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.

Key words: tunnel engineering, tunnel lighting, visual performance, reaction time, adaptation time, length

摘要： 近年来，公路隧道发展迅速，极大便利了交通出行，因此，对其各照明段长度研究非常必要。进行了包括CIE、欧盟、英国、美国、日本以及我国相关规范对入口加强照明段长度规定和依据对照，发现不同规范建议的公路隧道入口加强照明段长度的规定和依据相差较大。为分析和解决该问题，采用视觉功效法，主要针对反应时间指标，通过试验模拟再现公路隧道现场的光环境状况，对多名被试者进行了不同光环境下的反应时间测试，通过对数据的初步拟合分析，得到入口加强各个照明阶梯的适应时间。通过对适应时间和入口各加强照明段亮度变化的拟合，得到了各照明阶梯适应时间与亮度间的关系式，利用该关系式可以得到不同入口加强照明段亮度阶梯下对应的适应时间数值，进一步推导出各加强照明阶梯的长度，最后将得到的结果与既有规范进行对照。研究结果表明：得到的入口段适应时间更长，过渡段相差不大，相对节能性稍差，而安全性则明显增强。

关键词: 隧道工程, 隧道照明, 视觉功效, 反应时间, 适应时间, 长度