A substantial distribution system is achievable to attain through the simultaneous design of location facility and route generation. This problem generally called a routing (LRP), where both strategic decision operational decisions are considered during initial phase. Nevertheless, for some real applications, consideration time restriction due several reasons should be included in model. Some e...

Mixed-integer linear programming is adopted to translate the routing of service operation vessels that support logistic aspects maintenance offshore floating wind farms into mathematical language. The models attempt help decision-makers by providing quantified tools screen out optimal planning for preventive maintenance. search base location, vessel’s per day, capacity, and vessel fleet composi...

In many distribution networks, it is vital that time windows in which deliveries are made are assigned to customers for the long term. However, at the moment of assigning time windows demand is not known. In this paper we introduce the time window assignment vehicle routing problem, the TWAVRP. In this problem time windows have to be assigned before demand is known. Next the realization of dema...

To reduce the logistic cost and carbon emission improve customer satisfaction, this study proposes a multiobjective green time-dependent location routing problem (MOGTDLRP) model in which objectives are to minimize distribution total cost, delivery time, fuel consumption. This will be solved by several hyperheuristic algorithms include high-level heuristics low-level heuristics. There three acc...

One of the most important problems for distribution companies is to find the best locations for depots and to find proper routes for transportation vehicles and to optimize supply network. This study intends to develop a model for the problem of location-routing in post offices. So, a new Bi-Objective Location-Routing Problem for Locating Town Post Office and Routing Parcels is defined. This pr...

As an important support of the e-commerce industry, express delivery industry is particularly in national development. Low loading rates caused by numerous types containers and cost increases low unloading efficiency are still remaining issues process goods packing. This study introduced pallet with telescopic height as middle to address these proposed a distribution scheme based on constraints...

This study extends a mathematical model that integrates the location, allocation, inventory replenishment and routing decisions simultaneously. To cope with inherent uncertainty of parameters, we implement a continuous-time Markov process and derive the performance measures of the system. Using the obtained results, the problem is formulated as a mixed integer nonlinear programing model (MINLP)...