摘要
为了对"路怒症"进行分级预警,提出了一种基于驾驶行为特征的愤怒强度判别阈值求解方法。通过在交通繁忙路段开展限时实车试验获得不同愤怒强度下的驾驶行为数据。基于方差分析选用方向盘转动角速度(SWRAR)、加速踏板踩踏速度(SGP)、横向加速度(LA)作为驾驶愤怒判别指标。运用接受者操作特征(ROC)曲线分析方法求得4种愤怒强度的最佳阈值范围分别为:正常状态0≤SWRAR<1.8863,0≤SGP<0.3974,0≤LA<0.1362;低强度愤怒1.8863≤SWRAR<2.3241,0.3974≤SGP<0.5054,0.1362≤LA<0.1559;中强度愤怒2.3241≤SWRAR<3.0835,0.5054≤SGP<0.6142,0.1559≤LA<0.1754;高强度愤怒SWRAR≥3.0835,SGP≥0.6142,LA≥0.1754。验证结果表明,此驾驶行为特征阈值的准确率可达79.42%。本文研究结果可为驾驶愤怒分级预警系统的开发提供理论支撑。
In order to make effective graded warning for road rage,an optimal threshold determination method for discriminating driving anger intensity based on driving behavior features is proposed in this study.Different driving behavior data were acquired in driving states with different anger intensity by conducting timed experiments in busy traffic sections.The steering wheel rotation angel rate(SWRAR),speed of gas pedaling(SGP),and lateral acceleration(LA)were selected as three effective driving behavior features for discriminating different anger intensity by analysis of variance.A method of receiver operating characteristic(ROC)curve analysis was introduced to determine the optimal discrimination thresholds of SWRAR,SGP and LA.For normal state the ranges of the thresholds are 0≤SWRAR<1.8863,0≤SGP<0.3974,0≤LA<0.1362;for low anger state the ranges are 1.8863≤SWRAR<2.3241,0.3974≤SGP<0.5054,0.1362≤LA<0.1559;for moderate anger state the ranges are 2.3241≤SWRAR<3.0835,0.5054≤SGP<0.6142,0.1559≤LA<0.1754;and for high anger state the ranges are SWRAR≥3.0835,SGP≥0.6142,LA≥0.1754.The verification performances show that the accuracy of the optimal thresholds for discriminating different anger intensity can reach 79.42%.The results can provide theoretical foundation for developing multilevel warning systems for driving anger based on the optimal discrimination thresholds.
作者
万平
吴超仲
马晓凤
WAN Ping;WU Chao-zhong;MA Xiao-feng(School of Transportation and Logistics,East China Jiaotong University,Nanchang 330013,China;Intelligent Transport Systems Research Center,Wuhan University of Technology,Wuhan 430063,China)
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2020年第1期121-131,共11页
Journal of Jilin University:Engineering and Technology Edition
基金
国家自然科学基金项目(51775396,U1764262)
江西省社会科学规划青年博士基金项目(17BJ42)
江西省教育厅科学技术研究项目(GJJ180359).
关键词
道路工程
驾驶愤怒阈值
ROC曲线
驾驶行为
交通安全
road engineering
driving anger discrimination
receiver operating characteristic(ROC)curve
driving behavior
traffic safety
作者简介
万平(1984-),男,博士研究生.研究方向:驾驶行为与安全辅助驾驶.E-mail:pingw04@163.com;通信作者:马晓凤(1981-),女,副研究员,博士.研究方向:驾驶行为与智能交通.E-mail:maxiaofeng@whut.edu.cn
