Hazmat routing by compulsory check points: a new risk mitigation strategy

This paper introduces a new strategy for the mitigation of risk due to hazardous material transportation on a road network. We propose to assign to each vehicle a compulsory check point to be crossed along the orgin destination trip. The authority locates k check points on the network and assigns one check point to each vehicle. Drivers will travel along the minimum cost itinerary which complies with the obligation. As the authority is risk driven and drivers are cost driven, we have to solve a bilevel optimization problem. We present computational results on literature benchmarcks that show the effectiveness of the method.