ABSTRACT

In this chapter, we propose a fuzzy mathematical programming model for a supply chain that considers multiple depots, multiple vehicles, multiple products, multiple customers, and different time periods. In this work, not only demand and cost but also decision variables are considered to be fuzzy. We apply two ranking functions for solving the model. The aim of the fuzzy mathematical program is to select the appropriate depots among candidate depots, the allocation of orders to depots and vehicles, also the allocation of the returning vehicles to depots, to minimize the total costs.