Logistics Centers' Location Study Based On GA And BLP

With the development of economy in our country, logistics should be paid more attention to. When we develop the logistics, we are faced with a common problem how to determine the best location of logistics distribution center(DC). In logistics network, DC connects the supplier to the consumer and is the bridge between the two. It is highly important of the DC in the whole logistics system and the improvement of economic effect. The best location is the place that makes the effect of the process of collecting, transferring, distribution and transporting to the consumer through DC best. There are so many buildings and fixed equipment in DC. So if the DC has been built, it hardly can be removed. It will pay more cost to the wrong location of DC in the long term. So how to determine the location of the DC is the important problem in the DC planning and needs a systemic and all-around arrangement.The improved logistics centers location bi-level programming model based on competition is studied. In consideration of the need to solve the model a solution algorithm based on genetic algorithm is proposed. A genetic algorithm and a basic process to solute the bi-level programming model by GAOT toolbox of MATLAB are put forwards. The bi-level programming model has two different decision-maker——the DC location planner and the consumer. This model also describes the problem of the selection of the consumers after DC being built. The model in this paper is more practical.Seven tables, nineteen figures, fifty three references.