Research On The Role Of Driving Fatigue Regulation Based On The Change Of Tunnel Lighting Environment

Due to the semi-closed tubular structure of highway tunnels,there are greater driving safety risks,and traffic accidents caused by driver fatigue driving are common every year,and how to effectively adjust driving fatigue is of great practical significance for reducing traffic safety accidents.In this research,the Jinjiazhuang tunnel is used as the research object to carry out real vehicle experiments,explore the mechanism of the physiological changes of the driver caused by the lighting environment,reveal the change law of the pupil under different lighting environment conditions,and study the regulating effect of the change of the lighting environment on driving fatigue.Eight different tunnel lighting environment scenarios were used as research objects to carry out simulated driving experiments to explore the influence of different color temperature lighting environments on drivers,and analyze the relationship between color temperature changes in lighting environment and driving fatigue regulation.The specific research content is as follows:(1)By combing the literature,a large number of references at home and abroad on tunnel lighting,the influence of tunnel environment on drivers,the physiological and psychological reactions of drivers and driving fatigue regulation were studied and analyzed,and the intrinsic relationship between tunnel lighting and driving fatigue was explored.(2)By selecting the long spiral tunnel for real vehicle experiments,the eye movement index parameters of the driver driving in the tunnel were extracted,and the change law of the driver’s eye movement characteristics in the tunnel was studied.The time prediction model predicted the eye movement characteristics of drivers driving in tunnels without change in the lighting environment,and analyzed the changes of eye movement characteristics of drivers driving in different tunnel lighting environments.(3)Based on the simulated driving platform,the UC-win/Road software was used to establish eight lighting colour temperature scenarios of 2 500 K,3 500 K,4 500 K,5 500 K,6 500 K,7 500 K,8 500 K and 9 500 K.The simulated driving experiments were conducted to process and analyse the data collected from the simulated driving experiments and to investigate the relationship between different tunnel environments and changes in the level of driving fatigue.To investigate the effect of different lighting colour temperatures on the regulation of driving fatigue.The results show that the driver driving in the road tunnel,lighting environment colour temperature changes on the two lighting environment changes in the section of driving fatigue have 188.18% and 113.38% adjustment effect respectively.By analysing the driver’s driving simulation in eight different lighting colour temperature scenarios,it was found that the effect of high colour temperature lighting environment on the regulation of driving fatigue was more significant,with the regulation effect of9 500 K lighting colour temperature on driving fatigue having reached 227.97% and185.95% respectively.The greater the difference in lighting colour temperature between adjacent roads,the better the effect on fatigue.After the driver has experienced a change in the colour temperature of the lighting environment,the overall effect of the second time experiencing a change in the colour temperature of the lighting environment on the regulation of driving fatigue becomes smaller.