道路平面交叉口次路远引几何参数设置及通行效率研究

发布时间：2018-04-11 22:30

本文选题：远引掉头 + 延误　；参考：《土木工程学报》2017年10期

【摘要】：次要车流的左转和直行对交叉口车辆运行影响较大,特别是主路交通流量较大时尤为明显,通过次要道路车流远引的方式可以减少交叉口车辆冲突,有利于提高交叉口运行效率。分析了平面交叉口次路远引适用条件与车流组织方法,以延误最小为目标,构建了远引回转车流掉头位置、远引车辆掉头排队车道长度、远引掉头处开口长度与宽度等关键几何参数计算模型,提出了次路远引交叉口延误和通行能力等计算方法。结合实例验证了上述方法的可行性,仿真显示,在一定条件下平面交叉口次路远引可有效减少信号相位数和车辆平均延误,表明了平面交叉口次路远引的交通组织方法对优化城市道路交叉口设计有较好的应用价值。
[Abstract]:The left-turn and direct traffic of secondary vehicle flow has a great influence on the operation of intersections, especially when the traffic flow on the main road is large, so the vehicle conflicts can be reduced by the way of long-distance traffic flow on secondary roads.It is propitious to improve the running efficiency of intersection.Based on the analysis of the applicable conditions and the traffic flow organization method of the secondary road at the intersections, the reverse position of the remote lead turning vehicle flow and the length of the long queue lane of the remote lead vehicle turn back are constructed with the aim of minimum delay.The calculation model of key geometric parameters such as the length and width of the opening at the remote diversion point is presented. The calculation methods of delay and capacity of the secondary road remote intersection are presented.The feasibility of the method is verified by a practical example. The simulation results show that the number of signal phase and the average vehicle delay can be effectively reduced under certain conditions.It is shown that the traffic organization method of secondary road diversion at intersections has a good application value in optimizing the design of urban road intersections.
【作者单位】：合肥工业大学;
【基金】：国家自然科学基金(51578207、61304195)
【分类号】：U491

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