交通信息与安全2016，Vol.34Issue(5)：68-74,101,8.DOI:10.3963/j.issn1674-4861.2016.05.010
降低交通排放的干线协调信号控制优化方法
An Optimized Method for Reducing Traffic Emissions in Arterial Road Using Coordinated Signal Control
摘要
Abstract
To reduce traffic emissions in an arterial road system, an improved calibration method on the basis of specific power of vehicle is proposed to compute the emission factors during the period of traffic light.An optimization model for allocation of spatial-temporal resources is developed for one arterial intersection group.The decision variable is the effective green time in each phase, and the objective function is to minimize the total emissions for all intersections.By analyzing the relationship between the delay for one platoon and the phase difference between adjacent intersections, this optimized model aiming at minimizing the delay for one platoon, is amended.A case study is carried out to verify this model.A control scheme for traffic signals is firstly obtained as a reference by using traditional methods.The emission factors during the period of traffic light are calibrated by Vissim software.A control scheme for traffic signals is optimized by this proposed method.The results indicate that the emission factors of each pollutant during a green phase are explicitly greater than which during a red phase.Compared with referenced control schemes for traffic signals, both delay of vehicles and traffic emissions decrease by 8-11% at each intersection when the optimized control scheme is adopted.It shows that this proposed model can be applied to decrease both the delay of vehicles and traffic emissions in an arterial road system.Thus, it can generate a coordinated control scheme for traffic signals, and relieve traffic jam.关键词
城市交通/干线控制/协调信号/机动车比功率/排放因子/交通排放/车辆延误Key words
urban traffic/arterial control/coordinated signal/vehicle specific power/emission factors/traffic emissions/vehicle delay分类
交通工程引用本文复制引用
姚荣涵,王筱雨,徐洪峰,赵胜川..降低交通排放的干线协调信号控制优化方法[J].交通信息与安全,2016,34(5):68-74,101,8.基金项目
国家"863"计划项目(2014AA110302)资助 （2014AA110302）
