Left-turn phasing selection considering vehicle to vehicle and vehicle to pedestrian conflicts

作     者：Kakan C.Dey Md Tawhidur Rahman Subasish Das Amrit Manova Williams Kakan C.Dey;Md Tawhidur Rahman;Subasish Das;Amrit Manova Williams

作者机构：Wadsworth Department of Civil and Environmental EngineeringWest Virginia UniversityMorgantownWV 26506USA AECOM Technical ServicesInc.PhoenixAZ 85020USA Ingram School of EngineeringTexas State UniversitySan MarcosTX 78666USA Davenport EngineeringCharlotteNC 28273USA 

出 版 物：《Journal of Traffic and Transportation Engineering(English Edition)》 (交通运输工程学报（英文版）)

年 卷 期：2023年第10卷第1期

页      面：58-69页

核心收录：

学科分类：1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 082303[工学-交通运输规划与管理] 0813[工学-建筑学] 0814[工学-土木工程] 082302[工学-交通信息工程及控制] 0823[工学-交通运输工程] 

基　　金：supported by Dr.Dey's start-up funding provided by West Virginia University 

主　　题：V-V conflicts V-P conflicts Left-turn phasing Pedestrian Warrants 

摘      要：Left-turning vehicle movement at signalized intersections with permissive left-turn phases creates safety concerns due to the higher chance of conflict with opposing-through vehicles and *** this research,a simulation-based study was conducted to evaluate pedestrians’impact on traffic conflicts between left-turning vehicles and opposing-through vehicles(V-V conflicts)as well as traffic conflicts between left-turning vehicles and pedestrians(V-P conflicts)in the permissive left-turn phasing *** with different opposing-through volumes,left-turn volumes,number of opposing-through lanes,and pedestrian volumes were modeled in VISSIM,a traffic *** surrogate safety assessment model(SSAM)was used to estimate the number of V-V and VP *** effect of pedestrian presence on V-V and V-P conflicts was evaluated using simulation scenarios with and without pedestrian *** results revealed that pedestrian presence increased both V-V and V-P *** pedestrian presence increased the total number of traffic conflicts,permissive left-turn phasing processed fewer left-turn vehicles to maintain the same level of intersection safety with pedestrian presence compared to the no-pedestrian *** current left-turn phasing decision guidelines do not consider the impacts of pedestrian presence,this research quantified pedestrian-influenced and pedestrian-involved left-turn traffic conflicts to determine appropriate left-turn signal phasing decisions to ensure safe and efficient crossing of pedestrians and vehicles at signalized *** simulation-based study’s findings can be beneficial in the decision making of left-turn phasing selection as the before-after intersection safety performance analysis by collecting field data often resources intensive.