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Re: [railml3] Signal types and functions [message #2134 is a reply to message #2131]

Sat, 09 February 2019 09:32

Jörg von Lingen
Messages: 91
Registered: March 2016

Member

Dear all,

we (IS/IL coordinators) have discussed the differences of <signalIS>@type and <signalIL>@signalFunction (may be renamed
to <signalIL>@function):

<signalIS>@type is about the physical types of objects one will call "signal"

<signalIL>@signalFunction is about the function of the signal as seen from the interlocking
"main" could be seen as a duplication but its meaning is more anything else but the specific uses - "The main signal is
a normal signal for train traffic protection which is neither used as block, entry, exit nor intermediate signal."

<signalIL>@isVirtual is especially considering ETCS systems were the interlocking in its data still has signals which
are switched to particular aspects. But on the outside there are only marker boards to identify the position of these
interlocking only signals. In that sense they are physical outside but virtual for the interlocking.
Whereas <signalIS>/<signalConstruction>@type="virtual" really means no physical object outside.

<signalIS>@switchable is a real addition to <signalConstruction>@type because there are signals of type "semaphore"
which may be switchable or not, e.g. electrification signals like "main switch off". Of course, with "light" signals one
can assume they are always switchable.

Regards,
Jörg von Lingen - Interlocking Coordinator

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[Message index]

		[railml3] Signal types and functions By: Thomas Nygreen JBD on Fri, 08 February 2019 20:38
		Re: [railml3] Signal types and functions By: Jörg von Lingen on Sat, 09 February 2019 09:32
		Re: [railml3] Signal types and functions By: Thomas Nygreen JBD on Mon, 11 February 2019 17:24
		Non-switchable semaphore signals (was: Re: [railml3] Signal types and functions) By: Tobias Bregulla on Mon, 11 February 2019 21:07
		Re: [railml3] Signal types and functions By: christian.rahmig on Mon, 11 February 2019 15:51
		Re: [railml3] Signal types and functions By: Thomas Nygreen JBD on Tue, 12 February 2019 14:34
		Re: [railml3] Signal types and functions By: Torben Brand on Mon, 18 February 2019 11:26
		Re: [railml3] Signal types and functions By: christian.rahmig on Mon, 18 February 2019 14:36
		Re: [railml3] Signal types and functions By: Torben Brand on Mon, 18 February 2019 18:15
		Re: [railml3] Signal types and functions By: Thomas Nygreen JBD on Mon, 18 February 2019 23:26
		Re: [railml3] Signal types and functions By: Jörg von Lingen on Thu, 21 February 2019 06:13
		Re: [railml3] Signal types and functions By: christian.rahmig on Mon, 18 February 2019 14:55

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