Research On Release Characteristics Of E-bikes At Signalized Intersections

E-bike as a new green travel tools,its proportion is increasing in urban traffic system structure year by year because of its flexibility,speediness,economy and other characteristics,the development of urban transportation has also brought greater security risks.However,the existing research is mainly aimed at the study of electric bicycle structure and other aspects,and lacks the analysis of its release characteristics.In order to solve the traffic problem more effectively,at the same time reduce the waste of road resources of time and space,this article is based on a large number of actual data collection,the release characteristics of e-bike are studied in the following three aspects.(1)Research on the traffic flow characteristics of e-bikeThis part first discusses the basic traffic flow characteristics of e-bike,and analyzes the three basic parameters of volume,speed and density respectively.It uses the mathematical statistics and regression analysis of the relevant methods,and draws lessons from motor vehicle traffic flow theory,as a result,it establishes the mathematical model between the e-bike speed,density and volume,and the control strategy of e-bike traffic flow is given.(2)Research on the releasing rules of e-bikesThis part mainly discusses the e-bike's affecting the way and degree of correlation between e-bike volume and vehicle traffic,direction uneven coefficient,crosswalk length,width of inlet and outlet,thus the model of e-bike volume is built,and the management countermeasures of efficient release of traffic flow are given.(3)Research on the conflict discriminant model of e-bikeThis part analyses the signal intersection conflict characteristics of e-bike and motor vehicles,and determines the discriminant index for TTC,then clustering analysis method is used to establish the synthetic discriminant model e-bike and motor vehicle conflict in the same direction.The method is verified by the field data of Hang Zhou and Zheng Zhou.The results: The correct rate of non-conflict,non-serious conflict and serious conflict between direct e-bike and motor vehicle is 93.8%,94.3% and 91.6% respectively;the correct rate of non-conflict,non-serious conflict and serious conflict between left turn e-bike and motor vehicle is 94.9%,91.7%,90.6% respectively.In addition,the corresponding improvement measures are put forward to analyze the operation efficiency of the intersections.