To analyze effects of a hypoxic environment on driving performance,a driving simulator experiment is conducted in this study.Both drivers'behavioral data and physiological data are collected by simulating a plateau scenario(3 900 m).The driver behavior characteristics in the plateau scenario and plain scenario are analyzed using a radar map,a numerical ranking map,and one-way ANOVA.The probability density fitting distribution differences between the two scenarios for road offset,steering velocity,lateral acceleration,and speed are quantified using the Jensen-Shannon divergence.The difference method is employed to identify time windows when driving perfor-mance decreased in the plateau area.The validity of the simulated hypoxic driving environment is verified by com-paring the heart rate trend of the pilot test data in the plateau.The results indicated that:①the standard deviation of road offset,lateral acceleration,steering velocity,and speed in the plateau scenario increase by 0.094 3 m,0.119 0 m/s2,0.000 9°/s,and 0.651 3 km/h,respectively,compared to the plain scenario;②the fitted probability density distribution differences between the plateau and plain scenarios for road offset,lateral acceleration,steering veloci-ty,and speed are 0.23,0.11,0.01,and 0.02,respectively(thus,it could be inferred that vehicle lateral movement is more affected by the high-altitude factor);③driving performance decrease significantly after 6 minutes upon enter-ing the plateau area at 3900 m altitude.
维普
万方数据