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在现代城市中,人们夜间活动的时间,大体接近白天活动时间的一半或一半以上。因此,夜间的公共照明是一个不容忽视的因素。城市公共照明,是泛指除了体育场,工地等专用地段以外的一切室外公共活动空间的照明,包括道路、广场、停车场、立体交叉、隧道、桥梁和公共绿地等的照明以及重要建筑物和建筑群、名胜古迹、纪念碑或纪念性雕塑的装饰照明和节日照明等。城市公共照明,首先是延长了城市活动时间,使许多活动(如运输、工商业、文化娱乐活动等)可以延长到夜间
In a modern city, people spend nearly half or more of their time during the night. Therefore, public lighting at night is a factor that cannot be ignored. Urban public lighting refers to the lighting of all outdoor public activity spaces except for stadiums, construction sites, etc., including lighting, roads, squares, parking lots, three-dimensional intersections, tunnels, bridges, and public green spaces, as well as important buildings and buildings. Groups, places of interest, monuments or monumental sculptures, decorative lighting, festival lighting, etc. Urban public lighting, first of all, prolongs the duration of urban activities, enabling many activities (such as transportation, business, cultural and recreational activities, etc.) to be extended to nighttime.