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[railML3] loadingGauge element and definition of profile [message #3027] Tue, 05 July 2022 00:22 Go to previous message
Jörgen Strandberg is currently offline  Jörgen Strandberg
Messages: 15
Registered: August 2017
Junior Member
I propose these semantic rules for the loadingGauge element:
1. Define at least one kinematicProfile subelement, or one staticProfile subelement, or set the @code value.
2. For the ETCS use case, define one loadingGauge element per supported loading gauge profile.
3. For the ETCS use case, set one of these @code values: "GA", "GB", "GC", "G1"

Rationale:
The code attribute may only take one value, such as "GB", but the ETCS variable M_LINEGAUGE can specify a combination of profiles, such as 0b00000110 meaning "GA" and "GB" .
Hence, one loadingGauge element is needed for each profile that is suitable for the linear extension.


Background:

This documentation exists in the schema and on the wiki <https://wiki3.railml.org/wiki/IS:loadingGauge>:
code: code name of the train loading gauge; use value from the separate codelist file 'TrainClearanceGauges.xml'/trainClearanceGauge (optional; xs:string)


At least these trainClearanceGauge elements are in 'TrainClearanceGauges.xml':
  <trainClearanceGauge code="GA">
    <description>stucture gauge GA according European standard</description>
    <validFor>interoperable</validFor>
  </trainClearanceGauge>
  <trainClearanceGauge code="GB">
    <description>stucture gauge GB according European standard</description>
    <validFor>interoperable</validFor>
  </trainClearanceGauge>
  <trainClearanceGauge code="GC">
    <description>stucture gauge GC according European standard</description>
    <validFor>interoperable</validFor>
  </trainClearanceGauge>
  <trainClearanceGauge code="G1">
    <description>Multilateral gauge or international gauge G1 other than GA, GB and GC as defined in European standard.</description>
    <validFor>interoperable</validFor>
  </trainClearanceGauge>
...

Those profile types are also the ones that are supported by ETCS and defined in SUBSET-026, v360 (see below).
7.5.1.67.1	M_LINEGAUGE
Name			Line gauge
Description		Defining which loading gauge(s) are permitted on a line (refer to TSI INF)
Length of variable	8 bits
Resolution/formula	Bitset
Special/Reserved Values
	xxxx xxx1	G1
	xxxx xx1x	GA
	xxxx x1xx	GB
	xxxx 1xxx	GC
	00000000	Spare
	xxx1 xxxx	Spare
	xx1x xxxx	Spare
	x1xx xxxx	Spare
	1xxx xxxx	Spare
 
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