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A train with ETCS? [message #1115] Tue, 02 October 2012 22:26 Go to previous message
Dirk Bräuer is currently offline  Dirk Bräuer
Messages: 311
Registered: August 2008
Senior Member
Dear all,

for the usage of RailML in Austria in conjunction with the opening of ETCS
on Westbahn line at the end of this year, we need to describe whether a
train operates with ETCS or not.

Therefore, it is necessary to use the element
<train>.<trainPartSequence>.<equipmentUsage> with its attribute 'type'. It
has the type tNationalSystemsType. Now the problem:

tNationalSystemsType has everything - but no ETCS...

For the moment, it would be sufficient to extend the enumeration
tNationalSystemsType with either one "ETCS" value in general or "ETCS
Level 1", "ETCS Level 2" a. s. o. values.

The better solution would be to have a unification of
- rail:etcs,
- rail:nationalSystem,
- rail:equipmentUsage.

All three lead to the same: A train protection system
(Zugbeeinflussungsanlage). The 'nationalSystem' element is very good (with
a very bad name - from my opinion) but why is 'etcs' outside
'nationalSystem'? (You do not really want to tell me that ETCS is
international? No, since there is already the 'srsVersion' attribute...)
Both should be unified as "trainProtectionSystem" or such.

And the same type should be used
- for vehicles,
- at a train,
- at a track,
all three in sequences: A vehicle can support non, one or more
trainProtectionSystems, a track can support some trainProtectionSystems.
Normally, a train would operate with none or one trainProtectionSystem
only in one section, but there may also be two trainProtectionSystem with
different tasks - one for securing the maximum speed, and another for
securing the main signals. For instance, in Germany INDUSI and ZUB262
operate simultaneously in trains with tilting technology.

Would be nice if we could get
- a short solution with RailML 2.2
- a good solution with RailML 3.0…
;-)

Best regards,
Dirk.
 
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