Correlation Studies Of Driver EEG Characteristics And Two-lane Highway Line-type In Mountainous Area

Two-lane highways are popular in China’s road transport system, especially in mountai nous areas with rugged terrain. Mountainous two-lane highways has been the hardest-hit are as of traffic accidents, some sections with steep slopes, sharp turns, narrow roads, and poor v isibility problems frequently lead to grave traffic accidents.Traffic accident is the result of disharmony of human, vehicle, road and environment. Traditional road line design theory is based on vehicle dynamics, and doesn’t considered human factors. New road design theory takes traffic demands and physical-and psychological-reaction characteristics of the road users as the theoretical basis, using the concept of movement to design each element, striving to be coordination. This study aims to explore the relationship between diver’s EEG and the highway line-types.Considering the characteristics of the EEG and road alignment of transportation security, the circular curve radius of500m、550m、600m、650m、700m and the uphill slope of3%,4%,5%,6%,7%were chosen as ten different simulation two-lane of mountain areas. Five test drivers travel on these simulation roads with the speed of40km/h. The EEG (β-band absolute power value) is selected as the physiological indicators for the study of mountain two-lane highway alignment.Through the regression analysis of the EEG β band changes in value of the absolute power and curve radius and slope, find the linear relationship of the two linear elements, hoping to make a contribution to future research on brain electrical signals and road alignment index research.The β band absolute power value will change accordingly when the road alignment changes throuh the regression analysis. The β-band absolute power value change value is negatively correlated with circular curve radius, while it is possitive correlated with the uphill slope value.