Introduce <platformEdge>

Description

Discussions in the railML use case developer groups have shown that there is a need to clearly distinguish between platforms and platform edges. The railML 3.1 solution (using for both types of objects) is not sufficient for all use cases / scenarios.

Background

In railML 2.x, the element <platformEdge> exists. There is no element for platforms (owning platform edges). In railML 3.x both functional elements shall be modelled.

Links

• Forum discussion:
  • Thomas Nygreen, 08.02.2019: [https://www.railml.org/forum/index.php?t=msg&th=650&goto=2133&#msg_2133]
• Trac ticket:
  • #438 (closed)
• Wiki documentation:
  • IS:platform: [https://wiki3.railml.org/wiki/IS:platform]
  • IS:platformEdge: [https://wiki3.railml.org/wiki/IS:platformEdge]

Proposed solution railML 3.2

Introduce new functional infrastructure element <platformEdge> (derived from FunctionalInfrastructureEntity) with attributes / child elements:

• @belongsToParent to reference a parent platform edge (useful for grouping platform edges with different features)
• @belongsToPlatform to reference the platform where the platform edge belongs to.
• @height to define the height of the platform edge in meters.
• <length> to define the length of the platform edge in meters.

In parallel, the element <platform> needs to be adapted:

• deprecate @height (as this is only relevant for platform edges)
• deprecate <length> (as this is only relevant for platform edges)