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城市隧道驾驶员视力角特征及应用

Keywords: 交通工程,视力角,行车试验,注视点,城市隧道,交通标志

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Abstract:

利用利用眼动仪系统,以城市道路隧道路段驾驶员注视点变动为研究对象,对4名驾驶员共进行16次有效行车试验,得出注视点分布一般特征。并根据心理学研究中提出的视力角概念,用成功扫视幅度中值来量度视力角,建立基于视力角特征的城市隧道标志视认模型城市隧道行车过程中,当目标物体在注视点分布椭圆边界的视力角范围之内,较容易视认,超过此范围,则难以视认。再利用该模型,对隧道进口交通标志的设置进行安全性评价,并提出改善建议。

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