IL:dangerPoint

Documentation

Syntax

Autoexport from the XML-Schema for element IL:dangerPoint of railML® version 3.2 UML-visualization of IL
Documentation	position beyond the exit signal up to where a train is likely to be safe
Subschema	interlocking
Parents*	dangerPoints
Children	belongsToOperationalPoint (0..*), designator (0..*), hasCommand (0..*), hasIndication (0..*), lastSupervisedSectionBeforeDangerPoint (0..1), objectName (0..*), situatedAtTrackAsset (0..1)
Attributes: distance: Distance in metres from exit signal to danger point. Optional because one may also derive this distance from the track asset where the danger point is situated. (optional; xs:decimal), releaseSpeed: Release speed in km/h associated with the danger point. (optional; xs:decimal), elementNumber: element number of the object for internal referencing in the engineering data (optional; xs:nonNegativeInteger), id: unique identifier (obligatory; xs:string; patterns: (urn:uuid:)?[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}|\{[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}\})
*Notice: Elements may have different parent elements. As a consequence they may be used in different contexts. Please, consider this as well as a user of this wiki as when developing this documentation further. Aspects that are only relevant with respect to one of several parents should be explained exclusively in the documentation of the respective parent element.

Autoexport from the XML-Schema for element IL:dangerPoint of railML® version 3.1 UML-visualization of IL
Documentation	position beyond the exit signal up to where a train is likely to be safe
Subschema	interlocking
Parents*	dangerPoints
Children	any (0..*), designator (0..1), lastSupervisedSectionBeforeDP (0..1), situatedAtTrackAsset (0..1)
Attributes: distance: Distance in metres from exit signal to danger point. Optional because one may also derive this distance from the track asset where the danger point is situated. (optional; xs:decimal), releaseSpeed: Release speed in km/h associated with the danger point. (optional; xs:decimal), id: unique identifier (optional; xs:ID; patterns: (urn:uuid:)?[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}|\{[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}\})
*Notice: Elements may have different parent elements. As a consequence they may be used in different contexts. Please, consider this as well as a user of this wiki as when developing this documentation further. Aspects that are only relevant with respect to one of several parents should be explained exclusively in the documentation of the respective parent element.

Changes 3.1→3.2

The children have changed.

The attributes have been changed.

Best Practice / Examples

A route exit may refer to a danger point. The danger point defines the position in advance of the destination signal up to where a train is likely to be safe. The danger point is not necessarily related to a train detection element.

The element can take the following information:

• @distance – This is the distance in meters from the destination signal to the physical danger point.
• @releaseSpeed – The release speed in km/h for release from controlled braking curve associated with the danger point. A release speed is a speed limit under which the train is allowed to run in the vicinity of the EoA (End of Authority: here routeExit or destinationPoint) when the target speed is zero. One release speed can be associated with the Danger Point.
• <lastSupervisedSectionBeforeDP> – This is the reference to the last TVD section which lies completely before the danger point. It is used when the danger point is situated at the end of a TVD section.
• <situatedAtTrackAsset> – This is the reference to the track asset the danger point is located. It is used when the danger point is situated in the middle of a TVD section or beyond any TVD section in case of not supervised tracks.

<dangerPoint id="dp01" distance="300.0" releaseSpeed="0.0">
        <designator register="_SimpleRegister" entry="DPe69P2"/>
        <lastSupervisedSectionBeforeDP ref="B69W03T"/>
        <situatedAtTrackAsset ref="B01T"/>
</dangerPoint>