Why daylight should be a priority for urban planning

作者：Carlo Volf, Bruno Bueno, Peter J. Edwards, Richard Hobday, Stephan Mäder, Barbara Matusiak, Katharina Wulff, Werner Osterhaus, Gabriele Manoli, Christina Della Giustina, Jasmin Joshi, Jérôme Henri Kämpf, Kevin Vega, Christoph Kueffer · 发表于：Journal of Urban Management · 年份：2024 · DOI：10.1016/j.jum.2024.02.002 · 被引用次数：21 · 研究领域：Urban Heat Island Mitigation、Impact of Light on Environment and Health、Urban Green Space and Health

Daylight is essential for ecosystems and for the physical and mental well-being of people. In densely populated cities, only a small proportion of total daylight is available to support urban greenery and most people have little daily exposure to natural daylight. Despite this, many cities have followed a strategy of densification as a way of preventing urban sprawl and reducing energy consumption. In this article, we review the biological importance of daylight and show that urban densification leads to a reduction in the daylight available for both people and nature. We conclude that daylight in cities should be treated as a limiting resource that needs to be planned and managed carefully, much like water or energy. We suggest elements for a policy framework aimed at optimizing urban daylight, including how to determine daylight needs, how to determine the maximum viable urban density, and policy options for built and unbuilt areas.