关键词: 隧道工程, 照明评价, 室内仿真, 静、动态光环境, 视觉功效

Abstract: With the rapid increase of highway tunnel mileage in China, the problems such as high energy consumption, low quality of lighting and frequent traffic accidents in the operation become increasingly prominent. Based on the current lighting design and operation status of highway tunnels, the indoor simulation of lighting environment of highway tunnels was carried out with the perspectives of drivers “static spatial visual perception” and “dynamic luminance adaptation”. The effects of environmental parameters such as the spectral power distribution (SPD) and the correlated color temperature (CCT) on the visual state of the tested subjects were quantitatively characterized by visual performance based on reaction times. The results show that in the interior zone of highway tunnels (especially long and extra-long tunnels), the visual performance of the tested subject increases with SPD of the light environment in the visual field perception domain, that is SPD1, SPD2 and SPD3 in turn, and increases with the increase of CCT of the environment. The visual performance corresponding to the visual task is significantly lower than that corresponding to other tasks when the luminance gradient decreases. The short adaptation time under the dynamic dark adaptation helps to enhance the tested subjects visual performance in the process of decreasing the luminance gradient. The maximum spectral sensitivity of the drivers vision system gradually transits to the shortwave direction under the characteristics of dynamic dark adaptation.

Key words: tunnel engineering, lighting evaluation, indoor simulation, static and dynamic lighting environment, visual performance