为量化高速公路路侧景观色彩与驾驶人脑电 α/β 值之间的关系，在吉珲高速公路进行道路试验采集所需数据． 基于双指数函数建立景观色彩值与脑电 α/β 值的关系模
型． 考虑到驾驶时间对驾驶人脑电 α/β 值的累积影响，基于三次高斯函数建立驾驶时间与脑电 α/β 值的关系模型． 最后采用联合建模的方式建立驾驶时间、景观色彩值对脑电α/β 值的关系模型． 模型分析结果表明:路侧景观色彩均值与驾驶员脑电 α/β 值呈负相关，随着色彩值的增大即景观色彩越加明亮、鲜艳，驾驶员的 α/β 值越趋近于 1，即达到放松与警惕之间的平衡状态;驾驶员脑电的 α/β 值随着驾驶时间呈现波动，驾驶员的主观意识强迫自己要时刻处于警醒状态，驾驶员自身会存在精神放松与警醒的博弈过程． 研究结果可为考虑驾驶疲劳的高速公路景观色彩设计提供理论基础．

In order to quantify the relationship between the roadside landscape color of freeways and the α/β value of the driver's EEG signal,real vehicle experiments were conducted in Jilin-Hunchun freeway to collect the data.Based on the double exponential function,a relationship model between the landscape color and the α/β value of the driver's EEG signal was constructed.Then,by considering the cumulative impact of the driving time on the α/ β value,their relationship model is constructed based on the cubic Gaussian function.Finally,a model describing the relationships of the driving time and the landscape color to the α/β value was constructed by means of the joint modeling method.Model analysis results show that the landscape color is negatively correlated with the α/β value,i. e.with the increase in the brightness of the landscape color,the α/β value approaches to 1,which indicates a balance between the relaxed state and the alert state,and that there is a fluctuating relationship between the driving time and the α/β value,specifically,when a driver forces himself into an alert state,there is a game between fall- ing into fatigue and resisting fatigue.The findings can provide a theoretical basis for the landscape color design con- sidering the driving fatigue.