Positive Contrast 조건의 야간 도로에서 노면과 장애물의 휘도 조합이 야간 운전자의 장애물 인지거리 및 안전성에 미치는 영향 : 60대 이상 고령운전자 대상 실도로 주행실험 (The Effect of Road-obstacle Luminance Combination at Night in Positive Contrast Condition on Driver's Obstacle Detecting Distance : Road Driving Test by the Driver in Their 60s or Older)

서지정보

· 발행기관 : 한국조명.전기설비학회
· 수록지 정보 : 조명.전기설비학회논문지 / 32권 / 12호 / 33 ~ 45페이지
· 저자명 : 조원범

초록

This is the basic study to develop visibility-based road safety evaluation approach at night, which is intended to identify the effect of road-obstacle luminance combination at night in positive contrast condition in which the obstacle is brighter than road surface on driver's obstacle detecting distance at night as well as to evaluate the safety level on the road at night. To that end, road driving test by the drivers in their 60s was conducted at night. Road luminance was set at 0.3, 1.6 and 3.0cd/m2, respectively, for the test while obstacle luminance was set at 4 to 5 different conditions depending on road luminance to provide positive contrast condition. The size of the obstacle was set at 15×15 according to the requirement in domestic road design criteria. According to the test result, the lower the road luminance and higher the obstacle luminance the longer the detection distance, indicating the relatively higher algebraic function relationship. In this study, combination relations between road luminance and obstacle luminance required for the driver to detect the obstacle at stopping sight distance were presented by target safety level and the result is expected to be used as road safety evaluation guideline at night to determine the obstacle luminance necessary to achieve the safety goal at the certain road luminance condition or as guideline to determine the nighttime road safety evaluation using road luminance and obstacle luminance.

영어초록

This is the basic study to develop visibility-based road safety evaluation approach at night, which is intended to identify the effect of road-obstacle luminance combination at night in positive contrast condition in which the obstacle is brighter than road surface on driver's obstacle detecting distance at night as well as to evaluate the safety level on the road at night. To that end, road driving test by the drivers in their 60s was conducted at night. Road luminance was set at 0.3, 1.6 and 3.0cd/m2, respectively, for the test while obstacle luminance was set at 4 to 5 different conditions depending on road luminance to provide positive contrast condition. The size of the obstacle was set at 15×15 according to the requirement in domestic road design criteria. According to the test result, the lower the road luminance and higher the obstacle luminance the longer the detection distance, indicating the relatively higher algebraic function relationship. In this study, combination relations between road luminance and obstacle luminance required for the driver to detect the obstacle at stopping sight distance were presented by target safety level and the result is expected to be used as road safety evaluation guideline at night to determine the obstacle luminance necessary to achieve the safety goal at the certain road luminance condition or as guideline to determine the nighttime road safety evaluation using road luminance and obstacle luminance.

참고자료

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