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| = Other information sources =
| | {{mirror}} |
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| This site is intended to collect the schema changes by topics, that influence the XML output. As it starts as a stub please refer to railML forum and SVN too.
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| = railML schema changes since version 2 =
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| == Between railML 2.0 and railML 2.1 ==
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| Unfortunately no information available.
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| == Between railML 2.1 and railML 2.2 ==
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| === Timetable subschema ===
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| To be filled.
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| === Infrastructure subschema ===
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| ==== {{IS:Doc|ocp}}/{{Attr|@abbrevation}} ====
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| {|
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| |Fact:
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| | The {{Attr|abbrevation}} attribute in the {{IS:Tag|ocp}} element is declared deprecated.
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| |-
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| | Reason:
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| | There are multiple different abbreviations for single operation or control points. They can't be defined with one attribute.
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| |-
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| | Recommendation:
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| | Use the new {{IS:Tag|tsi}} and/or {{IS:Tag|designator}} elements instead.
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| |-
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| | Related Trac Tickets:
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| | [http://trac.assembla.com/railML/ticket/112 #112]
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| |-
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| | Related SVN Commits:
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| | [http://trac.assembla.com/railML/changeset/335 [335]], [http://trac.assembla.com/railML/changeset/439 [439]]
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| |-
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| | Old sample (railML 2.1):
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| <syntaxhighlight lang="xml">
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| <ocp ... name="Passau Hbf." abbrevation="NPA"/>
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| </syntaxhighlight>
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| |-
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| | New sample (railML 2.2):
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| <syntaxhighlight lang="xml">
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| <ocp ... name='Passau Hbf.' ...>
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| <tsi country="80"/>
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| <designator register='RL100' entry='NPA'/>
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| <designator register='ENEE' entry='80-26506-6'/>
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| <designator register='IBNR' entry='8000298'/>
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| <designator register='DB640' entry='Pa'/>
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| </ocp>
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| </syntaxhighlight>
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| |}
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| === Rollingstock subschema ===
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| === Common subschema ===
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| == Between railML 2.2 and railML 2.3 ==
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| === Timetable subschema ===
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| === Infrastructure subschema ===
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| ==== {{IS:Doc|trainRadio}}, {{IS:Doc|trainRadioChange}} ====
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| {|
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| |Fact:
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| | The {{IS:Tag|trainRadio}} element and {{IS:Tag|trainRadioChange}} element have been introduced.
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| |-
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| | Recommendation:
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| | Use the new {{IS:Tag|trainRadio}} and {{IS:Tag|trainRadioChange}} elements for defining conditions describing the train radio conditions along the track.
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| |-
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| | Related Trac Tickets:
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| | [http://trac.railml.org/ticket/43 #43]
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| |-
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| | Related SVN Commits:
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| | [http://trac.railml.org/changeset/630/railML [630]]
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| |-
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| | ocs element sample:
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| <syntaxhighlight lang="xml">
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| <ocsElements>
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| <trainRadioChanges>
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| <trainRadioChange id="trc01" pos="57.46" dir="up" radioSystem="GSM-R" broadcastCalls="true">
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| </trainRadioChange>
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| </trainRadioChanges>
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| </ocsElements>
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| </syntaxhighlight>
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| |-
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| | infra attributes sample:
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| <syntaxhighlight lang="xml">
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| <infraAttrGroups>
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| <infraAttributes id="ia01">
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| <trainRadio radioSystem="GSM-R" broadcastCalls="true" />
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| </infraAttributes>
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| </infraAttrGroups>
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| </syntaxhighlight>
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| |}
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| ==== {{IS:Doc|speedChange}}/{{Attr|@vMax}} ====
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| {|
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| |Fact:
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| | The parameter {{Attr|vMax}} in the {{IS:Tag|speedChange}} element has been modified so that it can also handle the value "end".
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| |-
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| | Recommendation:
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| | Use the new value "end" in order to mark the end of a temporary speed restriction.
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| |-
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| | Related Trac Tickets:
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| | [http://trac.railml.org/ticket/97 #97]
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| |-
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| | Related SVN Commits:
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| | [http://trac.railml.org/changeset/609/railML [609]]
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| |-
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| | sample:
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| <syntaxhighlight lang="xml">
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| <speedChange id="sc7" pos="256.7" vMax="end" dir="up" />
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| </syntaxhighlight>
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| |}
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| ==== {{IS:Doc|radiusChange}}/{{Attr|@geometryElementDescription}} ====
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| {|
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| |Fact:
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| | A new attribute named {{Attr|geometryElementDescription}} has been added to the {{IS:Tag|radiusChange}} element. It is an enumeration parameter, which provides the following entries that enable a more detailed description of transition curves:
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| * TS_cubicParabola
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| * TS_parabola4
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| * TS_clothoide; the usually used transition curve in modern railways, see [https://en.wikipedia.org/wiki/Euler_spiral English Wikipedia] and {{Deu|[https://de.wikipedia.org/wiki/Klothoide#Anwendung_im_Verkehrswegebau German Wikipedia]}} description
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| * TS_WienerBogen; a special transition curve used in Austria and Germany, see {{Deu|[https://de.wikipedia.org/wiki/Wiener_Bogen German Wikipedia]}} description
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| * TS_BlossBogen; a special transition curve widely in Germany, see {{Deu|[https://de.wikipedia.org/wiki/Blossbogen German Wikipedia]}} description
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| * TS_Sinusoide
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| * TS_Cosinusoide
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| * SC
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| * (any other)
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| |-
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| | Reason:
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| | So far, it was not possible to model transition curves in railML although they represent a basic track alignment feature.
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| |-
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| | Recommendation:
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| | Use the new {{Attr|geometryElementDescription}} attribute in the {{IS:Tag|radiusChange}} element for modelling the begin and end points of transition curves.
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| |-
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| | Related Trac Tickets:
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| | [http://trac.railml.org/ticket/251 #251]
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| |-
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| | Related SVN Commits:
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| | [http://trac.railml.org/changeset/616/railML [616]]
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| |-
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| | sample for transition curve begin:
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| <syntaxhighlight lang="xml">
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| <radiusChange ... geometryElementDescription='TS_clothoide' />
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| </syntaxhighlight>
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| |-
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| | sample for transition curve end:
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| <syntaxhighlight lang="xml">
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| <radiusChange ... geometryElementDescription='SC' />
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| </syntaxhighlight>
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| |}
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| ==== {{IS:Doc|tsi}} ====
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| {|
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| |Fact:
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| | The element {{IS:Tag|tsi}} has been marked deprecated.
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| |-
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| | Reason:
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| | Elements dedicated for the usage in conjunction with TAP TSI shall be replaced by a more generic approach.
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| |-
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| | Recommendation:
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| | Instead of the element {{IS:Tag|tsi}}, please use the {{IS:Tag|designator}} element with the new register entry "PLC" (Primary Location Code) for referencing a TAF TSI relevant name of an operational control point.
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| |-
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| | Related Trac Tickets:
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| | [http://trac.railml.org/ticket/252 #252]
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| |-
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| | Related SVN Commits:
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| | [http://trac.railml.org/changeset/611/railML [611]]
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| |-
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| | old sample (railML 2.2):
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| <syntaxhighlight lang="xml">
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| ...
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| </syntaxhighlight>
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| |-
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| | new sample (railML 2.3):
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| <syntaxhighlight lang="xml">
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| ...
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| </syntaxhighlight>
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| |}
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| ==== {{IS:Doc|line}}/{{Attr|@lineCategory}} ====
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| {|
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| |Fact:
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| | The optional attribut {{Attr|lineCategory}} has been added to the parameters of the element {{IS:Tag|line}}.
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| |-
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| | Reason:
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| | The European standard EN 15528 defines several line categories for classification of railway lines depending on allowed maximum axle load and meterload paramters.
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| |-
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| | Recommendation:
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| | Use the new paramter {{Attr|lineCategory}} within the element {{IS:Tag|line}} to define a line category according to EN 15528. The following values are possible:
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| * A
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| * B1, B2
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| * C2, C3, C4
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| * D2, D3, D4, D4xL
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| * E4, E5
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| * (any other)
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| |-
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| | Related Trac Tickets:
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| | [http://trac.railml.org/ticket/259 #259]
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| |-
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| | Related SVN Commits:
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| | [http://trac.railml.org/changeset/620/railML [620]], [http://trac.railml.org/changeset/621/railML [621]], [http://trac.railml.org/changeset/622/railML [622]]
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| |-
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| | sample:
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| <syntaxhighlight lang="xml">
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| <line ... lineCategory='E4' />
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| </syntaxhighlight>
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| |}
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| ==== {{IS:Doc|additionalName}}/{{Attr|@xml:lang}} ====
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| {|
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| |Fact:
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| | Although being optional, the attribut {{Attr|xml:lang}} should always be given in the {{IS:Tag|additionalName}} element.
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| |-
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| | Reason:
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| | In order to being able to correctly read the given additional name e.g. for an OCP, it is necessary to know in which language the additional name has been written.
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| |-
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| | Recommendation:
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| | Always use the optional paramter {{Attr|xml:lang}} when using the element {{IS:Tag|additionalName}}.
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| |-
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| | Related Trac Tickets:
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| | [http://trac.railml.org/ticket/263 #263]
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| |-
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| | Related SVN Commits:
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| | [http://trac.railml.org/changeset/629/railML [629]]
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| |-
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| | sample:
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| <syntaxhighlight lang="xml">
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| <ocp id="ocp_ΑΘΗΝ" name="ΑΘΗΝΑ">
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| <additionalName name="Ἀθῆναι" xml:lang="grc"/>
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| <additionalName name="ΑΘΗΝΑ" xml:lang="el-Grek"/>
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| <additionalName name="ATHINA" xml:lang="el-Latn"/>
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| <additionalName name="Athens" xml:lang="en"/>
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| <additionalName name="Athen" xml:lang="de"/>
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| <additionalName name="Athènes" xml:lang="fr"/>
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| </ocp>
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| </syntaxhighlight>
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| |}
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| ==== {{IS:Doc|crossedElement}} ====
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| {|
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| |Fact:
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| | New optional element {{IS:Doc|crossedElement}} has been added for the elements {{IS:Doc|levelCrossing}}, {{IS:Doc|bridge}} and {{IS:Doc|tunnel}}.
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| |-
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| | Reason:
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| | This implementation allows to model more specific information about natural and infrastructure landmarks that are crossed by a river, a railway line or a street.
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| |-
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| | Recommendation:
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| | If you want to define information about a natural or infrastructure landmark that you are going to cross with your track, please use the new element {{IS:Tag|crossedElement}}.
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| |-
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| | Related Trac Tickets:
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| | [http://trac.railml.org/ticket/271 #271]
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| |-
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| | Related SVN Commits:
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| | [http://trac.railml.org/changeset/629/railML [629]]
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| |-
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| | sample for bridge:
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| <syntaxhighlight lang="xml">
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| <bridge id="br01" name="Marienbrücke" pos="2050">
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| <crossedElements>
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| <crossedElement type="highway:cycleway" id="cw01" name="Elberadweg" pos="2200" />
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| <crossedElement type="highway:road" id="rd01" name="B6" pos="2150" />
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| <crossedElement type="natural:river" id="ri01" name="Elbe" pos="2100" />
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| </crossedElements>
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| </bridge>
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| </syntaxhighlight>
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| |}
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| === Rollingstock subschema ===
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| === Common subschema ===
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| [[Category:GeneralDescription]]
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