机非划线路段非机动车交通流特征

Blend of mixed non-motorized traffic flow of crossed road

电动自行车与自行车组成的混合非机动车流是一种特殊的混合交通流,两者在速度上具有较大的差异,研究其交通流特征具有重要的理论与现实意义。本文针对采用传统方法获取非机动车流存在难以辨别的难题,应用无人机进行航拍获取更加高质量的视频数据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之间的关系有别与机动车流,这主要是非机动车流在路段很少存在排队现象;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,而自行车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。文章的研究成果能够为以后非机动车交通流的研究提供理论基础。

The mixed non-motorized vehicle flow composed of electric bicycle and bicycle is a special mixed traffic flow,which has great difference in speed,and study its traffic flow characteristics has important theoretical and practical significance.In this paper,the traditional method of obtaining non-motorized vehicle flow is difficult to distinguish,and the application of UAV to obtain higher quality video data analysis mixed non-motorized vehicle flow characteristics.The results show that the relationship between the three parameters of the mixed non-motorized flow and the vehicle flow,which is mainly right and wrong flow in the section of the road rarely has queuing phenomenon; In the non-queued state,the quadratic function can better describe the relationship between the Non-motorized traffic flow density and flow; The speed of electric bicycle is decreased with the increase of density,and the speed of bicycle is not affected by density basically; The speed of mixed traffic flow is limited by the ratio of speed and bicycle.The research results can provide a theoretical basis for the study of non-motorized traffic flow.