城市道路非机动车运行特征研究

A Study on Running Features of Non-motorized Vehicles in Urban Street

随着城市扩张、机动车侵占道路资源现场日益增多,非机动车虽作为重要的交通方式,出行环境和服务水平却每况愈下。为此,文中针对传统自行车和电动自行车这2类主要的非机动车,通过观测有独立通行空间的非机动车道,统计速度、流量和车均占有空间(密度的倒数),考虑电动自行车比例的差异,利用统计回归和相关性分析,研究非机动车运行特征。结果表明,电动自行车比例是影响非机动车运行特征的重要因素;非机动车流具有较明显的可压缩性,速度离散性和随机性较高,流量-密度-速度相关性较弱;车道宽度不同,每延米流量下的运行特征有很大差异。

As cities expanding and motor vehicles encroaching bicycle lane resources,even asone important mode,the traveling environment and level of service(LOS)of non-motorized vehicles are getting worse.Therefore,this study focused on the two main types of non-motorized vehicles:traditional bikes and electric bikes.Based on the observation of the non-motorized lane with independent traffic space,the statistics of speed,volume and per-occupation space of bike(BOS,the reciprocal of density),considering the difference of the proportion of electric bikes,the running features of non-motorized vehicles in urban street were studied with statistical regression and correlation analysis.It showed that the proportion of electric bikes was an important factor influencing the running features of non-motorized vehicles;the non-motorized vehicles flow had obvious compressibility,high speed dispersion and randomness,and weak inter dependency between volume,speed and BOS;for bicycle lanes with different widths,under the same volume per meter and hour,running features had great diversity.