gtfs-rt Transport open dataset - OFFRE DE TRANSPORTS RESEAU TAC - TEMPS REEL FLUX MISE A JOUR DES TRAJETS for Réseau urbain TAC Mobilité

Resource details

File name: OFFRE DE TRANSPORTS RESEAU TAC - TEMPS REEL FLUX MISE A JOUR DES TRAJETS

Format: gtfs-rt

ANNEMASSE AGGLO, EN TANT QU’AUTORITE ORGANISATRICE DE TRANSPORT URBAIN, A CONFIE A LA SOCIETE PRIVEE TP2A, FILIALE DE RATP DEV, LA GESTION DE L’EXPLOITATION DU RESEAU DE BUS TAC, DANS LE CADRE D’UNE DELEGATION DE SERVICE PUBLIC

This resource file is part of the dataset Réseau urbain TAC Mobilité.

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Validation details

❌39 errors, 35 warnings

Validation carried out using the current GTFS file and the GTFS-RT the 2026-01-22 at 08:04 Europe/Paris using the MobilityData GTFS-RT validator.

Errors

GTFS-rt stop_sequence isn't provided for trip that visits same stop_id more than once E009 3 errors

If a GTFS trip contains multiple references to the same stop_id (i.e., the vehicle visits the same stop_id more than once in the same trip), then GTFS-rt stop_time_updates for this trip must include stop_sequence

Sample errors

trip_id 21823448 visits stop_id [cravict1] more than once and GTFS-rt stop_time_update is missing stop_sequence field - stop_sequence must be provided
trip_id 21823435 visits stop_id [cravict1] more than once and GTFS-rt stop_time_update is missing stop_sequence field - stop_sequence must be provided
trip_id 21823509 visits stop_id [cravict1] more than once and GTFS-rt stop_time_update is missing stop_sequence field - stop_sequence must be provided

Sequential stop_time_update times are not increasing E022 36 errors

stop_time_update arrival/departure times between sequential stops should always increase - they should never be the same or decrease.

Sample errors

trip_id 21827666 stop_id gaifoss1 departure_time 08:00:08 (1769065208) is less than previous stop departure_time 08:15:57 (1769066157) - times must increase between two sequential stops
trip_id 21827666 stop_id gaifoss1 departure_time 08:00:08 (1769065208) is less than previous stop arrival_time 08:15:57 (1769066157) - times must increase between two sequential stops
trip_id 21827666 stop_id gaimart1 arrival_time 08:01:08 (1769065268) is less than previous stop arrival_time 08:15:57 (1769066157) - times must increase between two sequential stops
trip_id 21827666 stop_id gaimart1 departure_time 08:01:31 (1769065291) is less than previous stop arrival_time 08:15:57 (1769066157) - times must increase between two sequential stops
trip_id 21827666 stop_id vlgheno1 arrival_time 08:17:36 (1769066256) is less than previous stop arrival_time 08:20:23 (1769066423) - times must increase between two sequential stops

Warnings

vehicle_id not populated W002 35 errors

vehicle_id should be populated for TripUpdates and VehiclePositions

Sample errors

trip_id 21823448 does not have a vehicle_id
trip_id 21823216 does not have a vehicle_id
trip_id 21823605 does not have a vehicle_id
trip_id 21823209 does not have a vehicle_id
trip_id 21823295 does not have a vehicle_id

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	854	32 times (100 % of validations)
E022	stop_time_update arrival/departure times between sequential stops should always increase - they should never be the same or decrease.	1,330	31 times (97 % of validations)
E002	stop_time_updates for a given trip_id must be strictly sorted by increasing stop_sequence	194	30 times (94 % of validations)
E009	If a GTFS trip contains multiple references to the same stop_id (i.e., the vehicle visits the same stop_id more than once in the same trip), then GTFS-rt stop_time_updates for this trip must include stop_sequence	77	26 times (81 % of validations)
E011	All stop_ids referenced in GTFS-rt feeds must exist in GTFS stops.txt	5	5 times (16 % of validations)

GTFS-RT feed content

Entities

Entities present in this feed at 2026-01-23 at 03:42 Europe/Paris.

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

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 2026-01-23 at 03:42 Europe/Paris. You can look at the GTFS-RT documentation.


        {
  "entity": [
    {
      "id": "21823205",
      "tripUpdate": {
        "stopTimeUpdate": [
          {
            "departure": {
              "time": "1769087700",
              "uncertainty": 120
            },
            "stopId": "vmomonn1"
          },
          {
            "arrival": {
              "time": "1769087786",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769087790",
              "uncertainty": 120
            },
            "stopId": "annlema2"
          },
          {
            "arrival": {
              "time": "1769087868",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769087911",
              "uncertainty": 120
            },
            "stopId": "annrier2"
          },
          {
            "arrival": {
              "time": "1769087971",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769087971",
              "uncertainty": 120
            },
            "stopId": "annanne2"
          },
          {
            "arrival": {
              "time": "1769088062",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769088062",
              "uncertainty": 120
            },
            "stopId": "annroug2"
          },
          {
            "arrival": {
              "time": "1769088151",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769088151",
              "uncertainty": 120
            },
            "stopId": "annperi2"
          },
          {
            "arrival": {
              "time": "1769088317",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769088317",
              "uncertainty": 120
            },
            "stopId": "annlibe1"
          },
          {
            "arrival": {
              "time": "1769088390",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769088390",
              "uncertainty": 120
            },
            "stopId": "annjose1"
          },
          {
            "arrival": {
              "time": "1769088512",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769088512",
              "uncertainty": 120
            },
            "stopId": "anneuma2"
          },
          {
            "arrival": {
              "time": "1769088633",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769088633",
              "uncertainty": 120
            },
            "stopId": "anngare3"
          },
          {
            "arrival": {
              "time": "1769088778",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769088778",
              "uncertainty": 120
            },
            "stopId": "vlgrepu1"
          },
          {
            "arrival": {
              "time": "1769088878",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769088878",
              "uncertainty": 120
            },
            "stopId": "vlgegli2"
          },
          {
            "arrival": {
              "time": "1769089006",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769089006",
              "uncertainty": 120
            },
            "stopId": "vlglang1"
          },
          {
            "arrival": {
              "time": "1769089104",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769089104",
              "uncertainty": 120
            },
            "stopId": "vlgvoir1"
          },
          {
            "arrival": {
              "time": "1769089171",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769089171",
              "uncertainty": 120
            },
            "stopId": "vlgbuch1"
          },
          {
            "arrival": {
              "time": "1769089269",
              "uncertainty": 120
            },
            "departure": {
              "time": "1769089269",
              "uncertainty": 120
            },
            "stopId": "vlgzimo1"
          },
          {
            "arrival": {
              "time": "1769089390",
              "uncertainty": 120
            },
            "stopId": "craalte2"
          }
        ],
        "timestamp": "1769136159",
        "trip": {
          "routeId": "T2",
          "scheduleRelationship": "SCHEDULED",
          "tripId": "21823205"
        },
        "vehicle": {
          "id": "302",
          "label": "302"
        }
      }
    }
  ],
  "header": {
    "gtfsRealtimeVersion": "2.0",
    "timestamp": "1769136159"
  }
}