Introduction
🗒️

This article uses the unit label meter.
As the reference for this wiki is British English, the correct label is metre.
Wherever the label meter occurs, it is meant equivalently to metre.



Documentation
Syntax

Documentation

with this element the curvature of a track can be described.

Subschema

infrastructure

Parents^{*}

horizontalCurves

Children

areaLocation (0..*), beginsInGeometryPoint (0..1), endsInGeometryPoint (0..1), gmlLocation (0..*), isValid (0..*), linearLocation (0..*), name (0..*), networkLocation (0..*), spotLocation (0..*)

Attributes:
 azimuth: constant azimuth (direction angle) of the horizontal curve in degrees;
Direction "north" has an azimuth of 0 degrees, "east" 90, "south" 180 and "west" 270 degrees. (optional; xs:decimal ),
 curveType: type of the horizontal curve, e.g. arc or clothoide or straight (obligatory;
xs:string ; patterns: other:w{2,})
 Possible values:
 arc: An arc has a constant radius that is not infinite and not zero.
 clothoide: a curve whose curvature changes linearly with its curve length [Wikipedia]
 cosinusoide: Curve representing the trigonometric function cosine
 cubicParabola: curve based on a cubic formula (y = ax^3 + bx^3 + c)
 curveBloss: Sshaped transition curve
 curveWiener: A patented type of curve that combines the 2d aspects with the 3d parts (elevation)
 doucine: in France a short nonlinear transition applied at the ends, smoothing the curvature variation [Bloss transition  a short design guide Constantin Ciobanu]
 sinusoide: a curve description based on the sinus function
 straight: A straight curve has a constant radius that is infinite.,
 deltaAzimuth: change of azimuth of the horizontal curve in degrees;
use this attribute if the azimuth of the horizontal curve is not constant, but changing; delta azimuth shall be calculated as difference of azimuth value at the end and the azimuth value at the beginning of the horizontal curve. (optional; xs:decimal ),
 length: length of the horizontal curve in metres;
for arcs and transition curves (e.g. clothoides) this attribute defines the arc length (optional; xs:decimal ),
 radius: radius of the horizontal curve in meters;
use value "0" (zero) to describe straight curves with infinite radius; use negative values to describe a horizontal curve going to the left (as seen from begin of curve) and use positive values to describe a horizontal curve going to the right (as seen from begin of curve) (optional; xs:decimal ),
 id: the identifier of the object; this can be either of type xs:ID or UUID (obligatory;
xs:ID ); compare: Dev:Identities

^{*}Notice: Elements may have different parent elements. As a consequence they may be used in different contexts. Please, consider this as well as a user of this wiki as when developing this documentation further. Aspects that are only relevant with respect to one of several parents should be explained exclusively in the documentation of the respective parent element.


Documentation

This element is not documented in the schema!

Subschema

infrastructure

Parents^{*}

horizontalCurves

Children

areaLocation (0..*), beginsInGeometryPoint (0..1), endsInGeometryPoint (0..1), gmlLocations (0..*), isValid (0..*), linearLocation (0..*), name (0..*), networkLocation (0..*), spotLocation (0..*)

Attributes:
 azimuth: constant azimuth (direction angle) of the horizontal curve in degrees;
Direction "north" has an azimuth of 0 degrees, "east" 90, "south" 180 and "west" 270 degrees. (optional; xs:decimal ),
 curveType: type of the horizontal curve, e.g. arc or clothoide or straight (obligatory;
xs:string ; patterns: other:w{2,})
 Possible values:
 arc: An arc has a constant radius that is not infinite and not zero.
 clothoide
 cosinusoide
 cubicParabola
 curveBloss
 curveWiener
 doucine
 sinusoide
 straight: A straight curve has a constant radius that is infinite.,
 deltaAzimuth: change of azimuth of the horizontal curve in degrees;
use this attribute if the azimuth of the horizontal curve is not constant, but changing; delta azimuth shall be calculated as difference of azimuth value at the end and the azimuth value at the beginning of the horizontal curve. (optional; xs:decimal ),
 length: length of the horizontal curve in metres;
for arcs and transition curves (e.g. clothoides) this attribute defines the arc length (optional; xs:decimal ),
 radius: radius of the horizontal curve in meters;
use value "0" (zero) to describe straight curves with infinite radius; use negative values to describe a horizontal curve going to the left (as seen from begin of curve) and use positive values to describe a horizontal curve going to the right (as seen from begin of curve) (optional; xs:decimal ),
 id: the identifier of the object; this can be either of type xs:ID or UUID (obligatory;
xs:string ; patterns: (urn:uuid:)?[09afAF]{8}[09afAF]{4}[09afAF]{4}[09afAF]{4}[09afAF]{12}{[09afAF]{8}[09afAF]{4}[09afAF]{4}[09afAF]{4}[09afAF]{12}}); compare: Dev:Identities

^{*}Notice: Elements may have different parent elements. As a consequence they may be used in different contexts. Please, consider this as well as a user of this wiki as when developing this documentation further. Aspects that are only relevant with respect to one of several parents should be explained exclusively in the documentation of the respective parent element.


Documentation

This element is not documented in the schema!

Subschema

infrastructure

Parents^{*}

horizontalCurves

Children

any (0..*), areaLocation (0..*), beginsInGeometryPoint (0..1), endsInGeometryPoint (0..1), gmlLocations (0..*), isValid (0..*), linearLocation (0..*), name (0..*), networkLocation (0..*), spotLocation (0..*)

Attributes:
 curveType: type of the horizontal curve, e.g. arc or clothoide or straight (obligatory;
xs:string ; patterns: other:w{2,})
 Possible values:
 straight: A straight curve has a constant radius that is infinite.
 sinusoide
 doucine
 curveWiener
 curveBloss
 cubicParabola
 cosinusoide
 clothoide
 arc: An arc has a constant radius that is not infinite and not zero.,
 azimuth: constant azimuth (direction angle) of the horizontal curve in degrees;
Direction "north" has an azimuth of 0 degrees, "east" 90, "south" 180 and "west" 270 degrees. (optional; xs:decimal ),
 deltaAzimuth: change of azimuth of the horizontal curve in degrees;
use this attribute if the azimuth of the horizontal curve is not constant, but changing;
delta azimuth shall be calculated as difference of azimuth value at the end and the azimuth value at the beginning of the horizontal curve. (optional; xs:decimal ),
 radius: radius of the horizontal curve in meters;
use value "0" (zero) to describe straight curves with infinite radius;
use negative values to describe a horizontal curve going to the left (as seen from begin of curve) and use positive values to describe a horizontal curve going to the right (as seen from begin of curve) (optional; xs:decimal ),
 length: length of the horizontal curve in metres;
for arcs and transition curves (e.g. clothoides) this attribute defines the arc length (optional; xs:decimal ),
 id: the identifier of the object; this can be either of type xs:ID or UUID (obligatory;
xs:ID ; patterns: (urn:uuid:)?[09afAF]{8}[09afAF]{4}[09afAF]{4}[09afAF]{4}[09afAF]{12}{[09afAF]{8}[09afAF]{4}[09afAF]{4}[09afAF]{4}[09afAF]{12}}); compare: Dev:Identities

^{*}Notice: Elements may have different parent elements. As a consequence they may be used in different contexts. Please, consider this as well as a user of this wiki as when developing this documentation further. Aspects that are only relevant with respect to one of several parents should be explained exclusively in the documentation of the respective parent element.

Changes 3.1→3.2
There exists an overview of all changes between railML^{®} 3.1 and railML^{®} 3.2 on page Dev:Changes/3.2.
The children have been changed.
The attributes have been changed.
Changes 3.2→3.3
There exists an overview of all changes between railML^{®} 3.2 and railML^{®} 3.3 on page Dev:Changes/3.3.
The element documentation has been changed.
The children have been changed.
The attributes have been changed.
Semantics
Best Practice / Examples
Additional Information
Notes
Open Issues