- 期刊
對向汽車頭燈照射對正向駕駛者辨識距離的影響
The Glare Effect of the Headlamps of an On-coming Vehicle on a Driver's Vision
摘要
汽車頭燈的主要功能係使駕駛者在夜間能看清道路狀況，但也可能對迎向汽車駕駛視力造成干擾。本研究由設計評價的眼光，探討在會車時對向汽車頭燈眩光對正向駕駛者可辨識距離的影響。研究採夜間實車測試方式，由受測者坐在轎車內，量測有、無對向車頭燈照射之可辨識距離，以其比值做為眩光影響的指標。結果顯示，當對向汽車頭燈距離正向車40公尺時，受測者可辨識距離與無對向車頭燈照射時之可辨識距離相比，縮減最大，其後，隨對向車的接近，可辨識距離漸漸增加，錯車以後，回復至無對向車頭燈照射之可辨識距離。可辨識距離縮減幅度因目標物的顏色而異，以紅、綠、藍、黑色的縮減百分比較大，縮減約33~38%，黃色與白色則縮減約30%。
並列摘要
The major function of the headlamps on an automobile is to help the driver see the road conditions ahead during dark hours. However, the distribution of light from the headlamps of an on-coming vehicle may cause a glare effect on a driver's vision. This research investigated the glare effect of the headlamps of on-coming vehicles on drivers' vision by analyzing the ratio of the drivers' vision-capability distances when facing headlamps turned on to such distances when the headlamps were off. In the test, two passenger cars were statically placed in separate lanes, headed in opposite directions. By varying the distance between the two cars, the distances from which the drivers could see a specific object ahead were measured under both with-and without-headlamps-on conditions with regard to the on-coming vehicles. The test results showed that, because of the glare effect of the headlamps, the drivers' vision-capability distances were reduced between 30% and 40%, depending on the colors of the various objects faced. The angles between the driver's gazing direction and the line connecting the driver's eyes to the on-coming vehicle have more influence on the glare effect than the illumination around the driver's eyes.