Research On Function Layout Of Highway Tourism Distribution Center Under Multi-objective Constraints

As the process of urban transportation construction continues to accelerate,traditional automobile passenger transportation services are gradually declining.Affected by the competitive pressure of high-speed rail and civil aviation,it has become an inevitable trend for traditional highway passenger transportation services to seek transformation and upgrading.According to the characteristics of highway passenger transportation,it is suitable for small,bulk and deep transportation.As a result,a large number of scholars have combined the automobile passenger terminal with the tourism industry to form a new product of highway passenger transportation tourism distribution center.In order to speed up the transformation and upgrading of traditional automobile passenger stations,this article has carried out a certain research on the layout of the plane-type tourism distribution center station facilities.First of all,according to the urban planning restrictions,the area to be deployed(ie the tourism distribution center,referred to as the "center")is divided into several candidate areas(or functional areas);Secondly,on the basis of the research on the layout specifications of related functional areas,explore the similarities and differences between them and the layout requirements of the distribution center,and give a reference for calculation of the scale index suitable for the distribution center;Second,take the average transfer distance as the starting point,summarize and quantify the methods for determining the size of the facilities of the stations,and use multiple prediction methods to predict the passenger flow and transfer volume of the terminal;Fourth,in consideration of the size and capacity limitations of each station facility,arrange each station facility in a candidate area to form an initial layout plan;Fifth,on the basis of analyzing the generation method of traffic flow lines in the station,the conflict process of functional zones and the coordination of internal and external traffic,it is finally determined that the average transfer distance,the degree of flow line interference and the coordination of internal and external traffic are the optimization objective functions to establish the optimization of the station facilities.Layout modelSixth,on the basis of comprehensive comparison of various algorithms,it is determined to choose a non-dominated sorting genetic algorithm with an elite strategy to solve the model.This algorithm has the advantages of fast convergence and fewer iterations;Finally,the Longtousi Tourism Distribution Center in Yubei District of Chongqing City is selected for empirical analysis.Through empirical analysis,the current situation of regional traffic around Longtousi Tourism Distribution Center is discussed.Considering the average transfer distance,the degree of circulation interference,and the coordination of regional traffic,the best layout plan obtained in this paper is: average transfer distance 100.873 m,The flow line interference degree is 1.34.This scheme not only has a short travel distance in the passenger station,but also has a low flow line interference degree,and has a small impact on regional traffic..