Impacts of urban morphological characteristics on nocturnal outdoor lighting environment in cities: An empirical investigation in Shenzhen
发布时间：2023-05-13
点击次数：
- 论文类型：
- 期刊论文
- 论文编号：
- 107587
- 第一作者：
- Wenjian Pan*
- 合写作者：
- Juan Du
- 发表刊物：
- Building and Environment
- 收录刊物：
- SCI、EI
- 刊物所在地：
- 英国
- 学科门类：
- 工学
- 一级学科：
- 建筑学
- 文献类型：
- J
- 卷号：
- 192
- ISSN号：
- 0360-1323
- 关键字：
- Night-time lighting; Urban morphology; Outdoor public space; Neighbourhood type; Light pollution; Urban design; Urban village
- DOI码：
- 10.1016/j.buildenv.2021.107587
- 发表时间：
- 2021-04-01
- 影响因子：
- 7.093
- 摘要：
- Lighting is a vital environmental element that affects people's outdoor activities and the creation of liveable neighbourhoods in cities. The use of appropriate lighting at night in public spaces can benefit people's social well-being. This research examined the effects of urban morphological characteristics on outdoor night-time lighting behaviours by analysing 11 urban neighbourhoods that reflect the variety of the prevailing urban morphological patterns in the city centres of Shenzhen. A set of urban morphological descriptors were analysed and two lighting parameters were evaluated by on-site measurement. The results revealed that the low-density high-rise modern neighbourhoods presented very high outdoor illuminance levels, but extremely low occupant use at night, and consequently, remain significant potential of light pollution and energy waste. By contrast, urban villages with high-density mid-rise patterns possess limited outdoor lighting facilities but exhibited very high nocturnal neighbourhood vitality. This type of neighbourhood presents a "demand-oriented and energy-saving" lighting behaviour during the night-time through the use of light spill from the nearby indoor light sources. Multivariable linear regression indicated that morphological characteristics significantly contribute to the illumination distribution within urban spaces. Together, building coverage ratio, floor area ratio, tree coverage ratio and ground surface albedo explain 88% of the variability of night-time site illuminance uniformity. With adding the dimension of urban morphology, this research tries to extend the scope of urban nocturnal lighting studies and provides insights into the setting of more specific criteria for urban design, so as to contribute to healthy city initiatives.
- 字数：
- 8000