左转绕行的联合三交叉口通行能力优化研究
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摘要
以某一联合三交叉口区域为例,以经济有效的手段挖掘已有交叉口的潜在通行能力,研究在"三角形"结构的主次交叉口资源利用不均衡的联合交叉口区域中,组织部分左转车流在次交叉口绕行对区域交叉口通行能力和车均延误的影响。文章提出以最大车流通过量为目标,使每股流向在新旧控制方案下极限通行能力比值最小值最大化的模型思想,得出每股车流向通行能力可提高最大比例和同一周期时长下的最优信号配时方案,并对联合三交叉口区域进行实例仿真分析。分别对交叉口区域在绕行前后不同控制方案下的行程时间、平均排队长度、平均延误等进行对比分析,并仿真每股流向交通量增加20%后的平均延误情况。结果表明,左转绕行下新的控制方案,尤其是单口控制方案2有效提高了交叉口通行能力,交叉口车均延误明显降低。
Taking three-junction intersections as an example,this paper aims to explore the potential capacity of existing intersections by cost-effective means,and to balance the resource utilization of the primary and secondary intersections of the"triangle"structure intersections area.Reorganizing the leftturn traffic route on the basis of road condition is an effective way to reduce the signal phase from four to three of the main intersection.This paper presents an approach to optimize both a main signal and two auxiliary signals to achieve signal plans of the intersection,and aims to maximize the road capacity by controlling the lane allocation scheme and signal phase.The method requires an auxiliary road,connecting two vertical streets,which assists vehicles from four directions of the main intersection turn left.This paper,compared with the travel time,average queue length and average delay of the combined intersections at different control schemes in a real-world intersection,analyses the average delay of simulation after each flow vehicles increasing by 20%.The results show that the new control scheme with left-turn detouring,especially the control scheme 2,effectively improves the traffic capacity of the intersection,for which the delay of the intersection is significantly reduced.
Taking three-junction intersections as an example,this paper aims to explore the potential capacity of existing intersections by cost-effective means,and to balance the resource utilization of the primary and secondary intersections of the"triangle"structure intersections area.Reorganizing the leftturn traffic route on the basis of road condition is an effective way to reduce the signal phase from four to three of the main intersection.This paper presents an approach to optimize both a main signal and two auxiliary signals to achieve signal plans of the intersection,and aims to maximize the road capacity by controlling the lane allocation scheme and signal phase.The method requires an auxiliary road,connecting two vertical streets,which assists vehicles from four directions of the main intersection turn left.This paper,compared with the travel time,average queue length and average delay of the combined intersections at different control schemes in a real-world intersection,analyses the average delay of simulation after each flow vehicles increasing by 20%.The results show that the new control scheme with left-turn detouring,especially the control scheme 2,effectively improves the traffic capacity of the intersection,for which the delay of the intersection is significantly reduced.
引文
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[20]林培群,顾玉牧,卓福庆,等.交叉口左转交通流两种组织方式的延误计算模型[J].华南理工大学学报(自然科学版),2015,43(12):119-126.
[21]周亚平,张妍妍.U型交叉口通行能力分析及管理启示[J].上海管理科学,2016(6):96-100.
[22]TAHA M M A,ABDELFATAH A.Impact of Using Indirect Left-turns on Signalized Intersections′Performance.[J].Canadian Journal of Civil Engineering,2015,44(6).
[23]雍安娜,朱海笑,马欣.于VISSIM仿真的交叉口信号控制优化方法研究[J].交通科技与经济,2015,17(1):73-77.
[2] 米荣伟,王文强,赵琴,等.大型车占比例较高的左转车道改进方案分析[J].交通科技与经济,2018,20(4):33-39.
[3] 李芳,吴芳.基于交通冲突技术的交叉口安全评价[J].交通科技与经济,2011,13(5):64-66.
[4] 周洁,邵长桥.信号交叉口专用双左转车道交通特性分析[J].交通工程,2010(1):10-16.
[5] 陈永恒,朱自博,曲昭伟,等.分离式专用双左转车道的释放特性[J].吉林大学学报(工学版),2016,46(3):751-755.
[6] AL-KAISY A F,STEWART J A.New approach for developing warrants of protected left-turn phase at signalized intersections[J]. Transportation Research Part A,2001,35(6):561-574.
[7] 孙锋.信号控制交叉口左转专用相位设置依据研究[D].长春:吉林大学,2006.
[8] 杨伟,马传继.城市多路交叉口交通组织优化设计[J].交通科技与经济,2013,15(6):70-72.
[9] 龙科军,陈群.道路网络交叉口“禁左”交通组织优化[J].北京工业大学学报,2011(6):876-881.
[10]杜先汉.基于单向和禁左的区域交通组织研究[D].成都:西南交通大学,2012.
[11]苏小军,隆冰.基于VISSIM仿真的禁左区域车流组织研究[J].公路交通技术,2015(1):114-120.
[12]朱锐,李林波,吴兵.基于VISSIM仿真的交叉口间接左转适应性研究[J].交通科技,2011(5):96-99.
[13]赵靖,马万经,韩印.出口车道左转交叉口几何及信号组合优化模型[J].中国公路学报,2017,30(2):120-127.
[14]XUAN Y,DAGANZO C F,CASSIDY M J.Increasing the capacity of signalized intersections with separate left turn phases[J].Transportation Research Part B Methodological,2011,45(5):769-781.
[15]ZHOU Y,ZHUANG H.The optimization of lane assignment and signal timing at the tandem intersection with pre-signal[J].Journal of Advanced Transportation,2014,48(4):362-376.
[16]AUTEY J,SAYED T,EL E M.Guidelines for the Use of Some Unconventional Intersection Designs[C]//4th International Symposium on Highway Geometric Design.2010.
[17]TABERNERO V,SAYED T.Upstream Signalized Crossover Intersection:An Unconventional Intersection Scheme[J].Journal of Transportation Engineering,2006,132(11):907-911.
[18]KIM M,LAI X,CHANG G L,et al.Unconventional Arterial Intersection Designs Initiatives[C].//IEEE Conference on Intelligent Transportation Systems,Seattle,2007.
[19]刘旭东,邹纪元.基于VISSIM仿真的USC型交叉口通行能力研究[J].现代交通技术,2012,9(4):57-61.
[20]林培群,顾玉牧,卓福庆,等.交叉口左转交通流两种组织方式的延误计算模型[J].华南理工大学学报(自然科学版),2015,43(12):119-126.
[21]周亚平,张妍妍.U型交叉口通行能力分析及管理启示[J].上海管理科学,2016(6):96-100.
[22]TAHA M M A,ABDELFATAH A.Impact of Using Indirect Left-turns on Signalized Intersections′Performance.[J].Canadian Journal of Civil Engineering,2015,44(6).
[23]雍安娜,朱海笑,马欣.于VISSIM仿真的交叉口信号控制优化方法研究[J].交通科技与经济,2015,17(1):73-77.