کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
481042 | 1446027 | 2014 | 16 صفحه PDF | دانلود رایگان |
• We introduce an extension of the many-to-many location-routing problem.
• We provide a test set and perform an extensive computational study.
• A mixed-integer linear model is developed.
• A fix-and-optimize heuristic and a genetic algorithm are developed.
In this paper, we consider a variant of the many-to-many location-routing problem, where hub facilities have to be located and customers with either pickup or delivery demands have to be combined in vehicle routes. In addition, several commodities and inter-hub transport processes are taken into account. A practical application of the problem can be found in the timber-trade industry, where companies provide their services using hub-and-spoke networks. We present a mixed-integer linear model for the problem and use CPLEX 12.4 to solve small-scale instances. Furthermore, a multi-start procedure based on a fix-and-optimize scheme and a genetic algorithm are introduced that efficiently construct promising solutions for medium- and large-scale instances. A computational performance analysis shows that the presented methods are suitable for practical application.
Journal: European Journal of Operational Research - Volume 236, Issue 3, 1 August 2014, Pages 863–878