## An IP Approach to Toll Enforcement Optimization on German Motorways

• This paper proposes the first model for toll enforcement optimization on German motorways. The enforcement is done by mobile control teams and our goal is to produce a schedule achieving network-wide control, proportional to spatial and time-dependent traffic distributions. Our model consists of two parts. The first plans control tours using a vehicle routing approach with profits and some side constraints. The second plans feasible rosters for the control teams. Both problems can be modeled as Multi-Commodity Flow Problems. Adding additional coupling constraints produces a large-scale integrated integer programming formulation. We show that this model can be solved to optimality for real world instances associated with a control area in East Germany.

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Author: Ralf Borndörfer, Guillaume Sagnol, Elmar Swarat In Proceedings Operations Research Proceedings 2011 317 322 Operations Research Proceedings 2012 urn:nbn:de:0297-zib-14299 http://dx.doi.org/10.1007/978-3-642-29210-1_51

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