Effect of left-turning traffic signal lights on vehicle motion delay at intersection
-
摘要: 近年来, 中国大中城市道路主干线交叉口采用了左转专用信号灯, 针对这种交叉口提出了一种车辆延误模型, 并在上海市的一个典型交叉口上进行了实测验证, 并对比分析了车辆按均匀分布和按负二项分布通过停车线的延误结果, 将此模型与停车线延误模型及冲突点延误模型进行了对比。分析表明, 提出的有左转专用信号灯的交叉口车辆延误模型和相应的计算公式有一定的实用性, 左转专用信号灯的采用, 可以避免冲突的发生, 增大路口通行能力Abstract: In recent years, left turning traffic signal lights have been installed at some main intersections in big cities in China. A model describing the delay in vehicle motion at an intersection with left turning lights is established, and the stochastic processes in the cases of the uniform distribution and negative binomial distribution for the vehicles passing through the stop line are analyzed. The model was examined with a typical intersection in Shanghai. The comparision of the presented model with the stop line model and the conflicting point model proves that the present model is applicable. The results show that the application of the left turning signal lights could enhance the traffic capacity and to reduce the conflicts or accidents at intersections.
-
Key words:
- vehicle delay /
- left turning /
- traffic flow /
- queue /
- time headway /
- stochasic distribution
-
表 1 停车线处通过的车辆数
Table 1. The number of vehicles passing the stop-line
左转车 直(右) 车 到达数 实测频数 到达数 实测频数 0 2 0 2 1 10 1 16 2 6 2 7 3 4 3 8 4 4 4 7 5 10 5 14 
下载: 导出CSV
表 2 断面Ⅰ处通过的车辆数
Table 2. The number of vehicles passing the section Ⅰ
左转车 直(右) 车 总到达数 实测间隔数 到达数 实测间隔数 105 15×14=210 137 15×14=210
下载: 导出CSV
-
[1] Webster F V. Traffic signal settings[J]. Road Research Laboratory Technical Paper, 1958, 39(1): 1-39. [2] YANG Xiao-guang, YANG Pei-kun. Simulative models on signalized intersection stop-line delay[J]. Journal of Tongji University, 1993, 21(1): 67-73. [3] 杨晓光, 杨佩昆. 信号灯控制交叉口冲突点车辆延误模拟算法[A]. 第一届海峡两岸都市交通学术研讨会论文集[C]. 上海: 同济大学出版社, 1993.1-7. [4] LIUXi -ming. Proposal for setting an additional left turn signal lights at crossing of urban trunk lines[J]. Journal of Highway and Transportation Research and Development, 1997, 14(2): 39-44. [5] 刘灿齐, 交通流的基本参数[D]. 上海: 同济大学, 1995. [6] Akcelik R. The highway capacity manual delay formula for signalized in tersection[J]. ITE J., 1988, 58(1): 23-27. [7] Akcelik R, Besley M, Roper R. Fundamental Relationships for traffic flows at signalized intersections[R]. Research Report ARR 340. ARRB Transport Research Ltd, Vermont South, Australia, 1999. 1-270. [8] Akcelik R, Chung E, Besley M. Roundabouts: Capacity and performance analysis[R]. Research Report ARR No. 321. ARRB Transport Research Ltd, Vermont South, Australia, 1999.1-164. [9] 杨晓光. 信号灯控制交叉口交通阻尼状态分析研究[D]. 上海: 同济大学, 1991. [10] 王炜, 过秀成. 交通工程学[M]. 南京: 东南大学出版社, 2000. -
点击查看大图
图(2) / 表(2)
计量
- 文章访问数: 237
- HTML全文浏览量: 96
- PDF下载量: 389
- 被引次数: 0
