Article ID: | iaor20084295 |
Country: | South Korea |
Volume: | 33 |
Issue: | 4 |
Start Page Number: | 439 |
End Page Number: | 446 |
Publication Date: | Dec 2007 |
Journal: | Journal of the Korean Institute of Industrial Engineers |
Authors: | Lee Young Hoon, Choi Soon-Sik |
A new location model, where the demand varies by periods, and the facility at each period can be open or closed depending on the demand, is discussed in this paper. General facility location problem is extended with the assumption that demands per period vary. A mixed integer programming is suggested and the solution is found for various instances which are randomly generated. Instances included various cases with respect to the length of periods, moving distance of customer locations, and cost structure. The characteristics of optimal solutions are analyzed for various cases, and it is shown that demand changing location model can be applied in a practical field of supply chains.