The Optimization Of Cold Chain Distribution Routes For Guangzhou Transportation Group

With the rapid development of social economy,people's living standards improve and consumers' attitudes toward lifestyle gradually change.Nowadays,the demand of the fresh product is corresponding increased,followed by the improvement of the quality of cold chain logistics.However,the fresh product is vulnerable,which increases the difficulty in storage and transportation,resulting in the problem of high cost.As an important part in the cold chain logistics,the vehicle routing problem of cold chain is a breakthrough to the problem of cost and service time.It provides solutions for reducing the cost of cold chain logistics and improving the service quality from the point of optimizing the route of distribution.On the basis of numerous domestic and foreign researches,combining with the characteristics of cold chain logistics,this article solves the optimization of the vehicle routing problem of cold chain.First of all,the article reviews the literatures of cold chain logistics,vehicle routing problem with its solutions and time windows,laying foundations for the subsequent research.Secondly,in the premise of some limited conditions,considering the vehicle start-up costs,damage costs,energy costs and penalty cost,this article builds a model of the vehicle routing problem of cold chain.Last but not least,discuss and analyze a real example.Considering the flexibility and robustness of genetic algorithm,design a specific genetic algorithm to solve the above example,which can verify the feasibility of the algorithm in the process of solving the case.The high-cost problem is a challenge of the cold chain.This article proposes an aspect of solving the problem,in order to reduce the cost of delivery with the view of route.The problem of cold chain logistics remains to be further improved.