rail:path 

the path element indicates a train run between two neighbouring OCPs

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

Element Information

Model

rail:ocpRef{2,2}
Children: rail:ocpRef

Source 

<xs:element name="path" type="rail:tPath" minOccurs="0">
  <xs:annotation>
    <xs:documentation>the path element indicates a train run between two neighbouring OCPs</xs:documentation>
    <xs:documentation source="http://wiki.railml.org/index.php?title=IS:path"/>
  </xs:annotation>
</xs:element>

Sample