Study On The Impact Of Roadside Facilities On Traffic And Improvement Measures

Because of the rich corridor resources and high economic value,the corridor has become the preferred location for many commercial and service facilities.Since our country has not yet introduced the guiding opinions of the layout,management and access design of the roadside facilities,the problem of non planning and private access to the highxway on both sides of the highway has become increasingly prominent,and the problem of traffic disturbance and traffic accidents caused by the unreasonable layout of the roadside facilities is very serious.Therefore,it is important to study the influence of Roadside Facilities on highway driving,and put forward measures to ensure smooth traffic safety and highway transportation,which has important theoretical and practical significance.This paper,starting with the investigation and characteristic analysis of the road side facilities,has fully grasped the problems in the layout of the road side facilities,the design and management of the access ports in China.Through the analysis of the impact of the road side facilities and vehicles on the road traffice the subtraction model of the road side facilities affecting the road capacity is constructed by using the method of separate Lane calculation.By analyzing the relationship between the access distance of the roadside facilities and the reduction of traffic capacity,the speed loss principle of the straight line vehicles is based on the speed loss principle,and the different speed is put forward.The reasonable distance of road capacity is guaranteed under the degree of degree loss.By studying the influence of the plane layout and geometric design of the roadside facilities on the traffic safety,the method of determining the main design parameters,such as the selection principle of the roadside facilities and the turning radius,is put forward,and the road side facilities are planned from two aspects of the road side facilities management and the technical improvement.The layout,acceleration and deceleration lane design,traffic channelization,speed control and sight distance support are systematically analyzed and demonstrated.In order to reduce the impact of road side facilities on road traffic,the paper selects a section of a highway of the Da(Li)-Li(Jiang)first grade highway to carry out an example application analysis,puts forward specific improvement measures and parameters selection suggestions,and verifies the rationality and effectiveness of the design parameters and improvement measures by simulation and simulation methods,which are set up for the road side.It provides reference and reference for standard management,layout design and safety improvement,and has good theoretical and practical value.