Improving pollutants dispersion in street canyons for better urban living

高层建筑形成的城市街道峡谷限制了机动车排放物的扩散。这加剧了路边空气污染，对公众构成严重的健康风险，但在城市规划中往往被忽视。本项目旨在通过结合新的现场实验和数值模拟，揭示城市街道峡谷中控制机动车排放扩散过程的机制。预期成果包括一个预测路边空气质量的有效工具、减少空气污染的控制措施和更好的未来城市规划准则。该项目旨在帮助政策制定者和城市规划者有效地管理城市发展项目，并保障我们城市的高空气质量标准。

Urban street canyons formed by tall buildings restrict dispersion of vehicle emissions. This poses severe health risks to the public by aggravating roadside air pollution, but is often overlooked in city planning. This project aims to uncover the mechanisms controlling vehicle emissions dispersion processes in urban street canyons by combining novel field experiments and numerical simulations. Expected outcomes include a validated tool for predicting roadside air quality, control measures for reducing air pollution and guidelines for better future urban planning. This project expects to critically assist policy makers and urban planners to effectively manage city development projects and safeguard a high air quality standard in our cities.