平面交叉口需要“瘦瘦身”道路交叉口是城市道路系统中交通冲突的集中点和通行能力的制约点,更是交通拥堵的多发点,提高道路交叉口通行能力是目前很多城市致力解决交通拥堵的措施之一。然而在以实现机动车流畅通为目的的交叉口建设和改造中,我们却制造出了许多“让人 Intersection of plane needs ”thin body “ Road intersection is the focus of traffic conflicts in urban road system and traffic capacity constraints, but also a multi-point traffic congestion, improve traffic capacity of the intersection is currently a lot of cities are committed to solving One of the measures of traffic congestion. However, in order to achieve the smooth flow of motor vehicles for the purpose of the intersection construction and transformation, we have created a lot of ”people