Due to many damages that human activities have imposed on the environment, authorities, manufacturers, and industry owners have taken into account the development of supply chain more than ever. One of the most influential and essential human activities in the supply chain are transportation which green vehicles such as electric vehicles (EVs) are expected to generate higher economic and enviro...

In this paper we will deal with the sequencing and routing problem of order pickers in conventional multi-parallel-aisle warehouse systems. For this NP-hard Steiner Travelling Salesman Problem exact algorithms only exist for warehouses with at most three cross aisles. We propose a new approach were the problem of routing order pickers in multiple-block warehouses is translated into a classical ...

over the two last decades, distribution companies have been aware of the importance of paying attention to the all aspects of a distribution system simultaneously to be successful in the global market. these aspects are the economic, the environmental, the social and the safety aspects. in the vehicle routing problem (vrp) literature, the economic issue has often been used, while the environmen...

One of the important extensions of the classical resource allocation problem is integrated resource allocation and routing problem with time window (IRARPTW). IRARPTW problem focuses on the time window for the service at the demanding node with the consideration of travel time of vehicle for a varying demand-oriented multi echelon supply chain with the consideration of limitation on the number ...

In the stochastic and dynamic multi-stage vehicle routing problem, a set of vehicles collectively transports and services demands which require service at multiple spatially separated locations. Arrival times and service locations of individual demands are not known until the demand’s arrival, and vehicles are assumed to have infinite capacity and to travel with bounded velocity. The objective ...

The distribution service of commodities has tremendous impacts on cost-effective performance and level of customer satisfaction for third party logistics. One of main concerns is how to balance workloads among vehicles and ensure delivery time for each vehicle within the required duration. In this study, a multi-objective mixed zero-one integer programming model for the vehicle routing problem...

Purpose: the distribution routing plans of multi-depots vehicle scheduling problem will increase exponentially along with the adding of customers. So, it becomes an important studying trend to solve the vehicle scheduling problem with heuristic algorithm. On the basis of building the model of multi-depots vehicle scheduling problem, in order to improve the efficiency of the multiple depots vehi...

As unmanned aerial vehicle (UAV) technology improves, it will become increasingly efficient to use UAVs as part of package delivery networks. However, while the vehicle routing problem (VRP) is well studied, studying routing on a system of drones that can near-instantaneously transmit information about position, held packages, and destination while also able to near-instantaneously recieve new ...