Header
...
GTFS Realtime
...
Value
...
Comment
This page describes how Samtrafiken maps Noptis data (see https://www.noptis.com/) to GTFS-realtime data. For a complete specification of the GTFS-realtime format, see http://gtfs.org/reference/realtime/v1/.
Message: FeedHeader
GTFS-RT | Value |
---|---|
header.gtfs_realtime_version |
|
header.incrementality |
|
header.timestamp | UTC time in seconds of file creation |
. Example: |
...
|
Message: FeedEntity
GTFS |
---|
-RT | NOPTIS |
---|
Comment
id
DeviationMessageVersion.Id
alert.header_text.translation.text
DeviationMessage.Content (UsageTypeShortName=HEADER)
OR
DeviationMessageVersion.PublicNote
alert.description_text.translation.text
DeviationMessage.Content (UsageTypeShortName=DETAILS)
OR
DeviationMessageVersion.PublicNote
alert.active_period.start
DeviationMessageVersion.PublishFromDateTime
alert.active_period.end
DeviationMessageVersion.PublishUpToDateTime
alert.cause
UNKNOWN_CAUSE
OR
DeviationReasonStandardCategoryCode → alert.cause
MEDICAL → MEDICAL_EMERGENCY
POLICEDECISION → POLICE_ACTIVITY
ROADWORK → CONSTRUCTION
MAINTENANCE → MAINTENANCE
WEATHER → WEATHER
ACCIDENT → ACCIDENT
STRIKE → STRIKE
VEHICLEBREAKDOWN, TECHNICALFAILURE → TECHNICAL_PROBLEM
ELSE → OTHER_CAUSE
alert.informed_entity.route_id
alert.informed_entity.stop_id
Trip updates
GTFS Realtime
NOPTIS ROI
Comment
id | If entity contains field trip_update, then:
If entity contains field vehicle, then:
If entity contains field alert, then:
|
trip_update | See section “Message: TripUpdate”. |
vehicle | See section “Message: VehiclePosition”. |
alert | See section “Message: Alert”. |
Message: TripUpdate
File: TripUpdates.pb
When trip updates are generated, stop time updates with departure or arrival times that are considered too old are excluded. A departure/arrival is considered too old if the vehicle left the stop 10 minutes ago.
GTFS-RT | NOPTIS |
---|---|
trip.trip_id | VehicleJourney.Id |
trip.route_id | Line.Gid |
trip.direction_id | DirectionOfLine.DirectionCode → direction_id
|
trip.start_time | DatedVehicleJourney.TimetabledStartDateTime |
trip.start_date | DatedVehicleJourney.TimetabledStartDateTime |
trip.schedule_relationship | If a DatedVehicleJourney.VehicleJourneyState exists and is canceled, then set to |
stop_time_update.stop_id |
StopPoint. |
Gid | |
stop_time_update.stop_sequence | Departure.JourneyPatternSequenceNumber |
stop_time_update.arrival.delay | Based on predicted arrival time and scheduled arrival time |
stop_time_update.arrival.time | Arrival.ObservedDateTime or Arrival.TargetDateTime |
stop_time_update.arrival.uncertainty |
|
stop_time_update.arrival.schedule_relationship |
|
stop_time_update.departure.delay | Based on predicted departure time and scheduled departure time |
stop_time_update.departure.time | Departure.ObservedDateTime or Departure.TargetDateTime |
stop_time_update.departure.uncertainty |
|
stop_time_update |
timestamp
Vehicle positions
GTFS Realtime
NOPTIS POSROI
.departure.schedule_relationship |
|
vehicle.id | MonitoredVehicleJourney.IsAssignedToVehicleGid |
timestamp | Departure.Timestamp The latest timestamp overall in the list of departures and arrivals in the current trip update |
Message VehiclePosition
File: VehiclePositions.pb
.
Entity Position in the below table refers to a POSROI message.
GTFS-RT | NOPTIS | Comment |
---|---|---|
trip.trip_id | VehicleJourney.Id | If a scheduled journey exists, then trip_id is used for identification, else route_id and direction_id is used. |
trip.route_id | Line.Gid | |
trip.direction_id | DirectionOfLine.DirectionCode → direction_id
| |
trip.start_time | DatedVehicleJourney.TimetabledStartDateTime | Is only included if a trip is unscheduled. |
trip.start_date | DatedVehicleJourney.TimetabledStartDateTime | Is only included if a trip is unscheduled. |
trip.schedule_relationship | If vehicle journey exists, then | |
position.latitude | Position.Northing | |
position.longitude | Position.Easting | |
position.bearing | Position.Heading | |
position.speed | Position.Speed | |
vehicle.id | Position.Vehicle | |
timestamp | Position.Timestamp | |
occupancy_status | APCRDA.PassengerLoadReport.OnboardCount for current occupancy | Mapped to the OccupancyStatus enum as described below: |
Message Alert
File: ServiceAlerts.pb
.
GTFS-RT | NOPTIS |
---|---|
active_period.start | DeviationMessageVersion.PublishFromDateTime |
active_period.end | DeviationMessageVersion.PublishUpToDateTime |
header_text.translation.text | DeviationMessage.Content (UsageTypeShortName=HEADER) |
description_text.translation.text | DeviationMessage.Content (UsageTypeShortName=DETAILS) |
cause |
|
informed_entity.route_id | Line.Gid |
informed_entity.stop_id | StopPoint.Gid |
informed_entity.agency_id | TransportAuthority.Id |
informed_entity.trip.trip_id | VehicleJourney.Id |
informed_entity.trip.schedule_relationship | If a vehicle journey exists, then |