Multi-echelon distribution systems are quite common in supply-chain and logistic management. They are used by public administrations in their transportation and traffic planning strategies as well as by companies to model their distribution systems. In the literature, most studies address issues related to the movement of flows throughout the system from the origins to their final destinations....

The Capacitated Vehicle Routing problem (CVRP) is a combinatorial optimization and nonlinear problem seeking to service a number of customers with a fleet of vehicles. CVRP isan important problem in the fields of transportation, distribution and logistics . Usually, the goal is delivering goods located at a central depot to customers who have placed orders. This transportation optimization prob...

In this contribution we optimize the transportation of containers in the hinterland of a local area with one terminal and one depot for empty containers and trucks. There are several customers who want to receive goods by inbound containers and several customers who want to ship goods by outbound containers. Additionally, there are empty inbound containers and empty outbound containers. We pres...

When a disaster strikes an area, often international assistance is requested to help responding and recovering from the disaster. The response characterized by dispatch of relief items affected regions via depots Humanitarian Logistics Service Providers (HLSPs). One challenges HLSP faces how organize its network depots. Important questions are many should be opened what their locations be? We d...

This paper addresses a multiple depot vehicle scheduling problem (MDVSP) arising in public transportation. The general problem consists in assigning vehicles to trips while minimising the number of scheduled vehicles and the operational costs. The MDVSP considered here takes into account heterogeneous types of vehicles with complex relations among them. This special feature matches well situati...

In this paper, based on the analysis of the time urgency in medicine relief demand and kinds of complexity in the early period after earthquake disasters, the problem about vehicle scheduling in the medicine dispatching process is studied. A mathematical model of vehicle scheduling in the medicine dispatching process is built, which objective function is to minimize the total transportation tim...

This contribution gives an introduction to an integrated vehicle routing and resource allocation problem. We refer to it as the Swap Trailer Problem and formulate the mathematical model. After the analysis of dynamic decision problems and the development of a framework for this problem, we highlight the dynamic aspect of the problem. Two different solution strategies are supposed. Special prope...

The purpose of this paper is to present a coalition based multi-agent model for the Vehicle Routing Problem with Time Windows, which is one of the most important ones in distribution and transportation. The VRPTW objective is to design least cost routes from one depot to a set of customers. A fleet of homogeneous vehicles performs the routes to serve all the customers, while respecting capacity...