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A new algorithm for the 2-period Balanced Traveling Salesman Problem in Euclidean graphs

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  • Tatiana Bassetto

    ()
    (Department of Applied Mathematics, University of Venice)

  • Francesco Mason

    ()
    (Department of Applied Mathematics, University of Venice)

Abstract

In a previous paper, we proposed two heuristic algorithms for the euclidean 2-period Balanced Travelling Salesman Problem (2B-TSP). In this problem, which arises from a similar one introduced by Butler et al., a certain number of customers must be visited at minimum total cost over a period of two days: some customers must be visited daily, and the others on alternate days (even or odd days). Moreover, the number of customers visited in every tour must be ‘balanced’, i.e. it must be the same or, alternatively, the difference between the maximum and the minimum number of visited customers must be less than a given threshold: this kind of constraint does not appear explicitly in the paper by Butler. In this paper a third algorithm is presented which overcomes some inadequacy of the algorithm A2 we proposed in the previous paper. The new algorithm’s performance is then analyzed, with respect particularly with the first proposed algorithm.

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Bibliographic Info

Paper provided by Department of Applied Mathematics, Università Ca' Foscari Venezia in its series Working Papers with number 173.

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Length: 16 pages
Date of creation: Nov 2008
Date of revision:
Handle: RePEc:vnm:wpaper:173

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Keywords: period routing problem; period travelling salesman problem; logistic; heuristic algorithms;

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