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Re: [railML3.3] Signal combinations [message #4107 is a reply to message #4105] Tue, 18 August 2026 16:22 Go to previous messageGo to previous message
Thomas Nygreen is currently offline  Thomas Nygreen
Messages: 137
Registered: March 2008
Senior Member
Dear Dominik,

This decision was made after the 44th railML conference in Rome in November 2023, and applied in the modelling of railML 3.3.[1] If we discover cases relying on implicit ordering, we will introduce sequence numbers to make them explicit. For 3.4 the ETCS working group have recommended to make the previously optional linearLocation/associatedNetElement/@sequence required.[2]

[1] https://development.railml.org/railml/version3/-/work_items/ 520
[2] https://development.railml.org/railml/version3/-/work_items/ 714

Best regards,
Thomas

Thomas Nygreen – Common Schema Coordinator
railML.org (Registry of Associations: VR 5750)
Altplauen 19h; 01187 Dresden; Germany www.railML.org

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