Scheduling: Theory, Algorithms, and Systems
Scheduling: Theory, Algorithms, and Systems
Optimizing the use of public transit system during no-notice evacuation of urban areas
Computers and Industrial Engineering
Planning for a bus-based evacuation
OR Spectrum
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The bus evacuation problem (BEP) is a vehicle routing problem that arises in emergency planning. It models the evacuation of a region from a set of collection points to a set of capacitated shelters with the help of buses, minimizing the time needed to bring the last person out of the endangered region. In this work, we describe multiple approaches for finding both lower and upper bounds for the BEP, and apply them in a branch and bound framework. Several node pruning techniques and branching rules are discussed. In computational experiments, we show that solution times of our approach are significantly improved compared to a commercial integer programming solver.