摘要
为研究驾驶人在互通立交合流区域的视觉特性及其影响因素,开展了47位被试的实车驾驶试验,利用k-means动态聚类算法划分了驾驶人经过立交合流区时的视窗区域,并选择注视时间、扫视幅度和注视目标占比等作为评价驾驶人视觉特性的指标,分析加速车道形式对驾驶人视觉特性的影响。结果表明:驾驶人的注视视窗主要集中在6个区域。在加速车道段,驾驶人对前方道路近处的注视需求最高,加速车道长度不足时,会增加驾驶人对左侧车辆的关注,其水平扫视幅度更为广泛;在直接式加速车道时,驾驶人对前方道路及车辆目标的注视需求较高;在平行式加速车道时更关注道路左侧和设施信息,即护栏和交通标志信息。
To investigate the visual characteristics and their influencing factors of drivers in interchange merging areas,experiments on a real vehicle driving were conducted with 47 participants.The visual window areas of drivers passing through interchange merg⁃ing areas were identified using the k-means dynamic clustering algorithm.Indicators such as fixation time,saccade amplitude,and fixation target ratio were chosen to evaluate drivers’visual characteristics.The impact of the number of lanes on ramps and the form of acceleration lanes on these characteristics were analyzed.The results show that drivers’fixation windows are primarily concen⁃trated in six areas.During the acceleration lane segment,drivers have the highest need to focus on the near part of the road ahead.An increased focus on vehicles to the left exists if the acceleration lane length is insufficient,which results in a wider horizontal sac⁃cade amplitude.On direct acceleration lanes,drivers show a higher need to focus on the road ahead and vehicle targets.Conversely,on parallel acceleration lanes,drivers paid more attention to the left side of the road and information such as guardrails and traffic signs.
作者
李涛
王思棋
朱兴林
于志刚
徐进
LI Tao;WANG Siqi;ZHU Xinglin;YU Zhigang;XU Jin(School of Transportation and Logistics,Chongqing Jiaotong University,Chongqing 400074,China;BYD Automobile Co.,Ltd.,Changsha 410211,China;College of Transportation and Logistics Engineering,Xinjiang Agricultural University,Urumqi 830052,China;School of Automotive Engineering,Chengdu Vocational College of Industrial Technology,Chengdu 610218,China)
出处
《中国科技论文》
CAS
2024年第10期1125-1133,共9页
China Sciencepaper
基金
国家自然科学基金资助项目(52172340)
重庆市高校创新研究群体项目(CXQT21022)。
关键词
交通工程
互通立交
立交合流区
驾驶人视觉
视觉搜索特性
驾驶行为
traffic engineering
interchange
interchange merging area
driver vision
visual search characteristics
driving behavior
