Abstract
In this paper we consider the problem of a single depot distribution/collection system servicing a set of customers by means of a homogeneous fleet of vehicles. Each customer requires the simultaneous delivery and pick-up of products to be carried out by the same vehicle within a given time window. Products to be delivered are loaded at the depot and picked-up products are transported back to the depot. The objective is to minimize the overall distance traveled by the vehicles while servicing all the customers. To the best of our knowledge no exact algorithms have been introduced for this problem. We implement a Branch and Price approach based on a set covering formulation for the master problem. A relaxation of the elementary shortest path problem with time windows and capacity constraints is used as pricing problem. Branch and Bound is applied to obtain integer solutions. Known benchmark instances for the VRP with time windows have been properly modified to be used for the experimental analysis.
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© 2002 Springer-Verlag Berlin Heidelberg
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Angelelli, E., Mansini, R. (2002). The Vehicle Routing Problem with Time Windows and Simultaneous Pick-up and Delivery. In: Klose, A., Speranza, M.G., Van Wassenhove, L.N. (eds) Quantitative Approaches to Distribution Logistics and Supply Chain Management. Lecture Notes in Economics and Mathematical Systems, vol 519. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-56183-2_15
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DOI: https://doi.org/10.1007/978-3-642-56183-2_15
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-43690-4
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