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Re: Questions about "Category" and "Rosterings" [message #1265 is a reply to message #1264] Thu, 11 September 2014 16:51 Go to previous messageGo to previous message
Andreas Tanner is currently offline  Andreas Tanner
Messages: 52
Registered: March 2012
Member
Dear Utah,

welcome to the railML community. You are asking interesting questions!

Regarding category, the semantics is not completely defined within the
standard. Our customers use the train category mostly for distinguishing
local / regional / long distance etc. passenger trains and freight
trains. Transfer trips (purely operational trains that run outside
stations and do have an official train path) would use the "deadRun"
attribute.
Our system models different vehicle preparation time requirements and
staff rules depending on the train category.

We don't use categoryPriority. I would expect it to have integer value
as in the wiki example given, but it is defined as string.

Your questions on join/split operations is difficult. railML uses trains
http://wiki.railml.org/index.php?title=TT:train to express joins and
splits. One might criticize this approach for its implication that one
needs to construct trains to model vehicle shunting. Syntactically it is
possible to put multiple blockPartRefs into one blockPartSequence, but I
have never seen such data and it would be ambiguous if the number of
blockPartRefs changes from blockPartSequence to blockPartSequence.

The attribute blockGroupNumber is optional. Our system uses it for
defining the line in the roster matrix representation of the circulation.

I hope this helps. Best,

--Andreas.

Am 04.09.2014 09:10, schrieb Yutaka Manchu:
> Dear All,
>
> Would you mind answering the following questions for me
>
> 1. Category
> Regarding to the wiki, category means
> '“train typeâ€

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