<additional xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/additional_file.xsd">
    <trainStop id="trainStop_0" lane="Edge4_1" startPos="9.00" endPos="15.00">

        <!-- non valid lane (missing) -->
        <access pos="1" length="10" friendlyPos="0"/>

        <!-- non valid Lane (dummy) -->
        <access lane="dummyLane" pos="1.1" length="10" friendlyPos="0"/>

        <!-- Valid Lane -->
        <access lane="Edge4_0" pos="1.2" length="10" friendlyPos="0"/>
    </trainStop>
</additional>
