基于视觉心理的山区公路曲线段视觉诱导与安全评价

Visual Induced and Safety Evaluation at Curves on Two-lane Mountainous Highway Based on Visual Psychology

基于视觉边缘理论,从驾驶员角度出发,采用在曲线段及曲线前直线段铺设干预标线的方法,对驾驶员进行视觉干预,以期改变车辆运行速度和行驶轨迹,进而起到预防交通事故发生,提高行车安全性的作用。分析了边缘率对车速、行驶轨迹的干预机理,选择特殊形式道路标线作为视觉干预的载体,对不同参数标线进行了驾驶模拟试验,分析得到最佳标线形式及参数。在此基础上,论文以温州某山区公路为背景,选取驾驶员注视点、心率、车速、行驶轨迹、横摆角速度等指标,进行视觉干预行车试验,并从以下几个方面对视觉干预效果进行对比分析:干预前后驾驶员注视点及心率变化;干预前后车辆入弯前减速起始位置变化;干预前后车速变化;干预前后车辆行驶轨迹变化。

Based on the theory of visual edge,this paper from the driver’s point use intervention marking on the curves and the straight segment before the curves,to intervene driver’s visual information without affecting the traffic safety,so as to change the velocity and running track,Thus to prevent traffic accidents and improve traffic safety.This paper analyzed the mechanism of edge rate to intervene velocity and running track,chose special form of road marking as visual intervention carrier,did driving simulation experiments using different marking parameters.Through comprehensive analysis,got the optimum marking form and parameters.On the basis ofsimulationresult,this paper use information of a mountainous road in Wenzhou,chose the driver’s gaze point,heart rate,velocity,running track,yaw rate and so onto do road test,and from the following aspects to analyzeeffect of visual intervention:the change of driver's gaze point and heart rate before and after intervention;the change of vehicle deceleration position before the curves;the change of velocity;the change of running track.