Research Of Shenyang Urban Traffic System Based On The Complex Networks Theory

The urban road traffic system play an important role in the city,which is the important carrier of people’s daily and the important conditions of urban development.In recent years,with the development of economy,the number of private cars increased rapidly.As a result of the phenomenon,traffic jam and road fault is becoming more and more serious.In order to making the urban road traffic system can deal with the emergency of traffic effectively.We must be reasonable to generate and optimize the urban traffic network to improve the stability of road traffic system.As a new research method,complex network theory can reveal the complex characteristics of urban road traffic system.Urban road traffic system can be regarded as a typical complex network model.Under the theory of complex network,we use the primitive method and dual method to model the actual traffic network of Shenyang city.Than we analyze the structure characteristics of the urban traffic model and statistics analysis each parameter of the network topology,as long as the topological structure of complex networks,it can conclude that the network statistical characteristic value reflects the change of characteristics of urban traffic network.This paper analyzed the influence of road traffic system robustness and reliability under various influence factors,and the relative merits of different methods of road planning structure.With the dual method to mode Shenyang Tiexiqu road traffic,it can conclude that the Tiexiqu network possess small world and scale-free features under the complex network theory analyzing.Then,in order to analyze the robustness of Tiexiqu network,simulated under random attacks and selective attacks two mode to analyze network status changes in road traffic network.This paper regard the global efficiency as urban road traffic network connectivity reliability,and the network clustering coefficient on behalf of tightness of road network.Using the network to identify the vulnerable road in the traffic network,and analyze the important road of the road system.Proposed improvement plan for easy to damage road improve and traffic transportation efficiency.With the attacking strategy conclude that it behavior weakly ability to resist attacks of selective attack and has the strong fault tolerance under random attack.