Research on saccade behavior of drivers in extra-long urban underwater tunnel curves

doi:10.16265/j.cnki.issn1003-3033.2019.07.017

Abstract

Abstract: In order to explore the changing characteristics of driver's saccade behavior when driving in the extra-longurban underwater tunnel curves, the saccade angle was taken as the main research object and the actual vehicle test was carried out in different curves and straight sections of East Lake tunnel in Wuhan. Saccade behavior was analyzed by considering the variation of the fixation distribution, horizontal viewing angle and visual distance. In the characteristic analysis, the variation characteristics of saccade angle in different curves were studied with the mean absolute deviation as the evaluation index. The results show that the main saccade angle of drivers is small when driving in different alignments of extra-long underwater tunnel, that the mean absolute deviations of radius 400, 680, 1 000 m and straight section are 2.876, 4.545, 5.010 and 6.324 respectively, and that with the decrease of the curvature of the curve, the median, mean, and range of change of the driver's saccade angle become larger, the driver's saccade range is wider, the psychological pressure is smaller, and driving becomes safer.

Key words: extra-long urban under water tunnel, curved road, visual characteristic, saccade angle, driver

CLC Number:

X913.4

JIAO Fangtong, DU Zhigang, WANG Shoushuo, CHEN Yun, MA Zhaoyou. Research on saccade behavior of drivers in extra-long urban underwater tunnel curves[J]. China Safety Science Journal, 2019, 29(7): 104-109.

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