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A fuzzy programming approach for dynamic virtual hub location problem

Taghipourian, F ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1016/j.apm.2011.10.016
  3. Publisher: 2012
  4. Abstract:
  5. Hub location problem has been used in transportation network to exploit economies of scale. For example, a controversial issue in the planning of air transportation networks is inclement weather or emergency conditions. In this situation, hub facilities would not be able to provide a good service to their spoke nodes temporarily. Thus, some other kinds of predetermined underutilized facilities in the network are used as virtual hubs to host some or all connections of original hubs to recover the incurred incapacitation and increase network flexibility and demand flow. In such an unexpected situation, it is not unreasonable to expect that some information be imprecise or vague. To deal with this issue, fuzzy concept is used to pose a more realistic problem. Here, we present a fuzzy integer liner programming approach to propose a dynamic virtual hub location problem with the aim of minimizing transportation cost in the network. We examine the effectiveness of our model using the well-known CAB data set
  6. Keywords:
  7. Dynamic virtual hub location ; Fuzzy integer linear programming ; Air transportation networks ; Data sets ; Demand Flow ; Economies of scale ; Emergency conditions ; Fuzzy concept ; Fuzzy integers ; Fuzzy programming ; Good services ; Hub and spoke system ; Hub location ; Hub location problems ; Network flexibility ; Transportation cost ; Transportation network ; Integer programming ; Transportation
  8. Source: Applied Mathematical Modelling ; Volume 36, Issue 7 , 2012 , Pages 3257-3270 ; 0307904X (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0307904X11006706