长区间掉头车辆特性分析及其安全评价

doi:10.13229/j.cnki.jdxbgxb.20221336

Abstract

Abstract:

In order to explore the motion and safety characteristics of the U-turn vehicles at long-range U-turn intersections， based on the measured data of the U-turn vehicles at typical locations， we analyzed the characteristics of the U-turn vehicle's trajectories and traffic parameters with the help of probability theory and statistical knowledge， and established the U-turn trajectory model. We used traffic conflict technology （TCT） and take post encroachment time （PET） as the indicator to study the feature of vehicles security of U-turn vehicles. Three conclusions are drawn from this study. First， there is a significant difference in the headway between long-range U-turn vehicles and those at intersections without opening： the stability of the headway of long-range U-turn vehicles is weak， and the release of vehicles is seriously disturbed by the turning flow； Secondly， when turning around at a long interval U-turn intersection， the starting position of vehicle turning is dispersed and the distribution of U-turn trajectories is quadratic distribution. Third， the setting of long interval turning lanes will increase the interference between traffic flows at intersections， thus increasing the number of conflicts with vehicles in the opposite direction. Cross-conflict accounts for the majority of conflicts in long interval U-turn intersections， and rear-end collision is the main conflict type in U-turn intersections without opening. The above research conclusions are helpful to improve the safety of long interval U-turn intersections.

Key words: engineering of communications and transportation system, trajectory model, headway, safety analysis, traffic conflict

CLC Number:

U491.31

Zhao-wei QU,Lin LI,Yong-heng CHEN,Chang-jian WU. Traffic characteristics and safety analysis of long interval U-turn intersections[J].Journal of Jilin University(Engineering and Technology Edition), 2024, 54(8): 2206-2213.

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References 16

1	吴震, 彭国雄, 杨晓光. 中小城市干道交通流量流向特征及混合车道的使用[J]. 武汉理工大学学报: 交通科学与工程版, 2005(2): 256-258.
	Wu Zhen, Peng Guo-xiong, Yang Xiao-guang. Characteristic analysis of urban artery flow in middle cities & use of shared lanes[J]. Journal of Wuhan University of Technology (Transportation Science & Engineering), 2005(2): 256-258.
2	Ma´en Mohammad A A, Mohamed A A, Lee J Y, et al. Safety evaluation of median U-turn crossover-based intersections[J]. Transportation Research Record, 2 020, 2 674(7): 206-218.
3	Levinson H S, Potts I B, Harwood D W, et al. Safety of U-turns at unsignalized median openings: some research findings[J]. Transportation Research Record, 2005, 1912(1): 72-81.
4	Gourab S, Mohapatra S S, Dey P P, et al. Merging process of U-turns at uncontrolled median openings under mixed traffic conditions[J]. Transport, 2018, 33(2): 370-379.
5	Sun F, Sun L, Ma D F, et al. Optimal location of the U-turn at a signalised intersection with double left-turn lanes[J]. IET Intelligent Transport Systems, 2019, 13(3): 531-540.
6	朱顺应, 蒋若曦, 王红, 等. 机动车交通冲突技术研究综述[J]. 中国公路学报, 2020, 33(2): 15-33.
	Zhu Shun-ying, Jiang Ruo-xi, Wang Hong, et al. Review of research on traffic conflict techniques[J]. China Journal of Highway and Transport, 2020, 33(2): 15-33.
7	郭伟伟, 曲昭伟, 王殿海. 交通冲突判别模型[J]. 吉林大学学报: 工学版, 2011, 41(1): 35-40.
	Guo Wei-wei, Qu Zhao-wei, Wang Dian-hai. Traffic conflict discrimination model[J]. Journal of Jilin University(Engineering and Technology Edition), 2011, 41(1): 35-40.
8	Khan T, Mohapatra S S, Dey P P. Estimation of conflicting traffic volume for uncontrolled median openings using spatiotemporal factor[J]. Proceedings of the Institution of Civil Engineers-Transport, 2022, 3: No.2100074.
9	马艳丽, 祁首铭, 吴昊天, 等. 基于PET算法的匝道合流区交通冲突识别模型[J]. 交通运输系统工程与信息, 2018, 18(2): 142-148.
	Ma Yan-li, Qi Shou-ming, Wu Hao-tian, et al. Traffic conflict identification model based on post encroachment time algorithm in ramp merging area[J]. Journal of Transportation Systems Engineering and Information Technology, 2018, 18(2): 142-148.
10	Lu G Q, Liu M M, Wang Y P, et al. Quantifying the severity of traffic conflict by assuming moving elements as rectangles at intersection[J]. Procedia-social and Behavioral Sciences, 2012, 43: 255-264.
11	Shahdah U E, Azam A. Safety and mobility effects of installing speed-humps within unconventional median U-turn intersections[J]. Ain Shams Engineering Journal, 2021, 12(2): 1451-1462.
12	刘骏, 郭唐仪, 刘英舜, 等. 城市信号交叉口掉头车道右置安全性能分析[J]. 交通信息与安全, 2015, 33(1): 90-94.
	Liu Jun, Guo Tang-yi, Liu Ying-shun, et al. Safety analysis of right-located U-turn lane at urban signalized intersection[J]. Journal of Transport Information and Safety, 2015, 33(1): 90-94.
13	Liu P, Qu X, Wang W, et al. Development of a VISSIM simulation model for U-turns at unsignalized intersections[J]. Journal of Transportation Engineering, 2012, 138(11): 1333-1339.
14	江晟, 王殿海, 曲昭伟, 等. 交叉口机动车运动轨迹特征提取与标定[J]. 西南交通大学学报, 2012, 47(5): 784-789.
	Jiang Sheng, Wang Dian-hai, Qu Zhao-wei, et al. Extraction and calibration of trajectory characteristics of vehicles at intersections[J]. Journal of Southwest Jiaotong University, 2012, 47(5): 784-789.
15	白乔文,曲昭伟,陈永恒,等. 非严格优先权下无左转专用相位直行车辆轨迹模型建立[J]. 吉林大学学报: 工学版, 2019, 49(3): 673-679.
	Bai Qiao-wen, Qu Zhao-wei, Chen Yong-heng, et al. Modeling on trajectories of through vehicles with an unprotected left⁃turn phase under non⁃strict priority[J]. Journal of Jilin University(Engineering and Technology Edition), 2019, 49(3): 673-679.
16	曲昭伟, 奇兴族, 陈永恒, 等. 逆向可变车道释放特性及其安全评价[J]. 交通运输系统工程与信息, 2018, 18(4): 76-82.
	Qu Zhao-wei, Qi Xing-zu, Chen Yong-heng, et al. Release characteristics and safety evaluation of intersection with reversing variable lane[J]. Journal of Transportation Systems Engineering and Information Technology, 2018, 18(4): 76-82.

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交叉口名称	区间长度/m	调查进口道	车道数/条	样本量/辆
S1	60	西进口	5	1 256
S2	90	东进口	7	1 026
S3	30	北进口	6	867
S4	无开口	南进口	4	538

组别	样本量	最大车头时距/ （s·辆^-1）	最小车头时距/（s·辆^-1）	平均车头时距/（s·辆^-1）	标准差	峰态系数	卡方检验
组别	样本量	最大车头时距/ （s·辆^-1）	最小车头时距/（s·辆^-1）	平均车头时距/（s·辆^-1）	标准差	峰态系数	卡方值	显著性
长区间掉头	337	11.12	1.12	3.53	2.27	2.54	66.730	0.000
交叉口内掉头	428	6.08	1.27	2.76	1.04	0.69	66.730	0.000

序号	移位指数函数R²	指数函数R²	二次函数R²
R²均值	0.79	0.83	0.88
1	0.65	0.83	0.92
2	0.73	0.89	0.90
3	0.67	0.72	0.83
4	0.77	0.79	0.91
5	0.80	0.84	0.86
6	0.75	0.86	0.84
?	?	?	?

分布函数类型	D	P值
移位指数分布	0.009 1	0.021 8
指数分布	0.003 8	0.039 4
二次分布	0.091 3	3.18×10^（-5）

掉头类型	严重程度	PET分布范围/s	样本量（比例/%）	碰撞风险
交叉口内掉头	潜在	2.1<PET	221（56）	低风险
	轻度	1.6<PET≤2.1	120（31）	中风险
	严重	PET≤1.6	52（13）	高风险
长区间掉头	潜在	2.0<PET	244（51）	低风险
	轻度	1.5<PET≤2.0	141（30）	中风险
	严重	PET≤1.5	89（19）	高风险

Traffic characteristics and safety analysis of long interval U-turn intersections

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