Dev:Railway station ownership
In this example, railML.org will consider a way to represent the fact “railway station X is located in country Y”
A real-world example of this concept can be found in the OpenRailwayPap defined for the Děčín–Dresden-Neustadt railway 6240 line. This line is operated by two railway operation managers Správa železnic of the Czech Republic and Deutsche Bahn Netz of Germany. Schöna is a German railway station and Dolní Žleb is a Czech one. This example is based on Schöna.
In railML®, countries are present in the infrastructure manages code list. The fact “railway station X is located in country Y” should be decomposed into the following ones:
• railway station X has track Z
• track Z is managed by infrastructure manager J
• infrastructure manager J is of country Y.
The last fact is already present in the code list of railML®. The user should define the first two ones.
The “railway station X has track Z” fact is represented by <propEquipment> child of an ocp.
In railML®, “track Z is managed by infrastructure manager J” fact is represented by the <ownerChange> element of infrastructure subschema referring to <infrastructureManager> ones of metadata.
They affect the definition of the railway tracks. Every railway track should have an <ownerChange> at the beginning of the track positioned at zero coordinate. But also, the additional semantic constraints apply like for the <speedChange>:[1]
• Only applies if speedChanges (ownerChange) are exported at all [as they are not required by XSD (editor's comment)].
• If both directions are accessible, then <ownerChange> should also be defined for the <trackEnd>
References
- ↑ railML2 <speedChange> semantic constraints revision (link to the railML® website)