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:
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>