基于SEM的双车道公路超车行为安全评价

发布时间：2018-06-18 01:38

本文选题：安全管理工程 + 超车行为　；参考：《安全与环境学报》2017年04期

【摘要】：为提高驾驶人在双车道公路上超车的安全性,基于tau理论适应性分析,提出超车过程中驾驶人不仅根据tau线索估计避碰时间,也利用距离、速度、加速度等判断超车是否安全的试验假设。招募12名受试者,应用驾驶模拟系统试验平台,依据试验假设采集12个与超车行为有关的驾驶行为数据,对其进行无量纲化处理,并利用Bootstrap法对数据进行扩增。结合驾驶行为问卷得分,利用AMOS软件,建立超车行为安全评价的结构方程模型。通过对初始假设模型进行多次修正与评价,得到影响超车行为安全的3个驾驶行为参数。结果表明,超车车辆在超车并道后的速度、与前导车之间的避碰时间及与对向车辆之间的避碰时间这3个驾驶行为参数可作为超车行为安全评价的有效指标。
[Abstract]:In order to improve the safety of overtaking on two-lane highway, based on the adaptability analysis of tau theory, it is proposed that the driver not only estimates collision avoidance time according to tau clues, but also uses distance and speed. Acceleration and other test assumptions to determine whether overtaking is safe or not. Twelve subjects were recruited, and 12 driving behavior data related to overtaking behavior were collected according to the test hypothesis on a driving simulation system test platform. The data were processed in a dimensionless manner, and the data were amplified by bootstrap method. Based on the score of driving behavior questionnaire, the structural equation model of overtaking behavior safety evaluation was established by using Amos software. By modifying and evaluating the initial hypothesis model, three driving behavior parameters which affect the safety of overtaking behavior are obtained. The results show that the driving behavior parameters, such as the speed of overtaking, the collision avoidance time between the overtaking vehicle and the leading vehicle, and the collision avoidance time between the two vehicles, can be used as an effective index to evaluate the safety of overtaking behavior.
【作者单位】：昆明理工大学交通工程学院;
【基金】：国家自然科学基金项目(71361016) 四川省汽车测控与安全重点实验室开放课题(szjj2014-066)
【分类号】：U491.25

【相似文献】