典型信号控制交叉口左转电动自行车通行空间交通特性研究及宽容设计方法

研究了典型信号控制交叉口左转电动自行车通行空间的交通特性,设计了左转电动自行车在典型信号控制交叉口通行空间交通特性的数据采集方案,系统地分析了典型信号控制交叉口左转同向并行电动自行车横向间距、左转对向电动自行车避让行为特性,得出如下结论:(1)电动自行车在典型信号交叉口左转时,在同一行车速度同一累计频率下,同一进口道左转同向电动自行车与机动车之间的横向距离要大于不同进口道同向左转电动自行车之间的横向间距;(2)当单位时间电动自行车流量≤0.52辆/s时,单位时间电动自行车流量与左转相位下避让行为个数大致呈线性正相关关系;当单位时间电动自行车流量0.52辆/s时,左转电动车相对会选择跟随并匀速行驶;(3)同向左转电动车的速度大多分布在0～9 m/s。

Study on Traffic Characteristics and Tolerance Design Method of Turn-left Electric Bicycles Space at Typical Signal Control Intersection

This paper studies the traffic characteristics of left-turn electric bicycle traffic space at typical signalized intersections. A data acquisition scheme for traffic characteristics of left-turn e-bike at typical signal-controlled intersections is designed. This paper systematically analyzes the lateral spacing of left-turn parallel electric bicycles and the characteristics of avoiding behavior of left-turning electric bicycles at typical signal control intersections, and draws the conclusions. (1)When the electric bicycle turns left at the typical signal intersection, at the same cumulative frequency of the same driving speed, the lateral distance between the left-turn electric bicycle and the motor vehicle of different inlet lanes is greater than that between the different import lanes and the left-turn electric bicycle. (2)When the electric bicycle flow per unit time is less than 0. 52 vehicles/s, the flow rate of electric bicycles per unit time and the number of avoidance behaviors under left-turn phase are roughly linearly positively correlated. When the flow of electric bicycle per unit time is more than 0. 52 vehicles/s, the left-turn electric bicycle will relatively choose to follow and drive at a uniform speed. (3)The speed of the same-direction left-turn electric vehicle mostly distributes in the range of 0~9 m/s.