城市主干道交通运行状况分析与影响因素研究

为深层次地理解城市主干路的交通运行状况的影响因素,研究利用出租车作为数据源获取的浮动车数据,综合地分析了上海市主干道176个路段的平均车速、速度方差等运行状况指标,同时运用多元线性回归的方法,探究了路段的几何设计特征、接入口特征、交叉口渠化、流量、区位及用地特征共6类道路与运行环境特征对主干路路段平均速度及速度方差的影响. 结果表明,道路长度、曲线角度、中央分隔形式、公交专用道设置、车道数、左/右转专用道设置、土地利用复合度、接入口特征等道路与环境特征道路特征均显著影响主干路路段的运行状况.

Analyses of Traffic Operational Condition and Impact Factors on Urban Arterials

In order to better understand the impact factors of the traffic operational conditions on urban arterials, this study used the floating car data (FCD) from taxis to investigate the average speed, speed variance on 176 arterials segments in Shanghai. Multiple linear regression was used to analyze the effect of various rad and environment features including road geometry, access points, intersection canalization, volume, region and land use on speed and speed variance. The results indicated that road and environment features (e.g., length of segment, curvature degree, median separator, number of lanes, left turn or right turn protection, land use and number of access points) would significantly influence the operational conditions on the urban arterial segments.