基于车辆延误的左转车道远引掉头设置方法  

The Methods of Setting Left-turn Lane with U-turn Based on Vehicle Delay

作　　者：韩高峰[1,2] 叶雨霞 HAN Gaofeng;YE Yuxia(Anhui Transport Consulting&Design Institute Co.,Ltd,Hefei Anhui 230088,China;Highway Traffic Energy Saving and Environmental Protection Technology Transportation Industry R&D Center,Hefei Anhui 230088,China)

机构地区：[1]安徽省交通规划设计研究总院股份有限公司,安徽合肥230088 [2]公路交通节能环保技术交通运输行业研发中心,安徽合肥230088

出　　处：《交通节能与环保》2019年第6期58-61,共4页Transport Energy Conservation & Environmental Protection

摘　　要：以信号控制路口为研究对象,以车辆行驶的效率和安全为主要指标,研究不同道路条件、交通流组成及交通控制等因素对远引掉头的影响,结合信号控制路口交通流的特点确定远引掉头形式。采用VISSIM仿真软件,以交叉口内车辆平均延误作为评价指标,从行车安全性及行车效率两方面综合分析远引掉头方式的使用对路网交通流的影响。结果表明:在低流量下,让行控制在延误水平上相比信号控制具有明显优势,但交通安全性较差。当流量达到一定数量时,采用信号控制方式可以将交叉口的交通流在绿灯周期内以连续流的形式通过交叉口,使得交叉口的延误水平降低、安全水平提高。Taking the signalized intersection as the research object,and the efficiency and safety of driving as the main indexes,the influence of different road conditions,traffic flow composition,traffic control and other factors on the U-turn has been studied,and the form of U-turn has been determined by combining the characteristics of traffic flow at signalized intersection. The VISSIM simulation software has been used to comprehensively analyze the influence of applying the different forms of U-turn on the traffic flow,with the average delay of vehicles at the intersection as evaluation index,from two aspects of traffic safety and traffic efficiency. The results show that,in low traffic flow,the delay level under yield control has obvious advantages over the signal control,but the traffic safety is worse. After the flow reaching a certain amount,the traffic can pass through the intersection in the form of continuous flow in the green light cycle by using signal control,which reduces the delay and improves the safety level of the intersection.

关 键 词：延误 通行效率 信号控制路口 远引掉头 

分 类 号：U491.255[交通运输工程—交通运输规划与管理]