Dev:Border between infrastructure managers and countries

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The overarching objective of the EU Directive 2012/34/EU is to establish a single European railway area. Contributing to this objective is the requirement for improved cooperation of infrastructure managers and ‘cross-border agreements’ to enable seamless operations for train paths crossing borders, or ‘handover points’ (defined in [1] as “the point where legal responsibility changes between the infrastructure managers”).

Border between infrastructure managers Správa železnic in the Czech Republic and Deutsche Bahn Netz in Germany

The photo shows an example of a ‘handover point’ at the Germany-Czech Republic border on the Děčín to Dresden-Neustadt 6240 railway line. This line is operated by two different rail operating companies, Správa železnic in the Czech Republic and Deutsche Bahn Netz in Germany, meaning there is a change in infrastructure managers.

In the source code, shown below, there are two tracks belonging to two infrastructure managers. Ownership is represented by <ownerChange> elements. Further information is given in the <infrastructureManager> element and corresponding code list (link to the railML® website). 

<metadata>
  <organizationalUnits>
    <infrastructureManager id="ima01" code="DBN"/>
    <infrastructureManager id="ima02" code="SZD"/>
  </organizationalUnits>
</metadata>
..
<track id="tr01">
  <trackTopology>
    <trackBegin id="tb01" pos="0" absPos="0">..</trackBegin>
    <trackEnd id="te01" pos="500" absPos="500">..</trackEnd>
  </trackTopology>
  <trackElements>
    ..
    <ownerChange id="och01" pos="0" absPos="0" infrastructureManagerRef="ima01"/>
    ..
  </trackElements>
</track>
<track id="tr02">
  <trackTopology>
    <trackBegin id="tb02" pos="0" absPos="500">..</trackBegin>
    <trackEnd id="te02" pos="500" absPos="1000">..</trackEnd>
  </trackTopology>
  <trackElements>
    ..
    <ownerChange id="och02" pos="0" absPos="500" infrastructureManagerRef="ima02" name="Bahnverw.grenze Bad Schandau Gr"/>
    ..
  </trackElements>
</track>

It is important to ensure the correct definition of the railway tracks. Every railway track should have an <ownerChange> at the beginning of the track positioned at a zero coordinate. Additional semantic constraints apply for the <speedChange> [2].

References

  1. ↑ TAP TSI and TAF TSI Sector Handbook for the Communication between Railway Undertakings and Infrastructure Managers (RU/IM Telematics Sector Handbook) Submitted on 20th October 2022 (external link)
  2. ↑ railML2 <speedChange> semantic constraints revision forum post (link to the railML® website)
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