Home » railML newsgroups » railml.rollingstock » railML 2.3: Formation attributes shall have values > 0
Re: railML 2.3: Formation attributes shall have values > 0 [message #1321 is a reply to message #1320] Wed, 21 October 2015 15:08 Go to previous messageGo to previous message
Dirk Bräuer is currently offline  Dirk Bräuer
Messages: 311
Registered: August 2008
Senior Member
Dear Philip,

no objections from our side: Values =0 may be disallowed _if_ the
corresponding attribute is optional.

But please be careful with attributes such as "formation/tareWeight" or
"nettoWeight": What is the difference between both? In German, the rule
is "Tara = Brutto - Netto". Therefore, tareWeight may be zero if
bruttoWeight=nettoWeight and if tareWeight=Tara.

However, in the English wiki it is written:
tareWeight: total tare weight (empty vehicles)
nettoWeight: total net weight (payload only)

which is a little bit confusing for me. ("Payload only" suggests that
nettoWeight is the load and tareWeight is the mass of the empty formation.)

If you disallow these values to be zero, you should define which is to
be used for what. In my opinion, either tareWeight or nettoWeight must
be allowed to be zero in case of formations of vehicles with no payload
(engines/locomotives running light).

With best regards,
Dirk.

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