| Infrastructure questions modelling a station [message #239] |
Sun, 30 January 2011 12:51  |
Alfonso Gonzalez
Messages: 3
Registered: July 2009
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Junior Member |
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I am modelling a sample station using the infrastructure schema or
Railml, but I am having problems with the balise/baliseGroup element and
with the orientation attribute of the connection element.
For balises and balise groups the infrastructure define the balises and
balise and balise group. When I am trying to model a ETCS balise group I
find myself with the following problem.
In ETCS a balise group is composed by balises, but the baliseGroup
element only allow references to already existing balises. Each balise
has to be defined individually but that implies that information that
belongs to the group has to be repeated for each balise (!?)
For example:
LinkReactionAscending/Descending
LinkingAccuracy
GroupID
CountryID
Shouldn't it be better to have the balise contained in side the
baliseGroup element and define at baliseGroup level the attributes with
information related to the balise group?
If I define a multiple balise group do I have to repeat the informaton
which belongs to the group on each single balise?
I my attempt I have modelled a balise group as follows:
<ocsElements>
<signals>
<signal id="E2" pos="120.000" type="main" dir="up"/>
</signals>
<balises>
<balise id="BG01_0" countryID="357" groupID="01" pos="100.000" ndx="0"
dir="up"/>
<balise id="BG01_1" countryID="357" groupID="01" pos="100.003" ndx="1"
dir="up"/>
<balise id="BG01_2" countryID="357" groupID="01" pos="100.006" ndx="2"
dir="up"/>
<baliseGroup>
<baliseRef ref="BG01_0"/>
<baliseRef ref="BG01_1"/>
<baliseRef ref="BG01_2"/>
</baliseGroup>
</balises>
</ocsElements>
There is a balise group "BG01" which is composed of three balise groups.
NDX is the equivalent to the the ETCS language variable N_PIG. I find it
cumbersome to repeat for each balise the attributes ndx, dir, groupID
and countryID.
Regards and thanks in advance.
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