Home » railML newsgroups » railml.interlocking » Switch/Derailer/Crossing in Overlap requires a position ("inPosition" attribute either optional or needs an additional state)
Switch/Derailer/Crossing in Overlap requires a position [message #3108] Tue, 25 July 2023 14:30 Go to next message
heidrun.jost@thalesgroup. is currently offline  heidrun.jost@thalesgroup.
Messages: 5
Registered: December 2022
Junior Member
Dear all,

for the route overlap definition, a position is required for a switch/derailer/crossing in an overlap.

But sometimes this position is not available, because a) the overlap ends before the heart or b) does not matter.

Using only the TvdSection is not a solution, because it could include several switches/derailers/crosings, which would then be to much.

<overlap id="IL_FMkw4WGpByf8V0i0u539i9" length="55">
<designator register="_costId" entry="Overlap:BGS_MR#1564"/>
<requiresSwitchInPosition>
<relatedSwitchAndPosition inPosition="right">
<refersToSwitch ref="IL_Z8wATeoLQQL7NLmHuC2c8Ca"/>
</relatedSwitchAndPosition>
</requiresSwitchInPosition>
<hasTvdSection ref="TVD_Z8wATeoLQQL7NLmHuC2c8Ca"/>
</overlap>

So the parameter "inPosition" shall become either optional or provide an additional option for these cases.

Best regards,
--
Heidrun Jost
Data Manager TMS Norway
Ground Transportation Systems

Phone: +49 (0) 30 688306 423
Schützenstr. 25 10117 Berlin Germany

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Re: Switch/Derailer/Crossing in Overlap requires a position [message #3109 is a reply to message #3108] Thu, 27 July 2023 08:18 Go to previous message
Jörg von Lingen is currently offline  Jörg von Lingen
Messages: 115
Registered: March 2016
Senior Member
Dear all,

it sounds reasonable to have the option to define
switch/derailer/crossing but saying the particular position does not
matter. In order to have a clear solution for general use I suggest to
extend the list of possible values for @inPosition by the value
"indifferent".

---
Dr.-Ing. Jörg von Lingen - Interlocking scheme coordinator
railML.org (Registry of Associations: VR 5750)
Phone Coordinator: +49 351 87759 40; railML.org: +49 351 47582911
Altplauen 19h; 01187 Dresden; Germany www.railml.org

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