基于驾驶员脑电信号的平原区四车道公路禁令和警告标志优化设置  

Optimization on Prohibition and Warning Signs on Four-lane Highway in Plain Terrain Based on Driver’s EEG Signal

作　　者：任董普 刘怡美 索传政 蓝清 史磊 REN Dong-pu;LIU Yi-mei;SUO Chuan-zheng;LAN Qing;SHI Lei(Hebei University of Water Resources and Electric Engineering,Cangzhou,Hebei 061001,China;Hebei Provincial College Transportation Infrastructure Research and Development Center for Digital and Intelligent Technology Application,Cangzhou,Hebei 061001,China;Preparatory Office for Beijing-Xiong’an Section of Hebei Provincial Expressway,Baoding,Hebei 071700,China;Beijing Zhongjiao Ruida Technology C.,Ltd.,Beijing 100070,China;Hebei Expressway Group Limited,Shijiazhuang,Hebei 050035,China)

机构地区：[1]河北水利电力学院,河北沧州061001 [2]河北省高校交通基础设施数智化应用技术研发中心,河北沧州061001 [3]河北省高速公路京雄筹建处,河北保定071700 [4]北京中交睿达科技有限公司,北京100070 [5]河北高速公路集团有限公司,河北石家庄050035

出　　处：《公路交通科技》2024年第2期182-190,共9页Journal of Highway and Transportation Research and Development

基　　金：河北省“三三三人才工程”项目(A202105007);河北省教育厅科学研究项目资助(ZC2022017);河北省交通厅科技项目(JX202024);沧州市重点研发计划指导项目(213101013);河间市交通运输局科技项目(2020130901000018)。

摘　　要：为探究平原区4车道公路各类交通禁令和警告标志的设置效果,通过现场试验采集驾驶员脑电信号数据,对脑电信号电位、时频、地形图、功率及其衍生指标等进行了综合分析,研究驾驶员在观察不同类型交通禁令和警告标志时的脑电特征,实现了对交通标志设置效果的客观评价。结果表明:在试验路段,驾驶员观察交通禁令和警告标志时较静息状态的脑部额叶区电位变化和脑电功率变化均更加显著,脑区激活程度更高,该路段交通禁令和警告标志的设置总体上能够引起驾驶员的警觉;试验路段中十字交叉、限制质量、环形交叉、T形交叉、限速、解除限速6类交通禁令和警告标志在脑电β波相对功率和θ/β功率指标中均有显著性差异,其中限速和解除限速类交通标志β波相对功率较高,θ/β功率指标较低,该类交通标志设置效果较好,能够引起驾驶员较高的注意;限制质量、十字交叉、T形交叉类交通标志β波相对功率较低,θ/β功率指标较高,该类交通标志设置效果较差,不能引起驾驶员足够的注意,其原因可能与驾驶员驾驶习惯和道路环境等因素有关,在对该路段交通禁令和警告标志进行优化时,应重点考虑限制质量、十字交叉、T形交叉这几类标志。研究结果可为同类公路交通禁令和警告标志的优化设置提供参考和借鉴。In order to explore the setting effect of various highway traffic prohibition signs and warning signs on four-lane highways in plain terrain,the EEG data of drivers are collected through field experiments,and the EEG potential,time-frequency,topographic map,power and its derived indicators are comprehensively analyzed.The EEG characteristics of drivers when observing different types of traffic prohibition and warning signs are studied to achieve objective evaluation of the effect of setting traffic signs.The result shows that(1)The changes of frontal lobe potential and EEG power are more significant than those in the resting state when drivers observe traffic prohibition and warning signs,and the activation level of the brain region is higher.The setting of traffic prohibition and warning signs in this section can alert drivers in general.(2)There are significant differences in the EEG β-wave relative power and θ/β power indicator in the 6 types of traffic prohibition and warning signs,including crossroads,weight limit,roundabout,T-Junction,speed limit and removal speed limit,and the EEG β-wave relative power is higher and θ/β power indicator is lower for speed limit and removal speed limit signs.These types of traffic signs have better setting effects and can attract the drivers’higher attention.(3)The EEG β-wave relative power is lower and θ/β power indicator is higher for weight limit,crossroads and T-Junction signs,and these types of traffic signs have worse setting effects and cannot attract the drivers’enough attention.The reason may be related to factors such as drivers’driving habits and road environment.The weight limit,crossroads and T-Junction signs should be focused on when optimizing the traffic prohibition and warning signs on this section of road.The study result can provide reference for the optimization of traffic prohibition and warning signs on similar highways.

关 键 词：交通工程 优化设置 现场试验 脑电信号 禁令和警告标志 脑电功率 平原区公路 

分 类 号：U491.52[交通运输工程—交通运输规划与管理]