非严格优先权下无左转专用相位直行车辆轨迹模型建立

doi:10.13229/j.cnki.jdxbgxb20180110

摘要/Abstract

摘要：

首先，通过大量实测数据对非严格优先权下有、无左转专用相位直行车辆轨迹在交叉口内3个断面的分布特性进行分析。然后，根据实际交通运行状况提出驾驶员避让对向左转车流的决策过程，并考虑交叉口几何尺寸、直行车辆进入交叉口时的初始速度、直行车辆与对向左转车辆横向安全距离等因素对轨迹的约束作用，建立了无左转专用相位下直行车辆的轨迹偏移模型。最后，通过实际数据验证了模型的有效性。研究成果有助于深入理解非严格优先权下无左转专用相位的直行车流运行机理，为交通流微观仿真提供理论基础。

关键词: 交通运输系统工程, 轨迹模型, 无左转专用相位, 直行车辆, 交通仿真

Abstract:

A field survey is conducted to explore the distribution characteristics of through vehicles' trajectories with and without protected left?turn phase at three cross sections under non?strict priority. A driver′s decision process is presented to avoid opposing left?turning vehicles with respect to operational performance. Then the trajectory model of through vehicle with an unprotected left?turn phase is proposed considering three constraints: intersection geometry, velocity of a through vehicle when entering an intersection, and the minimum safe distance between a through vehicle and an opposing left?turning vehicle. At last, the model is validated by actually measured data. The study can provide a better understanding of crossing through maneuver with an unprotected left?turn phase under non?strict priority, and offer the theoretical basis for microscopic traffic simulation.

Key words: engineering of communications and transportation system, trajectory model, unprotected left?turn phase, through vehicle, traffic simulation

中图分类号:

U491.1

白乔文,曲昭伟,陈永恒,熊帅,陶楚青. 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.

Qiao⁃wen BAI,Zhao⁃wei QU,Yong⁃heng CHEN,Shuai XIONG,Chu⁃qing TAO. 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.

图/表 9

表1

图1

表2

各调查地点不同断面的概率密度函数参数"

断面位置		模型参数
断面位置		$α$	$β$	$γ$
解放大路?同志街南	进口道	15.05	2.11	-1.33
	交叉口内	8.69	7.95	-1.13
	出口道	4.22	0.96	-0.28
解放大路?同志街北	进口道	16.37	1.76	-0.99
	交叉口内	8.46	1.52	-0.80
	出口道	5.61	1.37	-0.55
皓月大路?和平大街	进口道	13.93	2.60	-1.47
	交叉口内	1.37E+8	4.52E+7	-4.52E+7
	出口道	6.43	1.83	-0.77
自由大路?同志街	进口道	45.82	6.90	-5.75
	交叉口内	1.05E+8	4.12E+7	-4.12E+7
	出口道	7.91	2.17	-1.11

表2

图2

图3

图4

图5

图6

图7

参考文献 17

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交叉口	左转控制	调查进口道	车道数	车道宽度/m	样本量
皓月大路?和平大街	无专用相位	东进口	2	3.25	1147
自由大路?同志街	无专用相位	北进口	2	3.00	1066
解放大路?同志街	专用相位	南进口	3	3.25	976
解放大路?同志街	专用相位	北进口	3	3.25	994