대향차량의 상향등에 의한 눈부심이 고령운전자의 안전한 전방 곡선부 진입을 위해 요구되는 노면휘도 수준에 미치는 영향

Abstract

The purpose of this study was to analyse the effects of glare caused by the oncoming high-beam light, which many drivers cite as a factor that makes driving difficult on the night road, on the safety of drivers entering the curved part of the night road. To this end, the study conducted a virtual road test on the elderly subjects, and as a result, based on the possibility of securing the perception-response distance required by elderly drivers to safely respond to the appearance of forward horizontal curved section, it identified the appropriate road luminance level depending on the driver’s ratio to secure the required perception-response distance. According to the analysis, the higher the surface luminance, the further the perception-response process required to respond to the appearance of the forward horizontal curved section can be completed, and the margin from the end of the perception-response process to the starting point of the curved section is analyzed to have the relationship of natural logarithm function. In addition, it was analyzed that the critical road surface luminance of about 3.3 times the safety level based on 75% of the safety level and 2.4 times the safety level 85% of the safety level is required when affected by the high-beam light of the opposing vehicle.