This article addresses the well-known Capacitated Vehicle Routing Problem (CVRP), in the special case where the demand of a customer consists of a certain number of two-dimensional weighted items. The problem calls for the minimization of the cost of transportation needed for the delivery of the goods demanded by the customers, and carried out by a fleet of vehicles based at a central depot. In order to accommodate all items on the vehicles, a feasibility check of the two-dimensional packing (2L) must be executed on each vehicle. The overall problem, denoted as 2L-CVRP, is NP-hard and particularly difficult to solve in practice. We propose a Tabu Search algorithm, in which the loading component of the problem is solved through heuristics, lower bounds, and a truncated branch-and-bound procedure. The effectiveness of the algorithm is demonstrated through extensivecomputational experiments.
|Data di pubblicazione:||2008|
|Titolo:||A tabu search heuristic for the vehicle routing problem with two-dimensional loading constraints|
|Autori:||M., Gendreau; Iori, Manuel; G., Laporte; S., Martello|
|Digital Object Identifier (DOI):||10.1002/net.20192|
|Appare nelle tipologie:||Articolo su rivista|
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