A kaboli - Department of Industrial Engineering, Iran University of Science and Technology,
m.b Aryanezhad - Department of Industrial Engineering, Iran University of Science and Technology,
k Shahanaghi - Department of Industrial Engineering, Iran University of Science and Technology
r Tavakkoli-Moghaddam - Department of Industrial Engineering, Faculty of Engineering, University of Tehran

This paper presents a new mathematical model for a location-allocation problem, selects the optimal locations, and allocates optimal demands that fit best for both investors and managers. To solve this model, a hybrid method based on fuzzy analytical hierarchy process (AHP) and goal programming is proposed. A numerical example is solved to illustrate the application of our proposed method. Finally, the associated results are compared with the results reported in the literature and the informational efficacy of the proposed model is also discussed.

Location-allocation problem, Optimal method, Fuzzy AHP, Goal programming