Abstract

The pupil diameter is one of the most important assessing indicators for the mental state of drivers. On the other hand, it is still a topic to quantitatively assess the effect of vehicle speeds on pupil diameters of drivers. Therefore, this study recorded pupil diameters under different vehicle speeds of 40, 60, and 80 km/h in the driving simulator experiment. Furthermore, this paper analyzed pupil diameters on the straight and curve road sections, and the difference of pupil diameters between left and right eyes. The results indicate that there is a positive association between the pupil diameter and the vehicle speed, and there is a difference for pupil diameters in the straight and curve driving. In addition, the difference of pupil diameters between left and right eyes is higher in the straight section than that in the curve section.

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