Abstract
This study evaluated a method of applying color temperature convertible headlamps to improve driving safety in adverse weather conditions such as fog and rain during night driving. The concept of color temperature convertible headlamps is to improve the driver’s visibility by driving with a color temperature of 6000 K on a clear night and switching to a color temperature of 3000 K with better light transmittance at night in adverse weather. Through this study, a method for evaluating the night visibility related to such color temperature convertible headlamps under bad weather at night was suggested. To this end, a method of using a facility that can implement weather conditions such as fog and rain was proposed, and evaluation conditions according to the climatic conditions and the distance of pedestrian targets were set and actual tests were conducted.
Highlights
Driving at night in adverse weather conditions can be a threat to safe driving by reducing the driver’s forward visibility [1]
According to statistics from the Road Traffic Authority, as of 2016, the total number of traffic accidents in Korea decreased by 4.8% compared to the previous year, but the number of traffic accidents involving elderly drivers increased by 5.9% [6]
Through the method proposed in this study, contrast values were compared according to the color temperature of 3000 K and 6000 K for pedestrian targets under bad weather conditions at night
Summary
Driving at night in adverse weather conditions can be a threat to safe driving by reducing the driver’s forward visibility [1]. According to statistics from the Road Traffic Authority, as of 2016, the total number of traffic accidents in Korea decreased by 4.8% compared to the previous year, but the number of traffic accidents involving elderly drivers increased by 5.9% [6]. The number of traffic accidents involving elderly drivers is increasing every year due to deterioration of cognitive ability while driving and deterioration of driving ability due to geriatric diseases [4]. In this regard, there is a case in which a headlamp was developed and evaluated to improve the visibility of the elderly in consideration of the glare and sensitivity characteristics of the elderly [7].
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