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유성식(Seongsik Yoo),김세나(Saena Kim),채성기(Sung Gi Chae),임종민(Jongmin Lim),김훈(Hoon Kim) 한국조명·전기설비학회 2019 조명·전기설비학회논문지 Vol.33 No.5
In 2015, the Land Management Administration measured the road surface illuminance at threshold zone of the national road tunnels and found that 76% of the tunnels failed to meet the standard illuminance. For the request of the Ministry of Land, Infrastructure and Transport, the researchers selected 99 sites out of the 499 national road tunnels and investigated basic information to assess whether the tunnels meet the lighting standard by measuring the road surface luminance of the actual tunnels. Through investigation of lighting conditions and management methods, the problems of tunnels that are not meeting the standard were identified and classified according to the problem types, and improvement measures are proposed. The reflectance distributions of the road surface on the threshold zone and interior zone were measured to analyze the variation of road use, and the adequacy of the maintenance was analyzed through the measurement of the wall reflectance. In addition, the adequacy of the The Luminance to Illuminance Conversion Factor used in the tunnel lighting design was reviewed.