rail:braking 

the braking element contains parameters describing the required train braking configuration

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

Element Information

Model

Attributes

QName Type Fixed Default Use Inheritable Annotation
airBrakeApplicationPosition rail:tAirBrakeApplicationPosition optional 
base brake switch, one of G, P or R
brakeType rail:tBrakeType required 
vacuum or compressed air brake, hand brake, parking brake, cable brake
minimumBrakePercentage rail:tBrakePercentage optional 
minimum brake percentage of the train

Source 

<xs:element name="braking" type="rail:tBraking" minOccurs="0">
  <xs:annotation>
    <xs:documentation>the braking element contains parameters describing the required train braking configuration</xs:documentation>
    <xs:documentation source="http://wiki.railml.org/index.php?title=IS:braking"/>
  </xs:annotation>
</xs:element>

Sample