TT:alternativeSectionTT

alternativeSectionTT
 

💡 (introduced with version 2.5) This element was introduced with version 2.5. Dieses Element wurde mit Version 2.5 eingeführt.

Schema description / Schemenbeschreibung

Position of alternativeSectionTT in the XML-Tree / Position von alternativeSectionTT im XML-Baum

• Parent: <alternativeSectionsTT>
• Children: <trackRef>, <runTimes>, <xs:any>

Multiplicity / Anzahl

[1..∞]

Semantics / Bedeutung

The element <alternativeSectionTT> describes data concerning the alternative path from one <ocpTT> to the next one in the order of the sequence. This includes references to the used infrastructure. The primary path is indicated in <sectionTT>. The alternative paths are to be used in a simulation, short term scheduling, dispatching decisions or data preparation for long term planning when the primary path is not available.

Das Element <alternativeSectionTT> beschreibt Daten, die ausgehend von einem <ocpTT> den alternativen Weg bis zum (laut sequence) nächsten <ocpTT> betreffen. Dazu gehört die Referenzierung der befahrenen Infrastruktur. Der primäre Weg wird in <sectionTT> angegeben. Die alternativen Weg(e) werden in Simulierungen o.ä. verwendet wenn der primäre Weg nicht verfügbar ist.

It needs to be noted that the usage of <alternativeSectionTT> cannot impact on the arrival time at the next stop. If it is necessary to describe such consequence of using a different path to the next ocpTT then another trainPart needs to be created with an alternative path.

Es ist zu beachten, dass die Verwendung von <alternativeSectionTT> keinen Einfluss auf die Ankunftszeit am nächsten Halt hat. Wenn es erforderlich ist, eine solche Folge der Nutzung einer anderen Trasse zum nächsten ocpTT zu beschreiben, muss ein weiterer trainPart mit einem alternativen Laufweg erstellt werden.
(introduced with version 2.5)

Attributes of alternativeSectionTT / Attribute von alternativeSectionTT

• section: This describes the used section.
• lineRef: This refers to the id attribute of the associated <line> element.
• trackInfo: This is a free description of the used section track.
• description: This is a free description.

💡 Please take into account our references to human-intepretable data fields. Bitte berücksichtigen Sie unsere Hinweise zu menschen-intepretierbaren Datenfeldern.

• remarks: This is a free attribute for further descriptions.
• percentageSupplement:
• distance:
• priority: This is to indicate the rank between the different elements, if more than one <alternativeSectionTT> exists. A higher value means that the alternative section is considered later.
• xs:anyAttribute: This provides an extension point for non-railML^® attributes in a foreign namespace. How to use it?

Syntactic Constraints / Syntaktische Beschränkungen

• section: xs:string
• lineRef: xs:IDREF
• trackInfo: xs:string
• description: xs:string
• remarks: xs:string
• percentageSupplement: xs:decimal
• distance: xs:decimal, 6 fraction digits, length value measured in meter
• priority: xs:integer
• xs:anyAttribute: This provides an extension point for non-railML^® attributes in a foreign namespace. How to use it?

Best practice & Examples / Empfohlene Anwendung & Beispiele

According to the example bellow the primary path from A to B is via track “tr8”+”tr10” and the secondary path is via track “tr7” in the figure.

<ocpsTT>
  <ocpTT sequence="1" ocpRef="A">
    <sectionTT>
      <trackRef ref="tr3">
      <trackRef ref="tr6">
      <trackRef ref="tr8">
      <trackRef ref="tr10">
      <trackRef ref="tr9">
    </sectionTT>
    <alternativeSectionsTT>
     <alternativeSectionTT priority="2">
      <trackRef ref="tr3">
      <trackRef ref="tr6">
      <trackRef ref="tr7">
      <trackRef ref="tr9">
     </alternativeSectionTT>
    </alternativeSectionsTT>
  </ocpTT>
</ocpsTT>

Notes / Anmerkungen

See also How to reference infrastructure.

Open issues / Offene Punkte/Pendenzen

Not yet described. / Noch nicht beschrieben.