A column generation approach for location-routing problems with pickup and delivery

Thomas Capelle, Cristián E. Cortés, Michel Gendreau, Pablo A. Rey and Louis-Martin Rousseau

European Journal of Operational Research, 2019, vol. 272, issue 1, 121-131

Abstract: In this paper we formulate an integer programming model for the Location and Routing Problem with Pickup and Delivery. We propose a column generation scheme and implement, for the subproblem, a label-setting algorithm for the shortest path with pickup and delivery and time windows problem. We also propose a set of heuristics to speed up this process. To validate the model, we implement the column generation scheme and test it on different instances developed in this paper. We also provide an analysis of how the costs of opening depots and the fixed cost of routes affect the optimal solution.

Keywords: Routing; Location; Pickup and delivery; Branch and price (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ejores:v:272:y:2019:i:1:p:121-131

DOI: 10.1016/j.ejor.2018.05.055

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