gtfs-rt Transport open dataset - Horaires temps réel des lignes du réseau SYLVIA for Réseau urbain Sylvia

Resource details

File name: Horaires temps réel des lignes du réseau SYLVIA

Format: gtfs-rt

This resource file is part of the dataset Réseau urbain Sylvia.

Download availability

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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

❌2 errors, 70 warnings

Validation carried out using the current GTFS file and the GTFS-RT the 2026-01-15 at 08:07 Europe/Paris using the MobilityData GTFS-RT validator.

Errors

stop_time_update departure time is before arrival time E025 2 errors

Within the same stop_time_update, arrival and departures times can be the same, or the departure time can be later than the arrival time - the departure time should never come before the arrival time.

Sample errors

trip_id 1-1023476323 stop_sequence 3 departure_time 08:02:19 (1768460539) is less than the same stop arrival_time 08:02:24 (1768460544) - departure time must be equal to or greater than arrival time
trip_id 1-33685505 stop_sequence 11 departure_time 08:03:00 (1768460580) is less than the same stop arrival_time 08:03:02 (1768460582) - departure time must be equal to or greater than arrival time

Warnings

vehicle_id not populated W002 23 errors

vehicle_id should be populated for TripUpdates and VehiclePositions

Sample errors

trip_id 1-1694565363 does not have a vehicle_id
trip_id 1-1711734785 does not have a vehicle_id
trip_id 1-1728119815 does not have a vehicle_id
trip_id 1-1744897041 does not have a vehicle_id
trip_id 1-17760354 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 2 min 13 sec old which is greater than the recommended age of 65 seconds

schedule_relationship not populated W009 46 errors

trip.schedule_relationship and stop_time_update.schedule_relationship should be populated

Sample errors

trip_id 1-1694565363 stop_sequence 1 (and potentially more for this trip) does not have a schedule_relationship
trip_id 1-1694565363 does not have a schedule_relationship
trip_id 1-1711734785 stop_sequence 1 (and potentially more for this trip) does not have a schedule_relationship
trip_id 1-1711734785 does not have a schedule_relationship
trip_id 1-1728119815 stop_sequence 1 (and potentially more for this trip) 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	378	24 times (80 % of validations)
W009	trip.schedule_relationship and stop_time_update.schedule_relationship should be populated	756	24 times (80 % of validations)
W008	The data in a GTFS-realtime feed should always be less than one minute old	13	13 times (43 % of validations)
E025	Within the same stop_time_update, arrival and departures times can be the same, or the departure time can be later than the arrival time - the departure time should never come before the arrival time.	13	8 times (27 % of validations)
E003	All trip_ids provided in the GTFS-rt feed must exist in the GTFS data, unless the schedule_relationship is ADDED	61	2 times (7 % of validations)
E004	All route_ids provided in the GTFS-rt feed must exist in the GTFS data	33	2 times (7 % of validations)
E011	All stop_ids referenced in GTFS-rt feeds must exist in GTFS stops.txt	853	2 times (7 % of validations)

GTFS-RT feed content

Entities

Entities present in this feed at 2026-01-15 at 23:11 Europe/Paris.

vehicle_positions (0) service_alerts (0) trip_updates (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 2026-01-15 at 23:11 Europe/Paris. You can look at the GTFS-RT documentation.


        {
  "header": {
    "gtfsRealtimeVersion": "1.0",
    "timestamp": "1768515092"
  }
}