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Citation |
Han L, Zhu S, Gao M, Li H, Liu X. China Saf. Sci. J. 2020; 30(8): 122-128. |
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Copyright |
(Copyright © 2020, China Occupational Safety and Health Association, Publisher Gai Xue bao) |
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DOI |
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PMID |
unavailable |
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Abstract |
In order to study drivers' attention distribution while driving on bends of grassland highways with different guidance facilities information volume, five virtual scenes of bends with diverse levels of information volume (Q0, Q1, Q2, Q3, Q4) were established, and driving simulation experiments were carried out. Then, drivers' visual fields were divided, and their gaze entropy changes under different volume conditions were analyzed. Finally, Markov chain was used to calculate one-step transfer probability and stable distribution probability of gaze in different regions. The results show that information volume change of guidance facilities on grassland highway bends has a significant impact on drivers' gaze entropy which would be the largest under Q2 condition(10-20 bits/ km). They need to repeatedly gaze at target to obtain sufficient and effective driving information, and more than 90% of probability is concentrated in left and far areas of roads, of which the latter one is an significant zone for drivers to ensure normal driving. © 2020 China Safety Science Journal. All rights reserved. Language: zh |