摘要
从驾驶视认需求角度出发,研究在自由流条件下隧道中间段亮度与驾驶员安全视认需求的关系.以色温5 700 K、显色指数70的LED灯为隧道基本照明灯具,通过驾驶员在光源特性下的动态视认试验,分析驾驶员在隧道中间段的视觉特性及需求,得出自由流、不同设计速度条件下能满足驾驶员安全视认需求的亮度阈值,研究结论均低于现行规范标准.
In view of the driving visual cognition demands, the relationship between the luminance oftunnel interior zone and the demand of the drivers＇safe visual cognition in the case of free flow wasstudied. With the LED lamps at color temperature of 5 700 K and color rendering index of 70 as the basiclighting lamps for tunnels, by analyzing of the drivers＇visual features and the demands in the interior zoneof the tunnel, the threshold value of luminance for the drivers＇safe visual cognition demands at differentdesign speeds in the case of free flow was concluded through the dynamic visual cognition test under thecharacteristics of light source. The research result shows that the driving visual cognition demand is lowerthan that of the current standard.
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2016年第5期768-773,共6页
Journal of Beijing University of Technology
基金
国家自然科学基金资助项目(61271371)
贵州省交通运输厅科技资助项目(2012-122-023)
关键词
隧道中间段
亮度
视认需求
视觉特征
tunnel interior zone
luminance
visual cognition demand
visual feature
