rail:to 

end point where the 'state' takes place, e.g. kilometric position

http://wiki.railml.org/index.php?title=IS:to

Element Information

Model

rail:geoCoord{0,1}
Children: rail:geoCoord

Attributes

QName Type Fixed Default Use Inheritable Annotation
absPos rail:tLengthM optional
absPosOffset rail:tLengthM optional 
DEPRECATED, not needed, not used
ocpRef rail:tGenericRef optional 
location described by the reference to a well-known 'operation or control point' defined in the same railML file
pos rail:tLengthM required

Source 

<xs:element name="to" type="rail:tLocation" minOccurs="0">
  <xs:annotation>
    <xs:documentation>end point where the 'state' takes place, e.g. kilometric position</xs:documentation>
    <xs:documentation source="http://wiki.railml.org/index.php?title=IS:to"/>
  </xs:annotation>
</xs:element>

Sample