Take a look at the VRP example too: it's basically the TSP example, but with multiple vehicles. 1) It depends, but I would add a hard constraint for this. Once 5.5.0.Final is out, you might use move Filtering instead, so it doesn't even evaluate those solutions (but that also blocks it from tunneling through an infeasible solution to a new, better feasible solution, so that filtering might be a bad thing). 2) The bigger problem is that in this design you'll be assigning an order of StopTimes, but your goal is not to assign the StopTimes, but to assign a trainride (from start A to destination B) to a route (through StopTimes). The number of StopTimes depends on the route taken. This greatly influences the design. There isn't a good example out of the box in Planner for this, but Lukas has such a case working well for RAS2012 with Planner, which I am hoping he'll open up after 15th August. Note: the answer on 2) makes the answer on 1) obsolete. -- View this message in context: http://drools.46999.n3.nabble.com/Planner-Train-routing-problem-tp4018955... Sent from the Drools: User forum mailing list archive at Nabble.com.