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首页> 外文学位 >The effects of combining reduced luminance and increased blur on older driver speed and visual acuity.
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The effects of combining reduced luminance and increased blur on older driver speed and visual acuity.

机译：降低亮度和增加模糊相结合对较早的驾驶员速度和视敏度的影响。

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摘要

Drivers may be at more risk to themselves and other roadway users when vision is blurred or when luminance levels are reduced. Past research has investigated these visual conditions separately, finding that each degrades acuity without severely impairing steering ability. However, it is unknown how reduced luminance in combination with increased blur will affect driving performance. This study sought to quantify this combined effect on older adults' comfortable driving speed and visual acuity by testing 10 participants in a driving simulator. The majority of the luminance and blur conditions are comparable to those the driving population may realistically encounter. Participants were asked to drive the speed at which they feel comfortable and could stay within their lane without using the speedometer. To ensure participants followed the instructions to stay in their lane, a percentage-of-time-in-lane measure was used to confirm no differences in steering performance existed across conditions. The older adult drivers only slowed down during the extreme blur condition; however, visual acuity was impaired by each manipulation. Interestingly, after the training conditions requiring a speed above 50 mph, drivers were given the opportunity to choose their speed and dramatically slowed down. This unexpected finding illustrates an important difference in what aging drivers choose to do in comparison with what they can do. This finding has important applied implications.
机译：当视线模糊或亮度降低时，驾驶员对自己和其他道路使用者的风险更大。过去的研究分别研究了这些视觉状况，发现每种视觉状况都会降低视力，而不会严重损害操纵能力。但是，未知的是，亮度降低与模糊增加会如何影响驱动性能。这项研究试图通过在驾驶模拟器中测试10位参与者来量化这种对老年人舒适驾驶速度和视敏度的综合影响。大多数亮度和模糊条件与驾驶员可能实际遇到的条件相当。要求参与者提高他们感到舒适的速度，并且无需使用速度计就可以保持在车道内。为了确保参与者按照指示待在车道上，采用了行车时间百分比的方法来确认各个条件下转向性能均不存在差异。老年人驾驶员仅在极端模糊的情况下减速。但是，每次操作都会损害视敏度。有趣的是，在训练条件要求时速超过50 mph时，驾驶员有机会选择自己的速度，并大大放慢了速度。这一出乎意料的发现表明，老龄驾驶员选择做的事与他们可以做的事相比存在重要差异。这一发现具有重要的应用意义。

著录项

  • 作者

    Klein, Nathan D.;

  • 作者单位

    Clemson University.$bPsychology.;

  • 授予单位 Clemson University.$bPsychology.;
  • 学科 Engineering Civil.; Psychology Experimental.; Transportation.
  • 学位 M.S.
  • 年度 2008
  • 页码 83 p.
  • 总页数 83
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;心理学;综合运输;
  • 关键词

  • 入库时间 2022-08-17 11:38:53

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