| Re: [railML2] Extension proposal: Stopping point reference for elements not of type <stopPost> [message #2565 is a reply to message #2554] |
Wed, 28 October 2020 10:52   |
Christian Rößiger
Messages: 62
Registered: March 2015
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Member |
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Hello Janne,
I can understand the background to your extensions in general. I'm not
an infrastructure expert, but from my point of view I have two comments
on this:
- The element <stopPost> provides an attribute "virtual". According to
the description in the railML-Wiki, it can be used to defines stop
positions for which there is no physical stop post on the track. If your
usecase is only about specifying the stopping position of a train, this
would be possible with this attribute.
- If you want to indicate explicitly that the train stops at a certain
infrastructure element (signal / switch) and the reference to this
element is important, the above solution is probably not an alternative
for you. But I would prefer not to use a generic attribute for
references to all possible infrastructure elements, because references
to elements are (as far as I can see) always type-specific in railML2.
Instead, I would provide one separate attribute or element per element
type (signalRef, switchRef and so on). The usage of an element would
have the advantage that additional element-specific information could be
included, e.g. on which end of a switch the train should stop exactly.
Kind regards
Christian Rößiger
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