Coordinated optimization of signal timing for intersections with dynamic shared through-and right-turn lanes  

作　　者：Zhe Zheng Jian Yuan Kun An Nan Zheng Wanjing Ma 

机构地区：[1]The Key Laboratory of Road and Traffic Engineering,Ministry of Education,Tongji University,Shanghai 201804,China [2]Department of Civil Engineering,Monash University,Melbourne VIC 3800,Australia

出　　处：《Journal of Intelligent and Connected Vehicles》2024年第3期219-228,共10页智能网联汽车（英文）

基　　金：supported by the National Natural Science Foundation of China(Nos.52325210,52131204,and 52302411);the Shanghai Science and Technology Innovation Action Plan Project(No.19DZ1209004);the Fundamental Research Funds for the Central Universities(No.22120220137).

摘　　要：Through and right-turn shared lanes are widely designed to increase the capacity of through traffic,but they can also cause delays for right-turn vehicles.This study presents a dynamic control method for a shared lane that prioritizes right-turn vehicles at the beginning of the cycle and subsequently allows through traffic to queue in the shared lane for saturated discharge.The traffic wave model is employed to reveal the dynamics of the traffic flow under this control and to derive the relationships among major traffic parameters.Constrained by the major relationship,a linear programming approach to minimize the total queue length is developed to determine the proper values of control parameters,including the shared area length,subordinate signal time lag,and shared or exclusive duration.A sensitivity analysis of the control parameters for different arrival rates and flow ratios is performed.Comparisons are conducted among the dynamic shared lane,the fixed exclusive lane,and the fixed shared lane.The results show that the dynamic control method results in a lower delay for both through and total traffic.

关 键 词：traffic control dynamic lane right-turn traffic optimization model 

分 类 号：U495[交通运输工程—交通运输规划与管理]