机非划线路段非机动车交通流特征研究

Study on Non-motorized Traffic Flow Characteristics in Motor Vehicle and Non Motor Vehicle Crossing Section

针对传统方法获取非机动车流数据难以识别的问题,应用无人机航拍获取更高质量的视频资料来分析混合非机动车流特征。研究结果表明:混合非机动车流三参数(流量、密度、速度)之间的关系有别于机动车流,非机动车流在路段上很少存在排队现象;在非排队状态下,二次函数能够较好地描述混合非机动车流密度-流量的关系;电动自行车的速度随着密度的增加逐渐降低,而传统自行车的速度基本上不受密度的影响;混合交通流速度受流量、自行车比例的双重制约。

This paper analyzes the characteristics of mixed non-motor vehicle traffic by using UAV to obtain higher quality video data for the difficult problem of using traditional method to obtain non-motor vehicle flow.The results show that the relationship between the three parameters of mixed non-motor vehicle flow is different from that of motor vehicle flow：there is little queuing phenomenon in non-motor vehicle flow.In nonqueuing state,the quadratic function can describe the mixed non-motor vehicle flow density-the relationship between the flow rate;the speed of the electric bicycle gradually decreases with the increase of the density,and the bicycle speed is basically not affected by the density;the mixed traffic flow rate is constrained by the flow rate and the bicycle proportion.The research results of this paper can provide theoretical basis for the future research of non-motor vehicle traffic flow.