Missing property: operational length of platform

[MathiasVDA]

I see a structural property "length" that can be used in combination with a platform entity. But I don't see the "operational length". This is the length of the platform that a train can use to load/unload passengers.

This length is always smaller than the structural length and is influenced by:

• the location of the light signals
• the location of the panels indicating the end of the platform to passengers
• the arrival direction of the train (train needs to stop in front of the lightsignal)
• the departing direction of the train (train needs to be completely on the applicable side of the light signal the applies for the departing direction)

I would propose to add the semantic property but not as a value to be supplied by the infrastructure manager but for which the values will be infered from the position of a platform and the relevant signals (both lightsignals and the signals that indicate the end of the platform for passengers).

[Certiman]

We have added in comments of era:length (added marking):

Length of an infrastructure object which can be 
- a section of line (For operational length, use era:lengthOfSectionOfLine), 
- a tunnel (For operational length, use era:lengthOfTunnel), 
- a platform (**For its usable length, use era:lengthOfPlatform**), 
- a siding (For its usable length, use era:lengthOfSiding), and 
- length of other areas such as 
  - a non-stopping area (accuracy +- 10m), 
  - a walkway, 
  - an evacuation and rescue point.

Vehicle length.

It would allow to use era:lengthOfPlatform in the above cases, if at least some directionality is combined with that parameter, using era:Orientation. However, would not solve the 4 cases, as you would have to model a 2x2 directions matrix...