Mohammad Hasan Esmaili - Department of Industrial Engineering, Faculty of Engineering, Shahed University, Tehran, Iran
Seyed Meysam Mousavi - Associate Professor, Department of Industrial Engineering, Faculty of Engineering, Shahed University, Tehran, Iran

To demonstrate the importance of customer satisfaction can mention numbers of the service providers that attempt to differentiate themselves by satisfied their customers, witnessed high growth. In this paper, some factors that increase retailers and customers’ satisfaction, such as driver consistent services and delivering fresh products, are considered in a perishable inventory routing problem (PIRP) under possibility and necessity class of fuzzy uncertainty measures. In a typical inventory routing problem (IRP), a distribution center delivers products to a set of customers through a limited time horizon, and simultaneously makes a decision about inventory and routing to minimize the total cost. The proposed model is formulated as mixed-integer programming. Two types of consistent driver services are regarded for different kinds of customers, including particular and typical customers. To investigate the validity of the model, the problem is solved for two values of possibility and necessity measures.  

Perishable products- Driver consistent- Freshness- Inventory routing problem- Possibility and Necessity measures.