Abstract:In recent years, road tunnels have developed rapidly, which greatly facilitates transportation; and the lighting zone length study has become more and more significant. The length of the entrance reinforced lighting section in the regulations and the bases proposed by different codes, including CIE, EU, UK, USA, Japan and China, was contrasted, and it was found that there was a big difference in these regulations and bases. In order to analyze and solve this problem, the visual performance method was adopted to simulate the light environment of the highway tunnel site through laboratory experiments, which was mainly for reaction time index. The reaction time of several testers under different light environment was tested, and the adaptation time of each entrance reinforced lighting step was obtained by the preliminary fitting analysis of the data. The relationship expression between the adaptation time and the luminance of each lighting step was obtained by fitting the adaptation time and the luminance change of each entrance reinforced lighting section. By using the proposed relationship expression, the corresponding adaptation time values under the luminance steps of different entrance reinforced lighting sections could be obtained, and the length of each reinforced lighting step could be further deduced. Finally, the obtained results were compared with the existing specifications. The research results show that: the obtained adaptation time of entrance section is longer, the transition section has little difference, and the relative energy saving performance is slightly worse; whereas the safety is obviously enhanced.
杜峰1,2,刘辉1,翁季2,胡英奎2,蔡贤云2. 基于视觉功效的公路隧道入口段长度研究[J]. 重庆交通大学学报(自然科学版), 2020, 39(03): 36-43.
DU Feng1,2, LIU Hui1,WENG Ji2,HU Yingkui2, CAI Xianyun2. Threshold Zone Length of Road Tunnel Based on Visual Performance. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(03): 36-43.
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