摘要
针对我国现有道路交通条件下典型的信号控制交叉口,通过实地调查,对不同车道宽度、转弯半径的左转车道的饱和车头时距进行现场测定.分析得知左转车道饱和车头时距服从对数正态分布或正态分布.考虑左转车道宽度、转弯半径的影响,给出了左转车道饱和流量的回归计算模型.将模型与HCM2000计算模型进行比较,结果表明,所给计算模型更符合国内的实际使用.
The study focused on an empirical research on saturation time headways on left-turning lane with different lane widths and turning radiuses. Data of eleven intersections which are very typical in Chinese cities, collected by videotape and processed by computer programs, indicated that saturation time headways on left-turning lane were normal or lognormal distributed. A mathematical regression model on left-turning saturation flow was then put forward, considering the effect of lane width and turning radius. After compared with HCM2000 （Highway Capacity Manual 2000） methods, the model was demonstrated more suitable for use in China.
出处
《武汉理工大学学报（交通科学与工程版）》
2009年第5期996-999,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金项目(批准号:50578123)
高等学校博士学科点专项科研基金项目(批准号:20020247036)资助
关键词
信号交叉口
饱和流量
左转车道
车道宽度
转弯半径
signalized intersection
saturation flow
left-turning lane
lane width
turning radius
