A Guided Tabu Search for the Vehicle Routing Problem with two-dimensional loading constraints

Emmanouil E. Zachariadis, Christos D. Tarantilis and Christos T. Kiranoudis

European Journal of Operational Research, 2009, vol. 195, issue 3, 729-743

Abstract: We present a metaheuristic methodology for the Capacitated Vehicle Routing Problem with two-dimensional loading constraints (2L-CVRP). 2L-CVRP is a generalisation of the Capacitated Vehicle Routing Problem, in which customer demand is formed by a set of two-dimensional, rectangular, weighted items. The purpose of this problem is to produce the minimum cost routes, starting and terminating at a central depot, to satisfy the customer demand. Furthermore, the transported items must be feasibly packed into the loading surfaces of the vehicles. We propose a metaheuristic algorithm which incorporates the rationale of Tabu Search and Guided Local Search. The loading aspects of the problem are tackled using a collection of packing heuristics. To accelerate the search process, we reduce the neighbourhoods explored, and employ a memory structure to record the loading feasibility information. Extensive experiments were conducted to calibrate the algorithmic parameters. The effectiveness of the proposed metaheuristic algorithm was tested on benchmark instances and led to several new best solutions.

Keywords: Vehicle; routing; Loading; constraints; Tabu; Search; Guided; Local; Search (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (39)

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