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[railML3] Construction of virtual signals [message #3317] Mon, 09 September 2024 11:26
Larissa Zhuchyi is currently offline  Larissa Zhuchyi
Messages: 49
Registered: November 2022
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Dear all

2024-01-22 railML.org suggested the new semantic constraint IS:005 [1] for the representation of the railway signals. Please let us know if you do not agree with it withing the following month.

The background is as follows:

In railML3 <signalIS> has child <signalConstruction> with attribute @type with one of enumeration values "virtual: signal has no physical presence on the track. Command is passed in some other way, e.g. radio".

<signalConstruction> has also other attributes: @height and @positionAtTrack. These surely seem to be intended for physically present entities.

Suggested semantic constraint is as follows: signalConstruction/@height and signalConstruction/@positionAtTrack should not be used with signalConstruction/@type = "virtual".

[1] https://wiki3.railml.org/wiki/Dev:Semantic_Constraints

Sincerely,

Larissa Zhuchyi – Ontology Researcher
railML.org (Registry of Associations: VR 5750)
Altplauen 19h; 01187 Dresden; Germany www.railML.org

[Updated on: Mon, 09 September 2024 11:30]

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