Research On Logistics Distribution Center Location Of Expressway Serving Area Based On AGA

Expressway service area as an important part of the highway,with the rapid development of expressway network,its own demand for distribution has formed a certain scale.Due to the unique closure of the expressway,it restricts the access of the vehicle,the long distribution route caused by the long distance from the supplier,which restricts the logistics distribution level of the service area and hinders the rapid development of the expressway service area.According to the needs of the service area,the establishment of a common distribution center,a scientific and rational location decision-making can not only improve the distribution efficiency of the service area,but also provide a boost for the further transformation of the expressway service area and the optimization of the service area.In this paper,the author first summarizes the research on the logistics distribution of highway service area,and expounds the relevant basic theory.After discussing the selection of the distribution mode based on the service area,the significance of the common distribution of expressway service area is expounded.Then,from the aspects of the establishment and empirical analysis of the model,the paper discusses the distribution cost,the inventory cost and the construction cost of the multi-supplier multi-commodity from the more realistic point of view,aiming at establishing the common distribution center of the service area Cost of the multi distribution center location model.For the previously established model,use Python to program.The GA is easy to fall into the local optimal solution,so the AGA is used to solve the final site selection.The Dijkstra algorithm is used to solve the shortest path between the service area and the service area.In the last chapter,65 cases of expressway service area in LN province are selected as the sample of empirical analysis,and the location result of the common distribution center of LN service area is given,and the selection of supplier and the service area The cost of the selected distribution center is determined,and the validity of the model and algorithm selection is verified.In this paper,we assume that the demand for goods in the service area is normal distribution when constructing the model,and when the post-verification model is feasible,SPSS is used to verify whether the demand data satisfies the normal distribution and determine The data are subject to the normal distribution.After the model is solved by the AGA,the No.3,No.6,No.38,No.44 and No.51 are selected as the distribution center of the expressway service area in LN province.