Perishable inventory routing problem with consistent driver services and deliver fresh products under fuzzy uncertainty

In the recent decade, to demonstrate the importance of customer satisfaction can mention numbers of the service provider that attempt to differentiate themselves by satisfied their customers have 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 fuzzy uncertainty. The proposed model is formulated as mixed-integer programming. Two types of consistent driver services are regarded for different types 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 that finally demonstrates the validity of the proposed model.