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

    <person id="public" depart="4">
        <stop busStop="bs_2" duration="0"/>
        <personTrip busStop="bs_1" modes="public"/>
    </person>

</routes>
