Study On The Drivers’ Eyes Movement Characteristic At The Entrance And Exit Of Undersea Tunnels Under The Coupling Effect Of Illumination And Longitudinal Slope

Undersea tunnel is a special form of tunnels.Because of the special structure of undersea tunnel,its driving environment is both similar and special to common highway tunnels.Due to the particularity of the structure of the undersea tunnel,once a traffic accident occurs in the undersea tunnel,it will be difficult to escape,evacuate and rescue,which will easily cause the traffic paralysis of the entire undersea tunnel,and then cause regional traffic congestion on both sides of the strait.As is known to all,human factors play a vital role in traffic accidents,and vision is one of the important ways for drivers to obtain traffic information.Therefore,in view of the entrance and exit section of the undersea tunnel with relatively complex traffic environment,it is of great significance to study the variation rule of eye movement by selecting the characteristic parameters of eye movement,and to optimize and improve the relevant parameters of the undersea tunnel design.The study summarized the tunnel environment and intensity of illumination,longitudinal slope parameters,such as safety related research status at home and abroad,from the driving environment,traffic participants and managers in the face of the tunnel traffic environment are analyzed,respectively discuss the tunnel special space structure,illumination environment impact on the driver’s body and mind,and the characteristics of the traffic control in the tunnel.This study in Qingdao jiaozhou bay undersea tunnel as the research object,the reference related design specifications,in full consideration on the basis of the particularity of the structure of the tunnel,the tunnel entrance length is defined,and through the real vehicle experiment collected 26 driver’s in a free driving condition through the tunnel entrance section,eyelid closure,blink frequency,gaze duration,driving speed and eye movement characteristics,such as illumination value,filtered through the Origin,SPSS software for data processing,and data of a multi-factor analysis of variance,This study explores the difference and correlation between the driver’s eye movement data and driving speed under the action of different illumination and longitudinal slope coupling,and makes a fitting curve and a mathematical model.Based on the driver’s eye movement characteristics and driving speed,this study proposes optimization Suggestions for the traffic safety of the undersea tunnel from the aspects of illumination and longitudinal slope.