Applied Sciences | |
Effects of Sidewall Brightness on LED Lighting Environment and Visual Performance in Road Tunnels | |
Weixing Mao1  Xuefeng Chen2  Long Zhou2  Hehua Zhu2  Shouzhong Feng2  Jie Li3  | |
[1] Anhui Zhongyi New Material Science and Technology Co., Ltd., Chuzhou 239500, China;Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China;Wuhan Guangyi Transportation Science and Technology Incorporated Company, Wuhan 430073, China; | |
关键词: tunnel lighting; sidewall brightness; lighting environment; visual characteristics; experiment; | |
DOI : 10.3390/app12104919 | |
来源: DOAJ |
【 摘 要 】
The lighting design of a road tunnel focuses on the setting of pavement luminance. As for the tunnel sidewall luminance, it simply follows the principle of no less than 60% of the pavement luminance. In fact, the sidewall is one of the important components of the tunnel lighting environment; however, the impact of the improvement of sidewall brightness on the LED lighting environment in a tunnel has not attracted enough attention. In this study, the impact of the improvement of tunnel sidewall brightness on the lighting environment and visual characteristics of human eyes were analyzed based on the lighting experiments when the tunnel sidewalls were decorated with two different types of materials and illuminated by LED lamps with five different color temperatures. The test results show that the tunnel sidewall luminance will increase if the energy-storage and luminescent coating with high reflectance is decorated on tunnel sidewalls, and the pavement luminance increases with the increasing sidewall luminance. After the improvement of the sidewall and pavement luminance, the visible distance for a small object in the tunnel will increase to a certain extent. Furthermore, there is no discomfort for drivers during driving, and the changing of eye pupil diameter is relatively stable, which indicates that the increase in tunnel sidewall luminance has a positive effect on the visual performance of drivers.
【 授权许可】
Unknown