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DATEXII Extension SituationRecordExtension

The element SituationRecordExtension provides an extension to describe additional information about a situation element observation and how the values from this observation are determined. Additionally, the extension includes a method to assign a level of priority to a situation element.

The structure is as follows:

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Elements

Element SituationRecordExtended

Contains the three subelements: ObservationDetermination, ObservationReport, and DigitalInformationMessagePriority.

Subelement ObservationDetermination

The ObservationDetermination element describes how the observation parameters from the ObservationReport section are determined.

Element Type Mandatory Domain Description
cessationEvidenceLevel Integer No 0-100 Indicates the certainty level that the situation element no longer occurs, where 0 is uncertain and 100 is certain.
elaboratedConfidenceDeterminationType ConfidenceDeterminationTypeEnum No aggregatedObservationReports, fullyManagedDataGenerationProcess, multipleTrustedSourcesReport, semiControlledDataGenerationProcess, singleTrustedSourceReport Provides context about the type of information management process of the source(s).
elaboratedSupplierObservationConfidence Integer No 0-100 Indicates the reliability of the supplier on a scale of 0 to 100, where 0 is unreliable and 100 is reliable.
persistenceDeterminationType PersistenceDeterminationTypeEnum Yes managedByAutomation, managedManually, managedSemiAutomatically, timeDegradingSinceLastObservation Describes the method used to determine the level of evidence that the situation element still occurs.
persistenceEvidenceLevel Integer Yes 0 - 100 Indicates the certainty level that the situation element still occurs, where 0 is uncertain and 100 is certain.

Subelement ObservationReport

The ObservationReport element is used to record additional information about an incident for the benefit of a Traffic Management Center. The values of the underlying attributes are derived from the combination of one or more source messages.

Element Type Mandatory Domain Description
incidentManagementMessageId String No N/A Contains the unique identification of the corresponding Incident Management source message.
isProtected Boolean No true, false Indicates whether a road inspector is present at the situation described in the situation element.
knownByTmc Boolean No true, false Indicates whether the situation element is known to a Traffic Management Center.
knownByTmcSince DateTime No UTC Date and Time (Zulu notation) The time in UTC when the situation element became known to the Traffic Management Center.
sourceQuantity Integer No Integer The number of supplier sources the situation element is based on.

XML Example ObservationReport and ObservationDetermination

<sit:_situationRecordExtension>
    <sit:situationRecordExtended>
    <srx:observationDetermination>
        <srx:elaboratedSupplierObservationConfidence>100</srx:elaboratedSupplierObservationConfidence>
        <srx:elaboratedConfidenceDeterminationType>fullyManagedDataGenerationProcess</srx:elaboratedConfidenceDeterminationType>
        <srx:persistenceEvidenceLevel>50</srx:persistenceEvidenceLevel>
        <srx:persistenceDeterminationType>managedByAutomation</srx:persistenceDeterminationType>
        <srx:cessationEvidenceLevel>0</srx:cessationEvidenceLevel>
    </srx:observationDetermination>
    <srx:observationReport>
        <srx:knownByTmc>true</srx:knownByTmc>
        <srx:knownByTmcSince>2001-12-17T09:30:47Z</srx:knownByTmcSince>
        <srx:isProtected>false</srx:isProtected>
        <srx:sourceQuantity>2</srx:sourceQuantity>
        <srx:incidentManagementMessageId>LCM</srx:incidentManagementMessageId>
    </srx:observationReport>
    </sit:situationRecordExtended>
</sit:_situationRecordExtension>

Subelement DigitalInformationMessagePriority

The DigitalInformationMessagePriority element can be used to describe a priority level assigned by road operators for a Digital Information Message.

Element Type Mandatory Domain Description
priorityIndex PriorityIndex Yes 0-100 Contains a value between 0 and 100, where 100 represents the highest priority and 0 represents none.

XML Example DigitalInformationMessagePriority

<sit:_situationRecordExtension>
    <sit:situationRecordExtended>
        <srx:digitalInformationMessagePriority>
            <srx:priorityIndex>80</srx:priorityIndex>
        </srx:digitalInformationMessagePriority>
    </sit:situationRecordExtended>
</sit:_situationRecordExtension>
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