交通信息与安全2018，Vol.36Issue(1)：65-73,9.DOI:10.3963/j.issn.1674-4861.2018.01.009
基于效率-安全评价的近距离错位交叉口信控优化
An Optimization of a Signal Control Scheme for Close Stagger Intersections based on Evaluations of Efficiency and Safety
摘要
Abstract
In urban road systems,vehicles from different directions interfere greatly with each other in weaving sec-tions between two close stagger intersections.Especially,drivers′continuous lane change operations within limited wea-ving length have negatively influences on traffic efficiency and safety.Therefore,a coordinated signal control scheme for safety is developed based on comprehensive consideration of efficiency and safety.A signal light for right-turning vehicles is set up in a minor road of an upstream intersection to separate the conflicts from space-time,and systematically optimi-zing phrases and timing for close stagger intersections,in order to reduce vehicle delays and improve safety level.Then, intersections of Pushang Road-Jinzhou South Road-Jingang Road in Fuzhou are taken as a case study.Using Vissim and SSAM,the proposed scheme is compared with the current scheme,and another isolated optimization scheme in the re-spect of efficiency and safety.The results show that compared with current scheme,the efficiency and safety level of the isolated optimization scheme and the proposed scheme improved by 36.17% and 57.17%,respectively,w hich verifies the superiority of the proposed scheme.In addition,by adjusting distance between two intersections in Vissim,a similar com-parison has been developed,and the results show that the shorter of the distance of close stagger intersections is,the big-ger of the superiority of the proposed scheme.关键词
交通规划与管理/近距离错位交叉口/信控优化/Vissim/SSAMKey words
traffic planning and management/close stagger intersections/optimization of signal control/Vissim/SSAM分类
交通工程引用本文复制引用
罗慧敏,郑亮..基于效率-安全评价的近距离错位交叉口信控优化[J].交通信息与安全,2018,36(1):65-73,9.基金项目
国家自然科学基金项目(71501191)、中国博士后科学基金项目(2014M552165,2015T80889)、湖南省科技厅重点研发项目(2015ZK3004)资助 （71501191）
