Maintainer: Michael Zilske

In contrast to "ChangeLegMode", which changes all legs of a plan to a different mode, this module changes the modes of sub-tours separately.

For example, somebody might take the car to work, walk to lunch and back, and take the car back home.

 "chainBasedModes" means modes where a vehicle (car, bicycle, ...) is parked and in consequence needs to be picked up again.

	<module name="subtourModeChoice" >
		<param name="chainBasedModes" value="car, bike" />
		<param name="modes" value="car, bike, pt, walk" />
	</module>

 The module is called by inserting the following lines into the "strategy" module:

	<module name="strategy" >
		<param name="ModuleProbability_XXX" value="0.1" />
		<param name="Module_XXX" value="SubtourModeChoice" />
                ...
        </module>

For modes other than car, travel time and travel distance are computed according to some heuristics, which are configured in the router.