汽车工程 ›› 2022, Vol. 44 ›› Issue (6): 821-830.doi: 10.19562/j.chinasae.qcgc.2022.06.003

所属专题: 智能网联汽车技术专题-感知&HMI&测评2022年

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基于自然驾驶数据的城市交叉口纵向驾驶特征分析

袁田1,赵轩1,刘瑞1(),余强1,朱西产2,王姝1   

  1. 1.长安大学汽车学院,西安  710064
    2.同济大学汽车学院,上海  201804
  • 收稿日期:2021-12-15 修回日期:2022-01-17 出版日期:2022-06-25 发布日期:2022-06-28
  • 通讯作者: 刘瑞 E-mail:liuruiaza@163.com
  • 基金资助:
    国家重点研发计划(2021YFB2501201);国家自然科学基金(52002034)

An Analysis on Longitudinal Driving Characteristics in Urban Intersection Based on Natural Driving Data

Tian Yuan1,Xuan Zhao1,Rui Liu1(),Qiang Yu1,Xichan Zhu2,Shu Wang1   

  1. 1.School of Automobile,Chang’an University,Xi’an  710064
    2.School of Automotive Studies,Tongji University,Shanghai  201804
  • Received:2021-12-15 Revised:2022-01-17 Online:2022-06-25 Published:2022-06-28
  • Contact: Rui Liu E-mail:liuruiaza@163.com

摘要:

为满足驾驶辅助系统在城市交叉口对类人驾驶能力的更高需求,本文中研究了实际交通中的驾驶人在该区域的纵向驾驶行为特征。从自然驾驶数据中提取了778条驾驶人接近城市交叉口的样本数据,应用YOLOv4识别了交通场景中的各类道路使用者,采用方差分析研究了反应特性在不同运动类型和交通密度中的差异,建立分层回归模型分析了制动特性与运动状态、运动类型和道路使用者的关系。结果表明:高密度交通显著降低接近速度;与右转驾驶人相比,停车驾驶人的反应距离更长;当接近速度较高或反应距离较短时,会在更短的时间内以更高的减速度和制动强度接近交叉口,且提前4.46 s开始制动;不同道路使用者对制动特性产生了不同影响,停车驾驶人主要关注同向行驶的他车,右转驾驶人主要关注行人和骑车人。

关键词: 城市交叉口, 驾驶行为, 方差分析, 分层回归, 自然驾驶数据, 类人驾驶

Abstract:

In order to meet the higher requirements of driver assistance systems for human-like driving ability in urban intersection, the longitudinal driving characteristics of drivers in real traffic in that area are investigated in this paper. 778 sample data of drivers approaching urban intersections are extracted from natural driving data, and YOLOv4 is applied to identifying various types of road users in traffic scene. ANOVA is used to investigate the differences in reaction characteristics across motion types and traffic densities, and hierarchical regression models are established to analyze the relationships between braking characteristics and motion state, motion type and road users. The results show that high-density traffic significantly reduces approaching speed. Compared with right-turning drivers, stopping drivers have longer reaction distance and may approach intersection with higher acceleration and braking intensity in a shorter time with braking started 4.46s earlier when approach speed is higher or reaction distance is shorter. Different road users have different effects on braking characteristics: stopping drivers primarily pay attentions to the vehicles traveling in the same direction, and right-turning drivers are mainly concerned with pedestrians and cyclists.

Key words: urban intersections, driving behavior, ANOVA, hierarchical regression, natural driving data, human-like driving