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Probabilistic maximal covering location-allocation models with constrained waiting time or queue length for congested systems
Marianov, Vladimir; Serra, Daniel
Universitat Pompeu Fabra. Departament d'Economia i Empresa
When dealing with the design of service networks, such as healthand EMS services, banking or distributed ticket selling services, thelocation of service centers has a strong influence on the congestion ateach of them, and consequently, on the quality of service. In this paper,several models are presented to consider service congestion. The firstmodel addresses the issue of the location of the least number of single--servercenters such that all the population is served within a standard distance,and nobody stands in line for a time longer than a given time--limit, or withmore than a predetermined number of other clients. We then formulateseveral maximal coverage models, with one or more servers per service center.A new heuristic is developed to solve the models and tested in a 30--nodesnetwork.
15-09-2005
Statistics, Econometrics and Quantitative Methods
discrete facility location
queuing
emergency services location
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