Research On Logistics Distribution Route Optimization Of H Expressway Service Area

In recent years,the logistics industry has developed rapidly,and the logistics related theories have been continuously improved and widely used in practical life.The theoretical knowledge of the vehicle path problem with time window involves many disciplines.It has attracted great attention from many disciplines and industries,and its application prospects are also very broad.The optimization of logistics and distribution routes with time Windows is closer to real life and work,and its research can bring more direct economic value and benefits to enterprises,which has a very high research value and practical significance.For enterprises,the purpose of route optimization is to reduce the total cost of distribution and pursue the maximization of economic benefits and the optimization of the realization process.By analyzing the distribution of distribution sites,we can choose distribution methods,distribution vehicles,distribution times,distribution routes,and service objects served by each vehicle to achieve the final purpose of distribution.This paper expounds the relevant theory of the road problem of logistics and distribution vehicles,introduces the definitions,constituent elements and algorithms of logistics and distribution routes,and briefly explains the advantages and disadvantages of various algorithms.Finally,it chooses to use genetic algorithm as the solution algorithm of this paper.The relative contents of genetic algorithm are briefly introduced.This paper analyzes the objective of distribution route optimization of company H and the description of route problem with time window.This paper is a study on the road planning of self-operated logistics distribution in expressway service area.Taking the vehicle path problem with time window as the entry point,the mathematic model of vehicle path problem with low cost under multi-objective premise is constructed,and the research and analysis on this problem are carried out from both the construction of model and the solution method.By describing the vehicle path problem(VRPTW)with time window,the paper determines that the soft time window is used to study the vehicle path problem,and the VRPTW model is constructed with the goal of the minimum total cost of distribution vehicles.The simple genetic algorithm is used to solve the case and analyze it.At the same time,according to the actual business requirements,the vehicle's driving distance and the maximum load of the vehicle are limited.According to the preconditions,the path is optimized by genetic algorithm,and the relevant case is analyzed and simulated by MATLAB program.Through the study of the optimization of the logistics and distribution routes in thehighway service area of H company,it can bring some improvements to the logistics and distribution work of H company: First,it can reduce the logistics costs for the company,according to the demand of the service area,the models and load of each vehicle,As well as the requirements of each service area for the distribution time window,the number of vehicles and the distance to drive are reasonable,and the distribution cost is eventually reduced.The second is to study the problem of vehicle paths with time Windows,which can improve the satisfaction of the service area.It is mainly reflected in whether the time for the transport vehicle to deliver the merchant food to the service area is in the time window,and if the time of delivery is in the time window,The satisfaction of the service area will be greatly improved.Even if it can not meet the service time of the service area,through the exploration of the distribution path of the time window,certain compensation measures can be given to the service area,and the satisfaction of the service area will be increased.Third,it can provide efficient and reasonable distribution route,the reasonable distribution route directly affects the cost of distribution.According to the demand of different service areas and other factors,this paper uses genetic algorithm to solve the model,so that the distribution route is greatly optimized.With the rapid growth of the social economy,the construction of the logistics distribution system in the service area plays an irreplaceable role in the development of the service area.The perfect logistics distribution system can not only promote the overall economic benefits of the service area,but also effectively promote the healthy and rapid development of the logistics industry.In the service area logistics distribution,the path optimization research is one of the key links to ensure the scientific development of the high-speed service area logistics distribution.It is of theoretical and practical significance to study the optimization of logistics and distribution routes in service areas to optimize the allocation of resources and improve the economic benefits of enterprises.