基于瞳孔面积变动的公路隧道明暗适应时间

doi:10.3969/j.issn.1002-0268.2013.05.016

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摘要 The sharp variation of illumination at the entrance and exit of highway tunnels causes difficulty in the visual adaptation of drivers and may even lead to accidents. Therefore, ascertaining the light and dark adaption time is a basic task to promote the safety of tunnel transportation. Took 26 typical tunnels as experimental settings and used the IViewX HED Laptop eye tracker system, the light and dark adaption of drivers in highway tunnels had been experimentally investigated. The relation between pupil area and its variation velocity was presented based on many experimental data and the ratio k of the variation velocity to its critical variation velocity was used to evaluate the visual load in highway tunnels and thus ascertained the visual adaption time, whereby the relation between tunnel length and visual adaptation time was thus obtained. Experimental results indicated that the dark and light adaption time of tunnels was less than 23 s and 13 s for medium and long length tunnels, respectively.

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	杜志刚
	黄发明
	严新平
	潘晓东

关键词 ： traffic engineering, tunnel safety, light and dark adaptation, pupil area, critical velocity

Abstract：The sharp variation of illumination at the entrance and exit of highway tunnels causes difficulty in the visual adaptation of drivers and may even lead to accidents. Therefore, ascertaining the light and dark adaption time is a basic task to promote the safety of tunnel transportation. Took 26 typical tunnels as experimental settings and used the IViewX HED Laptop eye tracker system, the light and dark adaption of drivers in highway tunnels had been experimentally investigated. The relation between pupil area and its variation velocity was presented based on many experimental data and the ratio k of the variation velocity to its critical variation velocity was used to evaluate the visual load in highway tunnels and thus ascertained the visual adaption time, whereby the relation between tunnel length and visual adaptation time was thus obtained. Experimental results indicated that the dark and light adaption time of tunnels was less than 23 s and 13 s for medium and long length tunnels, respectively.

Key words： traffic engineering tunnel safety light and dark adaptation pupil area critical velocity

收稿日期: 2013-07-22

基金资助:Supported by the National Natural Science Foundation of China (No.51008241);and the China Postdoctoral Science Foundation (No.2012M511290)

通讯作者: DU Zhi-gang, zhig-du7@163.com E-mail: zhig-du7@163.com

引用本文:

杜志刚, 黄发明, 严新平, 潘晓东. 基于瞳孔面积变动的公路隧道明暗适应时间[J]. Journal of Highway and Transportation Research and Development, 2014, 8(1): 73-77.
DU Zhi-gang, HUANG Fa-ming, YAN Xin-ping, PAN Xiao-dong. Light and Dark Adaption Times Based on Pupil Area Variation at Entrance and Exit Areas of Highway Tunnels. Journal of Highway and Transportation Research and Development, 2014, 8(1): 73-77.

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