吉柯， 王海晓^*， 杨锋， 王波

（  内蒙古农业大学能源与交通工程学院，呼和浩特 010018；  ）

摘要： 交叉口是制约道路网通行能力的瓶颈，受城市道路有限空间的制约，全互通立交难以实施。无阻滞设计是解决城市交叉口拥堵与延误的新理念，本文提出了两种造价经济、施工方案可行的无阻滞交叉口设计方案。将双支交叉小型跨线桥与变速车道移位斜交相结合的设计方案应用于交通流量较大的交叉口，将远引式左转与上跨高架桥相结合的设计方案应用于流量较低的交叉口，并通过交通仿真验证了在不同交通流量负荷条件下使用相应设计方案后，大幅度提高了交叉口的通行能力，降低了干道路网的延误率。
关键词： 交通运输规划与管理；无阻滞设计；无信号交叉口；Vissim仿真

Ji Ke， Wang Hai-xiao^*， Yang Feng， Wang Bo

（  Energy and Transportation Engineering School,Inner Mongolia Agricultural University, Hohhot 010018；  ）

Abstract： Intersection is the bottleneck that restricts the capacity of road network traffic.Restricted by the limited space of urban road, the interchange is difficult to implement. No block design is a new idea to solve the congestion and delay of urban intersections.In this paper, the design scheme of two kinds of non blocking intersection of cost economy and construction scheme is put forward.The double cross small flyover and speed change lane shift skew combined design scheme is applied to large traffic intersection The design scheme of the combination of the far leading left turn and the overhead bridge is applied to the intersection with lower flow rate.This two kinds of design schemes will improve the traffic capacity of the intersection and reduce the delay rate of the trunk road network.
Keywords： Transportation planning and management; non blocking design; non signal intersection; Vissim simulation

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