SIRI-ET 2.0

SIRI-ET is used to model the status of existing journeys and to ensure that deviations from the planned data (for the same operating day) such as cancellations, additional departures, delays, detours and changes in stops, can be published on short notice. The data should be linked to objects in the planned data through matching ids.

Structure

The root element estimatedTimetableDeliveryStructure includes a response timestamp (when the XML structure was rendered), subscriptionRef in case publish/subscribe is used for the data transfer, and exactly 1 EstimatedJourneyVersionFrame.

EstimatedJourneyVersionFrame contains a recorded timestamp RecordedAtTime, which is the time at which the source data was updated, along with one or more EstimatedVehicleJourney elements detailing deviations for one trip each.

Element	Required	Notes
RecordedAtTime	Required	Timestamp, e.g. 2024-11-12T14:26:37+01:00
EstimatedVehicleJourney	Required	One or more estimated vehicle journeys, see below

EstimatedVehicleJourney

Element	Required	Notes
FramedVehicleJourneyRef > DatedVehicleJourneyRef	Required	DatedVehicleJourney reference, used to match with static data
FramedVehicleJourneyRef > DataFrameRef	Required	Trip start date in YYYY-MM-DD format. Used to match with static data
Cancellation	Optional	True if trip is cancelled
isPredictionInaccurate	Optional	Optional indicator when the prediction is unreliable.
EstimatedCalls	At least two calls, estimated or recorded, should be present	The list of stops which the vehicle still has to pass on its trip. See https://samtrafiken.atlassian.net/wiki/spaces/SamtrafikenOpenData/pages/4400513025/SIRI-ET+2.0#RecordedCalls.RecordedCall
RecordedCalls	At least two calls, estimated or recorded, should be present	The list of stops which the vehicle has passed on its trip See https://samtrafiken.atlassian.net/wiki/spaces/SamtrafikenOpenData/pages/4400513025/SIRI-ET+2.0#RecordedCalls.RecordedCall
IsCompleteStopSequence	Required	Should be true, the entire trip should be included in the data

EstimatedCalls.EstimatedCall

Element	Required	Notes
Order	Required	The index of this call in a trip
AimedDepartureTime	Required, except for last call	The originally planned departure time
AimedArrivalTime	Required, except for first call	The originally planned arrival time
ExpectedDepartureTime	Optional, ignored on last call	The prognosis for what the actual departure time will be
ExpectedArrivalTime	Optional, ignored on first call	The prognosis for what the actual arrival time will be
StopPointRef	Required	The quay where the vehicle will call, should match with static data
DepartureStopAssignment > AimedQuayRef	Optional	The scheduled quay for departure
DepartureStopAssignment > ExpectedQuayRef	Optional	The expected quay for departure
ArrivalStopAssignment > AimedQuayRef	Optional	The scheduled quay for arrival
ArrivalStopAssignment > ExpectedQuayRef	Optional	The expected quay for arrival
DepartureStatus	Required	If not set, DEPARTED will be used as a default value, which may lead to incorrect data

RecordedCalls.RecordedCall

Element	Required	Notes
Order	Required	The index of this call in a trip
ExpectedDepartureTime	Required, except for last call	The originally planned departure time
ExpectedArrivalTime	Required, except for first call	The originally planned arrival time
ActualDepartureTime	Optional, ignored on last call	The actual departure time
ActualArrivalTime	Optional, ignored on first call	The actual arrival time
StopPointRef	Required	The quay where the vehicle has called, should match with static data

Valid example

Note that the example contains fields which are ignored by Samtrafiken

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<estimatedTimetableDeliveryStructure xmlns:ns5="http://www.siri.org.uk/siri" xmlns:ns2="http://www.ifopt.org.uk/acsb" xmlns:ns4="http://datex2.eu/schema/2_0RC1/2_0" xmlns:ns3="http://www.ifopt.org.uk/ifopt">
    <ns5:ResponseTimestamp>2024-11-12T14:26:37+01:00</ns5:ResponseTimestamp>
    <ns5:SubscriptionRef>estimated_timetable-1731421595</ns5:SubscriptionRef>
    <ns5:EstimatedJourneyVersionFrame>
        <ns5:RecordedAtTime>2024-11-12T14:26:37+01:00</ns5:RecordedAtTime>
        <ns5:EstimatedVehicleJourney>
            <ns5:LineRef>SE:022:Line:9011022000001000</ns5:LineRef>
            <ns5:DirectionRef>1</ns5:DirectionRef>
            <ns5:FramedVehicleJourneyRef>
                <ns5:DataFrameRef>2024-11-12</ns5:DataFrameRef>
                <ns5:DatedVehicleJourneyRef>SE:022:ServiceJourney:1234567-1234567</ns5:DatedVehicleJourneyRef>
            </ns5:FramedVehicleJourneyRef>
            <ns5:Monitored>false</ns5:Monitored>
            <ns5:DataSource>DinTur</ns5:DataSource>
            <ns5:EstimatedCalls>
                <ns5:EstimatedCall>
                    <ns5:StopPointRef>SE:000:Quay:9022000000001001</ns5:StopPointRef>
                    <ns5:Order>1</ns5:Order>
                    <ns5:Cancellation>false</ns5:Cancellation>
                    <ns5:AimedDepartureTime>2024-11-12T17:25:00+01:00</ns5:AimedDepartureTime>
                    <ns5:ExpectedDepartureTime>2024-11-12T17:25:00+01:00</ns5:ExpectedDepartureTime>
                    <ns5:ExpectedDeparturePredictionQuality>
                        <ns5:PredictionLevel>unconfirmed</ns5:PredictionLevel>
                    </ns5:ExpectedDeparturePredictionQuality>
                </ns5:EstimatedCall>
                <ns5:EstimatedCall>
                    <ns5:StopPointRef>SE:000:Quay:9022000000002001</ns5:StopPointRef>
                    <ns5:Order>2</ns5:Order>
                    <ns5:Cancellation>false</ns5:Cancellation>
                    <ns5:AimedArrivalTime>2024-11-12T17:25:15+01:00</ns5:AimedArrivalTime>
                    <ns5:ExpectedArrivalTime>2024-11-12T17:25:15+01:00</ns5:ExpectedArrivalTime>
                    <ns5:ExpectedArrivalPredictionQuality>
                        <ns5:PredictionLevel>unconfirmed</ns5:PredictionLevel>
                    </ns5:ExpectedArrivalPredictionQuality>
                    <ns5:AimedDepartureTime>2024-11-12T17:25:15+01:00</ns5:AimedDepartureTime>
                    <ns5:ExpectedDepartureTime>2024-11-12T17:25:15+01:00</ns5:ExpectedDepartureTime>
                    <ns5:ExpectedDeparturePredictionQuality>
                        <ns5:PredictionLevel>unconfirmed</ns5:PredictionLevel>
                    </ns5:ExpectedDeparturePredictionQuality>
                </ns5:EstimatedCall>
                <ns5:EstimatedCall>
                    <ns5:StopPointRef>SE:022:Quay:9022000000003001</ns5:StopPointRef>
                    <ns5:Order>3</ns5:Order>
                    <ns5:Cancellation>false</ns5:Cancellation>
                    <ns5:AimedArrivalTime>2024-11-12T18:20:00+01:00</ns5:AimedArrivalTime>
                    <ns5:ExpectedArrivalTime>2024-11-12T18:20:00+01:00</ns5:ExpectedArrivalTime>
                    <ns5:ExpectedArrivalPredictionQuality>
                        <ns5:PredictionLevel>unconfirmed</ns5:PredictionLevel>
                    </ns5:ExpectedArrivalPredictionQuality>
                </ns5:EstimatedCall>
            <ns5:IsCompleteStopSequence>true</ns5:IsCompleteStopSequence>
        </ns5:EstimatedVehicleJourney>
    </ns5:EstimatedJourneyVersionFrame>
</estimatedTimetableDeliveryStructure>