

The feed contains route shapes no trip uses.

Harmless to riders, but it bloats the feed and suggests stale export data.

Fix: Turn on 'remove unused shapes' (or the like) in your export tool. (One setting.)

Validator rule: unused_shape · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

1026 of 28797 trips have no headsign.

Riders at the stop can't tell which direction a transit vehicle is going.

Fix: Populate trip_headsign to match what the transit vehicle displays. (Usually a bulk edit in your scheduling software.)

Validator rule: scorecard_missing_headsigns · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)

Some service calendars in the feed have already ended.

Expired calendars are dead weight and can hide real schedule problems from your staff and vendors.

Fix: Remove past service periods the next time you export the feed. (One setting in most export tools.)

Validator rule: expired_calendar · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Stop too far from shape using user distance (flagged by the MobilityData validator).

See the linked rule for what this affects.

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

Validator rule: stop_too_far_from_shape_using_user_distance · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Fast travel between far stops (flagged by the MobilityData validator).

See the linked rule for what this affects.

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

Validator rule: fast_travel_between_far_stops · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Some stops sit far from the route line they belong to.

Trip planners may draw the transit vehicle route through the wrong path or point riders to the wrong boarding location.

Fix: Check the flagged stops' coordinates and the route shape in your scheduling software; re-snap whichever is misplaced. (A few minutes per flagged stop.)

Validator rule: stop_too_far_from_shape · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Some scheduled trips move faster between stops than a transit vehicle can.

Usually a typo'd stop time; riders get arrival times no transit vehicle can meet.

Fix: Check the flagged stop times for transposed minutes. (A few minutes per flagged trip.)

Validator rule: fast_travel_between_consecutive_stops · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Two or more routes share the same name.

Riders can't tell the routes apart in apps.

Fix: Give each route a distinct short or long name. (One field per route.)

Validator rule: duplicate_route_name · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Stops match shape out of order (flagged by the MobilityData validator).

See the linked rule for what this affects.

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

Validator rule: stops_match_shape_out_of_order · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Transfer distance too large (flagged by the MobilityData validator).

See the linked rule for what this affects.

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

Validator rule: transfer_distance_too_large · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Some rider-facing names are in ALL CAPS or all lowercase.

ALL-CAPS stop and headsign names are harder to read in apps and are read awkwardly by screen readers.

Fix: Use mixed case for stop names and headsigns (e.g. 'Main St & 2nd Ave', not 'MAIN ST & 2ND AVE'). (Often a bulk fix in your scheduling software.)

Validator rule: mixed_case_recommended_field · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Missing feed contact email and url (flagged by the MobilityData validator).

See the linked rule for what this affects.

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

Validator rule: missing_feed_contact_email_and_url · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Single shape point (flagged by the MobilityData validator).

See the linked rule for what this affects.

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

Validator rule: single_shape_point · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

The feed contains no fare information.

Riders see 'fare unknown' in trip planners and can't budget their trip; visitors are most affected.

Fix: 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. (A small file for most flat-fare systems.)

Validator rule: scorecard_no_fare_data · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)

This feed models stations or entrances but has no pathways.txt.

Trip planners can't guide riders through the station, and there is no step-free route information for wheelchair users.

Fix: Add pathways.txt connecting entrances, platforms, and any elevators, with a level for each. (Worth it for multi-level or large stations; flat stops don't need it.)

Validator rule: scorecard_station_no_pathways · Read the fix guide · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)

Platform without parent station (flagged by the MobilityData validator).

See the linked rule for what this affects.

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

Validator rule: platform_without_parent_station · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Big gap in service (flagged by the MobilityData validator).

See the linked rule for what this affects.

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

Validator rule: big_gap_in_service · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

feed_info.txt has no technical contact (feed_contact_email or feed_contact_url).

Trip-planning apps and regional data coordinators have nobody to email when they spot a problem with your feed, so problems linger.

Fix: Add feed_contact_email to feed_info.txt. (One field.)

Validator rule: scorecard_no_feed_contact · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)