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Re: Infrastructure semantics [message #251 is a reply to message #249]

Tue, 10 May 2011 09:03

tuomas.tiihonen
Messages: 15
Registered: May 2011

Junior Member

>> Could OCP have different heads (heads could be used for resolving
>> orientation of the train in relation to stop)? So that line would link
>> from ocpA head1 to ocpB head2.
>
> Would you be so kind to specify this question?

If two OCPs are linked together how can you know which side of the OCP the
train enters the OCP?

I will try to illustrate:

Track: "="
Station OCP: /////OCP////
H1 = Head1
H2 = Head 2
=========H1/////////OCP1/////////H2=============H1//////OCP2 /////H2===========(this
connects back to OCP1/H1)

Now if I make connection from OCP1 to OCP2 the connection would know that
it starts from OCP1->Head2 and ends at OCP2->Head1. This way the data
tells the exact orientation of the train when it arrives from OCP1 to
OCP2. But I could also make connection from OCP1 head1 to OCP2 head2 and
again I know which side of the OCP the train comes from (if illustrated,
this example would make loop).

If in other hand you do not specify whether the train comes from head 1
side or head 2 side you can't know the orientation of the train in
relation to the stop. In essence when you make connection between two OCP
it can be interpreted as the train would arrive the station from two
different sides and you can't know which.

I use term "connection" loosely here as I am not quite sure what is the
correct term in RailML in this context.

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[Message index]

		Infrastructure semantics By: tuomas.tiihonen on Fri, 06 May 2011 11:33
		Re: Infrastructure semantics By: coordination on Mon, 09 May 2011 16:31
		Re: Infrastructure semantics By: tuomas.tiihonen on Tue, 10 May 2011 09:03
		Language-sensitive names By: Susanne Wunsch railML on Thu, 12 May 2011 11:15
		Re: Language-sensitive names By: tuomas.tiihonen on Thu, 12 May 2011 14:55
		Re: Language-sensitive names By: Susanne Wunsch railML on Thu, 12 May 2011 23:11
		Re: Language-sensitive names By: tuomas.tiihonen on Fri, 13 May 2011 07:49
		Ocp Timezones By: Christian Rahmig on Mon, 16 May 2011 09:24
		Re: Ocp Timezones By: tuomas.tiihonen on Mon, 16 May 2011 14:58
		Re: Ocp Timezones By: Christian Rahmig on Mon, 16 May 2011 21:34
		Re: Ocp Timezones By: Joerg von Lingen on Tue, 17 May 2011 07:07
		Re: Ocp Timezones By: Susanne Wunsch railML on Wed, 18 May 2011 09:43
		Re: Ocp Timezones By: Christian Rahmig on Sat, 21 May 2011 12:44
		Re: Ocp Timezones By: tuomas.tiihonen on Mon, 23 May 2011 07:40
		Re: Ocp Timezones By: tuomas.tiihonen on Wed, 18 May 2011 09:50

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