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Revista Ingenierías Universidad de Medellín

versão impressa ISSN 1692-3324

Resumo

PUENAYAN, Duván Eduardo; LONDONO, Julio César; ESCOBAR, John Willmer  e  LINFATI, Rodrigo. An algorithm based on a granular tabu search for the solution of a vehicle routing problem by considering heterogeneous fleet. Rev. ing. univ. Medellín [online]. 2014, vol.13, n.25, pp.81-98. ISSN 1692-3324.

This paper considers the vehicle routing problem with heterogeneous fleet (VRPH), which tries to determine the routes to be constructed for satisfying the demand of the customers by considering a fleet of vehicles with different capacities and costs not homogeneous. The main objective is to minimize the distance traversed by the different vehicles. This paper proposes a metaheuristic algorithm based on a granular tabu search for the solution of the problem. The algorithm allows infeasible solutions by penalizing them by a dynamic factor which is adjusted during the search. Computational experiments on real instances for a Colombian company show that the proposed algorithm is able to obtain, within short computing times, better solutions for those obtained by the current traditional method for planning the routes.

Palavras-chave : vehicle routing problem; heterogeneous fleet; granular tabu search.

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