论文部分内容阅读
为有效降低车速、减少双车道公路交通事故的发生,选取“5+7”型、“10+10+10”型、“10+8+6+4+2”型减速标线、橡胶减速垄、比利时路面等典型减速设施和典型路段进行了减速效能试验与分析;利用统计分析方法研究了经过减速设施后车辆运行速度的变化特征,并基于运行速度的连续性,给出了长直线路段减速设施的设置位置。研究结果表明:橡胶减速垄和比利时路面的减速效果明显,但运行速度变化剧烈,对行车舒适性影响较大;减速标线对小车效果明显,随着减速标线组数和条数的增多,减速效果更为明显。研究结果为合理地选择双车道公路减速设施及确定其具体设置参数提供了理论依据。
In order to effectively reduce the speed and reduce the occurrence of traffic accidents on two-lane road, select “5 + 7” type, “10 + 10 + 10” type, “10 + 8 + 6 + 4 + 2” Deceleration test and analysis of typical deceleration facilities and typical road sections such as road marking, rubber retarding ridge and Belgian pavement. The statistical analysis is used to study the changing characteristics of vehicle running speed after passing through deceleration facilities. Based on the continuity of running speed, Out of a long straight section deceleration facilities set up location. The results show that the deceleration effect of rubber deceleration ridge and Belgian pavement is obvious, but the change of operating speed is drastic, which has a great influence on driving comfort. The effect of deceleration marking on car is obvious. With the number and number of deceleration marking lines increasing, Slowdown effect is more obvious. The results provide a theoretical basis for judicious selection of two-lane highway decelerating facilities and determining their specific setting parameters.