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首頁> 外文學(xué)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.

機譯：降低亮度和增加模糊相結(jié)合對較早的駕駛員速度和視敏度的影響。

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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.
機譯：當(dāng)視線模糊或亮度降低時，駕駛員對自己和其他道路使用者的風(fēng)險更大。過去的研究分別研究了這些視覺狀況，發(fā)現(xiàn)每種視覺狀況都會降低視力，而不會嚴重損害操縱能力。但是，未知的是，亮度降低與模糊增加會如何影響驅(qū)動性能。這項研究試圖通過在駕駛模擬器中測試10位參與者來量化這種對老年人舒適駕駛速度和視敏度的綜合影響。大多數(shù)亮度和模糊條件與駕駛員可能實際遇到的條件相當(dāng)。要求參與者提高他們感到舒適的速度，并且無需使用速度計就可以保持在車道內(nèi)。為了確保參與者按照指示待在車道上，采用了行車時間百分比的方法來確認各個條件下轉(zhuǎn)向性能均不存在差異。老年人駕駛員僅在極端模糊的情況下減速。但是，每次操作都會損害視敏度。有趣的是，在訓(xùn)練條件要求時速超過50 mph時，駕駛員有機會選擇自己的速度，并大大放慢了速度。這一出乎意料的發(fā)現(xiàn)表明，老齡駕駛員選擇做的事與他們可以做的事相比存在重要差異。這一發(fā)現(xiàn)具有重要的應(yīng)用意義。

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  • 作者

    Klein, Nathan D.;

  • 作者單位

    Clemson University.$bPsychology.;

  • 授予單位 Clemson University.$bPsychology.;
  • 學(xué)科 Engineering Civil.; Psychology Experimental.; Transportation.
  • 學(xué)位 M.S.
  • 年度 2008
  • 頁碼 83 p.
  • 總頁數(shù) 83
  • 原文格式 PDF
  • 正文語種 eng
  • 中圖分類 建筑科學(xué);心理學(xué);綜合運輸;
  • 關(guān)鍵詞

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