input_trips.trips.xml

<routes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/routes_file.xsd">
    <trip id="0" depart="0" from="beg" to="rend">
        <stop lane="left_0" duration="10" posLat="-2" actType="custom">
            <param key="a" value="1"/>
        </stop>
        <stop lane="end_0" duration="10" posLat="-2" actType="custom2">
            <param key="b" value="2"/>
        </stop>
        <param key="c" value="3"/>
    </trip>
</routes>