An iterative hub location and routing problem for postal delivery systems

Çetiner, Selim
In this study, we consider the Turkish postal delivery system and develop an effective solution approach for the combined hub location and routing problem where the location of hub nodes are determined, the nonhub regional postal offices are allocated to the hubs, and the optimal set of routes are determined for each hub. Since the realized post-routing distances between origin-destination pairs are different from those used in the hub-location model, we develop an algorithm that finds the route-compatible hub configuration and allocation paths. The algorithm is the one that iterates between the hub-location phase and a routing phase. Our strategy consists of updating the distances used in the first phase in order to produce a solution that contains the cognition of routes. Some special structures in the routed n etwork are also identified and used for improving the solution. Computational experience is reported.


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Citation Formats
S. Çetiner, “An iterative hub location and routing problem for postal delivery systems ,” M.S. - Master of Science, Middle East Technical University, 2003.