<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <type name="highway" id="1">
    <class name="motorway" id="101" />
    <class name="motorway_link" id="102" />
    <class name="motorway_junction" id="103" />
    ...
    <class name="road" id="100" />
  </type>    
  <type name="junction" id="4">
    <class name="roundabout" id="401" />
  </type>  
</configuration> 
