<edges xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/edges_file.xsd">

   <edge id="01" from="0" to="1" speed="10" />
   <edge id="12" from="1" to="2" speed="20" />
   <edge id="23" from="2" to="3">
       <lane index="0" speed="5"/>
   </edge>

</edges>
