摘要
典型草原公路线形以长直线接大半径平曲线为主,平曲线段交通标志设置类型多样。为了对比分析平曲线段交通标志设置类型对驾驶人视觉特性的影响,选取14名驾驶人开展典型草原公路实驾试验,同步采集驾驶人在无标志及设置线形诱导标、线形诱导标+减速丘、示警桩等交通标志平曲线段的眼动数据,对比分析交通标志设置类型对驾驶人注视强度、视点转移特性的影响。数据结果表明:驾驶人在设置线形诱导标及线形诱导标+减速带的曲线段注视时长较短、注视频率较低,注视强度较小,注视转移分布范围较广且较均匀。在设置示警桩的曲线段,驾驶人的注视时长与注视频率则均较大,使其注视强度显著增加,驾驶人在不同区域之间转移的概率较大。在无标志平曲线段,驾驶人的注视点范围较窄,但因无交通标志的引导与警示,驾驶人注视强度大于设置线形诱导标段。
The typical prairie highway is mainly composed of long straight lines connected with large radius horizontal curves,and the traffic signs on the horizontal curves are of various kinds.In order to compare and analyze the influence of the types of traffic signs on the visual characteristics of drivers,14 drivers were selected to carry out a typical prairie road driving test,and the eye movement data was collected synchronously on the horizontal curve sections which set with traffic signs such as no signs,set linear guidance signs,linear guide signs&deceleration hills and warning piles.Typical fixation indicators were used to compute and analyze the fixation intensity and fixation transfer characteristics.The result shows that the driver's gaze time is shorter,the gaze rate is lower,the gaze intensity is lower,and the gaze transfer distribution range is wide and uniform when settings are the linear guide mark and the linear guide mark+speed bump.In the curve section where the warning piles are set,the driver's gaze duration and gaze rate are both larger,the gaze intensity value is larger,and the driver's probability of transferring between different areas is greater.Where there was no traffic sign on the horizontal curves,the driver's fixation point range is narrow,but the fixation intensity is greater.
作者
吕贞
王海晓
丁旭
LÜ Zhen;WANG Hai-xiao;DING Xu(College of Energy and Traffic Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China)
出处
《科学技术与工程》
北大核心
2022年第8期3396-3404,共9页
Science Technology and Engineering
基金
内蒙古自然科学基金(2019MS05005)
内蒙古自治区高等学校科学技术研究项目(NJZY21470)。
关键词
视觉特性
交通标志
注视强度
注视转移概率
草原公路曲线段
visual characteristics
traffic signs
fixation intensity
fixation transition probability
horizontal curves of prairie highway
