The air transportation hub-and-spoke design problem: comparison between a continuous and a discrete solution method

Pesquisa Operacional

Guina Sotomayor Alzamora²  Fernanda M.p. Raupp²  Nelio D. Pizzolato²  Adilson E. Xavier¹ 

[1] ,Pontifical Catholic University of Rio de Janeiro Industrial Engineering Department Gávea RJ ,Brazil

关键词: hub location problem;    p-median;    hyperbolic smoothing technique;   

DOI  :  10.1590/S0101-74382013005000006

来源: SciELO

【 摘 要 】

The hub-and-spoke network design problem, also known as the hub location problem, aims to find the concentration points in a given network flow so that the sum of the distances of the linkages is minimized. In this work, we compare discrete solutions of this problem, given by the branch-and-cut method applied to the p-hub median model, with continuous solutions, given by the hyperbolic smoothing technique applied to a min-sum-min model. Computational experiments for particular instances of the Brazilian air transportation system, with the number of hubs varying from 2 to 8, are conducted with the support of a discretization heuristic and the Voronoi diagram.

【 授权许可】

CC BY   
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