考虑上下游通行能力匹配的干线禁左模型

交通运输系统工程与信息 ›› 2018, Vol. 18 ›› Issue (6): 157-163.

考虑上下游通行能力匹配的干线禁左模型

吴伟¹，刘洋¹，马万经^*2，龙科军¹

1. 长沙理工大学交通运输工程学院, 长沙 410114；2. 同济大学交通运输工程学院，上海 201804

收稿日期:2018-06-19 修回日期:2018-08-04 出版日期:2018-12-25 发布日期:2018-12-25
作者简介:吴伟(1987-)，男，湖南常德人，副教授，博士.
基金资助:
国家自然科学基金(优秀青年)/ Excellent Youth Fund Project of the National Natural Science Foundation of China (51722809)；国家自然科学基金/National Natural Science Foundation of China(61773077).

Left Turn Forbiddance Model Considering Capacity Matching Between Upstream and Downstream Intersections along Arterial Road

WU Wei¹, LIU Yang¹, MA Wan-jing², LONG Ke-jun¹

1. School of Traffic and Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, China; 2. School of Traffic and Transportation Engineering, Tongji University, Shanghai 208104, China

Received:2018-06-19 Revised:2018-08-04 Online:2018-12-25 Published:2018-12-25

摘要/Abstract

摘要：

已有针对禁左的研究大多从单交叉口交通设计的角度，考虑禁左后的左转交通流组织问题，如U-turn，连续流交叉口设计等，缺少干线整体层面的、针对干线禁左位置选择的研究.本文分别以干线整体通行能力最大、干线交叉口间通行能力匹配值最优为目标，以干线最佳禁左交叉口位置、周期时长、绿信比为决策变量，综合考虑禁左绕行范围、流量守恒、绿灯时间、饱和度、周期时长等约束条件，建立干线禁左的混合整数线性规划模型，并采用分支定界法进行求解.以济南纬二路6个连续交叉口为例进行实例验证，结果表明，对比实地模型与Synchro模型，本文模型能有效降低干线整体车均延误，提高干线整体通行能力，降低排队长度，并使交通流在干线上的分布更加均衡.

关键词: 城市交通, 左转相位设计, 禁左, 混合整数规划, 通行能力匹配

Abstract:

Most of the existing researches on left turn forbiddance merely focus on transportation design at a single intersection such as U-turn, continuous flow intersection design and so on to solve left turn detour problem. However, from multi-intersections angle, where to prohibit left turn is rarely studied. In this paper, left turn forbiddance model on multi-intersections along arterial road is proposed. Two objectives, capacity maximization and the capacity matching along arterial road, are investigated. The best locations to prohibit left turn along arterial road, the cycle length and the green time ratio are proposed as the decision variable. Constraints including left turn detour distance, traffic flow conservation, green light duration, degree of saturation, cycle length and so on are considered. This problem has been formulated to a mixed integer linear model and the branch-and-bound method is employed to solve the model. Wei-er Road located in Jinan city is employed as an example for numerical analysis. The results clearly indicate that, compared with the field model and Synchro-based model, the proposed model can effectively reduce the average vehicle delay, improve the overall capacity, reduce the queue length, and make traffic flow well-distributed along arterial road.

Key words: urban traffic, left turn phase design, left turn forbiddance, mixed integer programming, capacity matching

中图分类号:

U491

吴伟，刘洋，马万经，龙科军. 考虑上下游通行能力匹配的干线禁左模型[J]. 交通运输系统工程与信息, 2018, 18(6): 157-163.

WU Wei, LIU Yang, MA Wan-jing, LONG Ke-jun. Left Turn Forbiddance Model Considering Capacity Matching Between Upstream and Downstream Intersections along Arterial Road[J]. Journal of Transportation Systems Engineering and Information Technology, 2018, 18(6): 157-163.

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链接本文: http://www.tseit.org.cn/CN/abstract/abstract19743.shtml

http://www.tseit.org.cn/CN/Y2018/V18/I6/157

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