涡轮式二相位平面交叉口设计研究  

A Study on Design of Turbine Two-Phase Signalized At-Grade Intersection

作　　者：李巧燕[1] 邹志云[1] 肖代全[1] 赵宪尧[1] 

机构地区：[1]华中科技大学土木学院,武汉市430074

出　　处：《公路》2010年第3期106-110,共5页Highway

摘　　要：针对于目前交叉口普遍采用的四相位控制方式带来的副作用,提出在可用面积较大的交叉口运用涡旋式交叉口的设计方案,将左转机动车变成另一个方向的直行机动车,消除左转机动车在交叉口产生的冲突点,变四相位为两相位控制,从而提高交叉口通行能力和减少延误。对涡轮式交叉口进行了介绍,并以一个具体交叉口为例进行分析,结果表明,运用涡轮式交叉口设计后,交叉口通行能力得到大大提高,车均延误明显减少。Aiming at the side effect from the use of four-phase signalized control at intersection,a new method of intersection design is introduced,whose track of left-turn vehicles is like a turbine type to change the left turn vehicles into direct movement in another approach, So that the traffic capacity of the intersec- tion would he enlarged and the cycle time be shorten. An example is also employed to reveal the traffic benefit before and after using the new method. The results show that the traffic capacity is obviously enlarged and cycle time shorten a lot.

关 键 词：交叉口 通行能力 变左转为直行 涡轮式 

分 类 号：U412.351[交通运输工程—道路与铁道工程]