高速公路振动减速标线路段运行速度变化规律研究

选取山区高速公路3类代表性的振动减速标线进行了实地交通流检测。对不同检测断面的速度、交通流量等进行了统计分析;对各检测断面小车、大车速度分布的正态性进行了验证,研究了车辆通过3类振动减速标线的速度变化特征;利用回归分析方法,分别建立了高速公路振动减速标线路段小车、大车的运行速度变化规律模型,并针对模型所反映出的车辆在高速公路振动减速标线路段运行速度呈现先减速、后加速的变化特点,提出设置振动减速标线提醒标志、延长振动减速标线长度及组间距等安全管理建议。结果表明:模型与实测数据吻合较好。

Research on Variational Rule of Operating Speed Along Transverse Rumble Strip on Expressway Section

Three kinds of transverse rumble strips on mountainous expressway were selected to detect the traffic flow data practically.Small and large vehicles' volumes,operating speeds and discrete degrees on expressway sections with transverse rumble strips were evaluated and normalities for speed were verified.Using regression analysis method,small and large vehicles' operating speed models along the rumble strips were developed separately.At the end. consequent suggestions that strengthened the speed control on th...