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剖圆环形灯控交叉口的理论与实践 被引量:6

Theory and application of signalized roundabout crossings
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摘要 对环形交叉口采取信号控制能极大地提高环形交叉口的通行能力,但车辆绕行距离长的缺点依然存在,且左转车容量受到一定限制.针对主要道路和次要道路相交的大型环形交叉口流量流向不平衡的特点,以四路环形交叉口为研究对象,对环形交叉口灯控方案进行平面与交通设计改造,并举一个实例对改造方案进行了评价. The signalized roundabout crossings can greatly increase the traffic capacity, but the long distance round is still its disadvantage, and the capacity of the vehicles turning leftward is limited also. Taking a fourroad roundabout crossings as an object, a plane and traffic design of the scheme signalized roundabout crossings is made, aimed at the characteristic that the traffic flow and the running directions are imbalanced in the largescale roundabout crossings where the main roads intersect the secondary roads. Finally, one example is put forward to evaluate the scheme in order to meet the practice demand better.
出处 《天津城市建设学院学报》 CAS 2003年第3期163-167,共5页 Journal of Tianjin Institute of Urban Construction
基金 国家科技攻关项目(2002BA404A09)
关键词 环形交叉口 灯控 通行能力 交通设计 roundabout crossings lamp signal control traffic capacity traffic design
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