Research On Transportation Network Optimization Of Regional Arterial Logistics

With the rapidly development of economy and the logistics industry,the role of logistics industry in the development of national economy is becoming more and more prominent.Modern logistics has become a hot topic in our economic life.With the rapid development of logistics industry,many logistics companies are racing to show up,the rapid development of logistics has also contributed to the intensification of competition.How to build and optimize a reasonable transportation network in a competitive industry,how to rationally plan the transportation path of trunk transportation to reduce logistics cost has become an urgent problem for logistics companies.Due to the large scale of transportation network,the whole research is more difficult.Therefore,the transportation network can be divided into the research of branch logistics line and the research of arterial logistics line.The focus of this paper is studied the transportation network of arterial logistics in the region.Logistics enterprises to ensure the balance of transportation resources,it is generally required that the transport vehicle complete the transport task and return to the distribution center for the next phase of the transportation.Most logistics enterprises in the whole logistics transportation process are facing a lack of scientific management,vehicle scheduling is based solely on experience and poor quality,the route optimization is low,the loading rate of the return vehicle is low and evens the phenomenon of empty drive,these problems have greatly wasted arterial logistics resources.Now,we need to choose a comprehensive transport network optimization method to improve vehicle loading rate and reduce logistics cost.Aiming at the above problems,this paper presents a new form of arterial logistics transportation network by changing the rules of vehicle transport and adding the function of the vehicle passing through the dialing center to increase the loading rate of vehicles and reduce logistics costs.The paper firstly compares the waste of the vehicle loading with the point-to-point and stop-point mode in the direct mode and midway stop mode.It puts forward applicable conditions for the two patterns,takes express enterprises as examples and analyzes actual data.Then the minimum logistics cost is established in the arterial logistics network and the constraint condition model is loaded into vehicles.Through a concrete analysis of the model,using the heuristic algorithm,under the guarantee of the logistics service level at the same time,it is concluded that minimize the total cost of a feasible solution,to improve vehicle loading rate and reduce.Finally,with BS logistics enterprise as an example for analysis.Logistics cost is calculated according to the regional trunk logistics transportation process and the real freight data of the enterprises.A heuristic algorithm is used to find the minimum logistics cost for the improved transport network,the feasibility and practicability of the model and algorithm are proved.Due to the large number of nodes in the transportation network,the overall research is more complex.This paper is only studied the transportation network of arterial logistics in the region and time is not added to the model as a constraint.In the future,the entire transport network and the time constraint can be added as the research direction.