Research On Short Distance Travel Management And Control Strategy Of Urban Expressway

With the development of the city and the rapid growth of urban transportation demand,the expressway system has gradually improved,and the problem of rapid road congestion has gradually emerged.The fast road with long-distance and high-speed transportation as the characteristics of transportation,in the morning and evening peaks become a slow-speed road and a large number of short-distance traffic transport channels.The existing research lacks the analysis of the rapid road traffic source and vehicle running distance analysis,that is,the direct research on the fast road congestion without researching a large number of traffic sources on the expressway.This paper focuses on the analysis of the fast-distance traffic distance,and separates the short-distance traffic that does not meet the expressway function expression.It develops a control strategy for its traffic characteristics and mitigates the fast road congestion from the perspective of reducing short-distance traffic.Based on the data of Changchun Expressway,this paper analyzes the parameters such as expressway distance,running speed,interweaving and delay from the entire expressway system to a single entrance and exit node,and separates the fast-distance short-distance traffic to define and classify it.Combining the characteristics of morning and evening peak short-distance traffic operation,the traffic characteristics are studied,and its production mechanism and main hazards are analyzed.Then from the control point of view,this paper proposes the optimization design of the fast road entrance and exit,including the hard isolation setting,the design of the entrance and exit markings,the design of the expressway entrance and exit spacing,and the optimization of the entrance and exit spacing.From the perspective of management,the fast road dynamic traffic guidance considering short-distance traffic is proposed.Finally,by recalculating the shortcomings of the existing multi-path probability distribution model in terms of fast road short-distance traffic,the fast road resistance is recalculated.Combined with the analysis of fast-distance short-distance traffic characteristics,algorithm and distribution scheme of the path selection model are optimized,and case analysis is carried out.The expressway is the backbone of urban transportation,but the rapid roads are becoming increasingly crowded due to the influx of a large number of short-distance traffic.Controlling short-distance traffic is one of the important ways to alleviate the problem of fast road congestion.This paper defines and classifies fast-distance short-distance traffic and analyzes its traffic characteristics.From the perspective of control,it limits the impact of short-distance traffic on traffic,which is of great significance for mitigating rapid road congestion.