城市照明规划与夜间光环境中动态光污染的分级分类

Hierarchical Classification of Dynamic Light Pollution in Urban Lit Environment at Nighttime

随着照明技术和夜间经济的快速发展,城市夜间环境中的动态光愈发常见,同时也造成了新的光污染。本研究以对动态光污染进行分级分类为目标,开展了深圳市罗湖区动态光环境调研以及典型动态光环境的实证实验。以满意度和可忍受阈值速度为因变量的实验结果表明,变化方式、色彩类型和亮度模式三个参数是造成动态光污染的主要因素。对于变化方式和亮度模式的四个组合来说,其动态光污染程度的大小排序为:变化亮度>突变>恒定亮度>渐变。最后结合已有照明规划对节假日模式的考虑,得到了一套可供城市照明规划使用的动态光精细化9级分级。

With the rapid development of lighting technology and night economy,dynamic light in urban night environment is becoming more prevalent,which also causes additional light pollution.In this study,a field investigation at Luohu District,Shenzhen and an empirical experiment about typical dynamic lit environment were carried out in order to classify urban dynamic light pollution.Results of satisfaction and tolerable speed threshold as dependent variables show that the mode of change,color and luminance are three main factors that causing dynamic light pollution.For the four combinations of change mode and luminance modes,the ranking of the degree of dynamic light pollution is:varying luminance>sudden change>constant luminance>gradual change.In consideration of routines/holiday modes,a nine-level hierarchical classification of dynamic light in urban lit environment at nighttime,which could be applied in urban lighting planning has been proposed.