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Matheuristics for optimizing the network in German wagonload traffic

: Sender, Julia; Siwczyk, Thomas; Mutzel, Petra; Clausen, Uwe


EURO journal on computational optimization 5 (2017), No.3, pp.367-392
ISSN: 2192-4406 (Print)
ISSN: 2192-4414 (Online)
Journal Article
Fraunhofer IML ()
hub location problem; network design; IP; matheuristic; local search; evolutionary algorithm

In this paper, we consider a capacitated multiple allocation hub location problem derived from a practical application in network design of German wagonload traffic. Due to the difficulty to solve even small data sets to optimality, we present two matheuristics: a local search matheuristic and an extension of an evolutionary algorithm matheuristic. Computational results are presented to demonstrate and compare the efficiency of both approaches for real-sized instances.