City Distribution System Optimization Research

With the Increasing development of urban economy, our country's urban distribution demand is more and more thrive. Due to our country's distribution system is in a stage of beginning, the research of city distribution system's planning, running, management, appraisal, still have a lot of work to do, from the study of items and look over relative references, the theory of urban distribution system optimization as a whole things and process are scarcity, which needs to urgent solve in the developing process of city distribution, therefore, this thesis sets about research on it, the main achievements of this thesis are as followed:1. From the point of systematic view, analyze the connotation, component, function, optimization goal of urban distribution system, from the point of urban distribution system's function and appraisal system, which introduces research framework of urban distribution system optimization;2. From the point of systematic view, study how the mechanism of city distribution is formed, and analyze the function of main elements including city distribution's marketing demand, government positive directing, logistics and supply chain theory, and modern technology support in forming process of a city's distribution system.3. From the point of systematic view, study about typical urban distribution network system planning optimization model under the diffident styles. This model process analyses the various affected elements of urban distribution network system optimization;and analyze the various network system's specialties of triple components of suppliers, distributors and customers;from the point of the lowest cost of system distribution, enact various presumption of standing for urban distribution specialties, and establish different composed triple distribution network system optimization model of different inventory model, service level, multi-kinds, multi-suppliers, multi-distribution centers, optimization model reveals quantitative relation of various parameters and distribution system cost, which embodies the integrated idea of triple distribution supply chain.4. Study specialties of various optimization model, aiming at the specialties of model multidimensional parameters, program composed explosion, hard solve, firstly proponed distributing group, distributing solution and greedy heuristic arithmetic with the specialties of urban distribution, and by the arithmetic example to prove the model, which is workable and efficient, model and arithmetic can obtain distribution center's layout optimization, including location choosing, scale, quantity, and customerbelonging relationship with the given hypothesis, at the same time, the result of distribution is shown that in order to reduce the distribution systems cost can mainly through reduce inventory and optimization of distribution routing .this model and arithmetic provide a workable theory and method for urban distribution network system optimization planning.5.For the urban distribution operation network's space time, use the introduce of the theory and technique of CRM/GIS operation system, provide the intelligent integration system framework for the urban distribution system, study the distribution center auto picking, and vehicle auto optimization model and planning GA arithmetic, set up urban distribution intelligent integration computer system ,through the experience to demonstrate the unavoidable necessity of integration ,the result is shown that intelligent distribution can quickly provide optimization result , reduce vehicle routing ,reduce distribution cost.6.This thesis based on optimization framework of urban distribution system, study and created an appraisal index system, comprehensive appraisal calculation method that represent urban distribution, from the whole part and process, provide a workable measure for the urban distribution that can fully describe and comprehensive.The applying of the above achievements will have good social and economic meaning to instruct and accelerate of the development of city distribution system.