Abstract
There has been a number of facility location problems dealing with the introduction of the equity issue in the travel distances distribution. In this paper we analyze a new aspect of equity concerning the distribution of the arrival times of customers. Given a depot and a set of demand points generating flow which also represent potential locations, we consider a discrete two-stage location problem whose aim is to locate a given number of facilities and to allocate the demand points to a facility. We assume as objective the maximization of the minimum difference between two consecutive arrival times of flows to the depot through the patronized facility. This particular equity measure is introduced in order to reduce risks of congestion in the dynamic of flow arrivals at the common destination. The problem is described through two Integer Programming formulations. Computational results for solution methods based on both formulations are then shown and analyzed.
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Acknowledgments
Alfredo Marín acknowledges that research reported here was partially supported by Ministerio de Economía y Competitividad, Project MTM2012-36163-C06-04, and Fundación Séneca Project 08716/PI/08.
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Barbati, M., Bruno, G. & Marín, A. Balancing the arrival times of users in a two-stage location problem. Ann Oper Res 246, 273–288 (2016). https://doi.org/10.1007/s10479-015-1886-5
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DOI: https://doi.org/10.1007/s10479-015-1886-5