Research On Vehicle Transportation Route In The Integration Of Common Distribution And Reverse Logistics In City

With the development of economy, the standard of people's living enhances continually, while a series of problems become more serious, such as traffic jam, noise pollution, exhaust gas pollution of vehicle, entironment pollution caused by waste materiel, exhausted resource and so on. Therefore, reverse logistics come into being and develope promptly. The purpose of reverse logistics is resource recycling and reasonable handling of waste material. There are still many problems in the development of reverse logistics, such as small scale, disordered organization, poor operation benefit and so on. To solve these problems better, the author consideres the transportation in the integration of common distribution and reverse logistics under the general condition of common distribution. This integrated transportation has positive realistic meaning. It can raise the rate of actual loading, reduce the amount of vehicle used in logistics, consequently reduce the harm that logistics works on the city environment, debase the logistics cost consumedly, enhance the logistics effectiveness, promote the development of reverse logistics.This thesis studies the transportation in the integration of common distribution and reverse logistics, the emphasis is vehicle routing problem(VRP). First, expounds the backdrop, purpose, meaning, ways and means of research, and actuality of research home and abroad, then analyses the probability and development mode of the transportation in the integratipon of common distribution and reverse logistics. Mainly analyses the classification and characteristic of common distribution and reverse logistics that suit to be integrated, indicates the changes of transportation costs and participator's benefits before and after the integrating, studies the rule of cost sharing. Affter installing the logistic nodes for the transportation, the thesis mainly studies the VRP. According to the traditional VRP and others'research about VRP, establishes the VRP mathematical model. Affter comparing the algorithm of each kind of VRP, the thesis establishes the insertion criterion and heuristic construction procedure for the VRP mathematical model. Finally, verify the mathematical model and the proposed algorithm of the transportation in the integration of common distribution and reverse logistics by using simulated case.The study of this thesis is an attempt in the integration of common distribution and reverse logistics, which hope to promote the development of modern logistics and improve the traffic environment in city.