IS:trackCircuitBorder

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trackCircuitBorder
 


Scheme description / Schemenbeschreibung / Description du schéma

Position of trackCircuitBorder in the XML-Tree / Position von trackCircuitBorder im XML-Baum / position de trackCircuitBorder dans l’aborescence XML

Multiplicity / Anzahl / Multiplicité

[1..1]

Semantics / Bedeutung / Sémantique

A <trackCircuitBorder> allows for defining insulated rail joints.

Attributes of trackCircuitBorder / Attribute von trackCircuitBorder / Attributs de trackCircuitBorder

  • id: This is the unique identifier which is used to refer to the current element. It is used for XML file internal unambiguous references. How to handle it?
  • code (introduced with version 2.1): This is a short string for typical, specific abbreviations, used in different systems with the same understanding.
  • name: This is a short name for the current item.
  • description: This is a more detailed description as addition to the short name. It shall allow a short overview or hints to the contents of this data set.
Birne.png Please be aware that this attribute is only intended to forward simple remarks/explanations from one end-user to another end-user. It is not to be used to contain computer-processable data, nor shall it be parsed by programmes in any way. In case of semantical overlaps or discrepancies to machine processable file contents, any machine processable contents have priority over possible human interpretable contents. However, the attribute may be used to transmit complementary details to machine processable parameters.

Bitte, berücksichtigen Sie, dass dieses Attribut nur für einfache Kommentare/Erklärungen von Endbenutzer zu Endbenutzer bestimmt ist. Es ist nicht für maschineninterpretierbare Daten gedacht und wird nicht geparst werden. Im Falle semantischer Überschneidungen oder Widersprüche zu maschinenlesbaren Inhalten wird diesen der Vorzug gegenüber durch Menschen lesbaren gegeben. Allerdings können durch Menschen lesbare Felder für Ergänzungen zu maschinenlesbaren verwendet werden.

  • xml:lang (introduced with version 2.1): This is a unique identifier of language. It uses basically the language standard IETF BCP 47 (external link) which may be different to ISO 639-1 (external link) or ISO 639-2 (external link). For mapping hints see relation to other standards (external link).
    This is used for defining name and description.
  • pos: This is the position on a track defined as distance from its start (trackBegin) regardless the "absolute mileage" in absPos.
    Das ist die Position des Elements auf einem Track i.S. der realen Entfernung zum trackBegin. Sie ist damit unabhängig von der mit absPos modellierten Strecken-Kilometrierung.
Note.png For an explanation of the differences between pos and abspos see <mileageChange>
  • absPos: This is the position on a track as absolute mileage/chainage.
    Das ist die Position des Elements im Referenzsystem der Strecken-Kilometrierung.
Note.png For an explanation of the differences between pos and abspos see <mileageChange>
  • absPosOffset (deprecated with version 2.1): The semantics of this attribute aren't very clear. It seems to be redundant to the definitions with mileageChanges in "overlapping regions".
  • dir: This defines the validity of <trackCircuitBorder> along the track. Possible values are:
  • up: This denotes the direction from the <trackBegin> to the <trackEnd> (increasing relative position values).
  • down: This goes opposite to up (decreasing relative position values).
  • unknown: <trackCircuitBorder> is restricted to a certain direction, but this direction is not known.
  • ocpStationRef: This refers to the id attribute of the associated <ocp> element.
    (introduced with version 2.1)
  • controllerRef: This refers to the id attribute of the associated <controller> element.
    (introduced with version 2.1)

Syntactic Constraints / Syntaktische Beschränkungen / Contraintes syntactiques

  • id: xs:ID, required
    a string, starting with a letter (a..zA..Z) or an underscore (_),
    followed by a non-colonized and non-spaced string consisting of letters, digits, points (.), dashes (-) or underscores (_)
  • pos: tLengthM (xs:decimal, 6 fraction digits, length value measured in meter); required; must be greater than or equal to zero, less than or equal to the track's length
  • absPos: xs:decimal, 6 fraction digits, length value measured in meter; optional
  • absPosOffset: xs:decimal, 6 fraction digits, length value measured in meter; optional
  • dir: xs:string, generic type for more constrained direction statements: enumeration up, down, unknown; derived from tLaxDirection; optional

Best practice & Examples / Empfohlene Anwendung & Beispiele / Bonnes pratiques & exemples

Not yet described. / Noch nicht beschrieben. / Pas encore décrit.

Notes / Anmerkungen / Notes

General information on positioning

Positive pos values describe the distance from the track's begin. The track length is derived from the pos value in <trackEnd>.

The absolute mileage refered to by absPos is usually found on technical drawings of the track layout or on mileage posts next to the track.

Open issues / Offene Punkte/Pedenzen / Questions ouvertes

Not yet described. / Noch nicht beschrieben. / Pas encore décrit.