gtfs-rt Transport open dataset - Ar bus - Landerneau-Daoulas for Réseau urbain Ar bus

Resource details

File name: Ar bus - Landerneau-Daoulas

Format: gtfs-rt

Fichier GTFS-RT

This resource file is part of the dataset Réseau urbain Ar bus.

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We test this resource download availability every hour by making an HTTP HEAD request with a timeout of 5 seconds. If we detect a downtime, we perform subsequent tests every 10 minutes, until the resource is back online.

For SIRI and SIRI Lite feeds, we perform a GET request: a 401 or 405 status code is considered successful. In case of HTTP 500, the feed will be considered unavailable, unless the body appears to contain SOAP.

Validation details

⚠️4 warnings

Validation carried out using the current GTFS file and the GTFS-RT the 2026-07-26 at 09:01 Europe/Paris using the MobilityData GTFS-RT validator.

Warnings

vehicle_id not populated W002 1 error

vehicle_id should be populated for TripUpdates and VehiclePositions

Sample errors

trip_id 3 samedi 18:40 does not have a vehicle_id

Header timestamp is older than 65 seconds W008 1 error

The data in a GTFS-realtime feed should always be less than one minute old

Sample errors

header.timestamp is 786 min 54 sec old which is greater than the recommended age of 65 seconds

schedule_relationship not populated W009 2 errors

trip.schedule_relationship and stop_time_update.schedule_relationship should be populated

Sample errors

trip_id 3 samedi 18:40 stop_sequence 15 (and potentially more for this trip) does not have a schedule_relationship
trip_id 3 samedi 18:40 does not have a schedule_relationship

Validate this GTFS-RT now

Previous validations

Here is a recap of all the error types encountered over the last 30 days.

Error ID	Description	Errors count	Number of occurences
W002	vehicle_id should be populated for TripUpdates and VehiclePositions	66	30 times (100 % of validations)
W009	trip.schedule_relationship and stop_time_update.schedule_relationship should be populated	132	30 times (100 % of validations)
W008	The data in a GTFS-realtime feed should always be less than one minute old	27	27 times (90 % of validations)
E022	stop_time_update arrival/departure times between sequential stops should always increase - they should never be the same or decrease.	2	1 times (3 % of validations)

GTFS-RT feed content

Entities

Entities present in this feed at 2026-07-25 at 19:54 Europe/Paris.

trip_updates (1) vehicle_positions (0) service_alerts (0)

The timestamp field appears to be too old compared to the current time: the delay is 74,039 seconds. Try to update your feed at most every 30 seconds.

Entities seen in the last 7 days.

trip_updates

Decoded GTFS-RT feed

See full payload

Here is the decoded GTFS-RT feed Protobuf at 2026-07-25 at 19:54 Europe/Paris. You can look at the GTFS-RT documentation.


        {
  "entity": [
    {
      "id": "SM:3 samedi 18:40",
      "tripUpdate": {
        "stopTimeUpdate": [
          {
            "arrival": {
              "delay": 1,
              "time": "1785002022"
            },
            "departure": {
              "delay": 1,
              "time": "1785002080"
            },
            "stopId": "22",
            "stopSequence": 15
          },
          {
            "arrival": {
              "delay": 1,
              "time": "1785002081"
            },
            "departure": {
              "delay": 1,
              "time": "1785002140"
            },
            "stopId": "151",
            "stopSequence": 16
          },
          {
            "arrival": {
              "delay": 1,
              "time": "1785002141"
            },
            "departure": {
              "delay": 1,
              "time": "1785002380"
            },
            "stopId": "152",
            "stopSequence": 17
          },
          {
            "arrival": {
              "delay": 1,
              "time": "1785002500"
            },
            "departure": {
              "delay": 1,
              "time": "1785002500"
            },
            "stopId": "155",
            "stopSequence": 18
          },
          {
            "arrival": {
              "delay": 1,
              "time": "1785002560"
            },
            "departure": {
              "delay": 1,
              "time": "1785002560"
            },
            "stopId": "153",
            "stopSequence": 19
          },
          {
            "arrival": {
              "delay": 1,
              "time": "1785002561"
            },
            "departure": {
              "delay": 1,
              "time": "1785002561"
            },
            "stopId": "156",
            "stopSequence": 20
          }
        ],
        "timestamp": "1785001471",
        "trip": {
          "routeId": "3",
          "tripId": "3 samedi 18:40"
        }
      }
    }
  ],
  "header": {
    "gtfsRealtimeVersion": "1.0",
    "timestamp": "1785002091"
  }
}