El Samaty Hosam Salah, Waseef Ahmed Abd Elaziz, Badawy Nancy Mahmoud
Dar Al Uloom University (DAU), College of Architectural Engineering and Digital Design, Al Riyadh, Saudi Arabia.
Port Said University, Faculty of Engineering, Architectural Engineering and Urban Planning Dept., Port Said, Egypt.
Urban Clim. 2023 Jun 12:101577. doi: 10.1016/j.uclim.2023.101577.
Looking beyond COVID-19 outbreak, Scholars continue to develop innovative approaches to bring the city on to health and safety. Recent studies have indicated that urban spaces could produce or propagate pathogens, which is an urgent topic at the city level. However, there is a dearth of studies investigating the interrelationship between urban morphology and pandemics outbreak at the neighborhood level. Accordingly, this research will trace the effect of cities morphologies on the rate of spread of COVID-19 through a simulation study held on five areas that form the urban morphology of Port Said City, using Envi-met software. Results are explored based on the degree of concentration and rate of diffusion of coronavirus particles. It was observed on a regular basis that wind speed has a directly proportional relationship with the diffusion of the particles and an inversely proportional relationship with the concentration of the particles. However, certain urban characteristics led to inconsistent and opposing results like wind tunnels, shaded arcades, height variance, and spacious in-between spaces. Moreover, it is obvious that the city morphology is being transformed over time toward safer conditions; urban areas constructed recently have low vulnerability to respiratory pandemics outbreak compared to older areas.
展望新冠疫情之外，学者们继续探索创新方法，以促进城市的健康与安全。近期研究表明，城市空间可能滋生或传播病原体，这在城市层面是一个紧迫的课题。然而，鲜有研究探讨邻里层面城市形态与疫情爆发之间的相互关系。因此，本研究将通过使用Envi-met软件，对构成塞得港城市形态的五个区域进行模拟研究，追踪城市形态对新冠病毒传播速度的影响。研究结果基于冠状病毒颗粒的聚集程度和扩散速度进行探讨。经常观察到，风速与颗粒扩散成正比，与颗粒浓度成反比。然而，某些城市特征导致了不一致甚至相反的结果，如风洞、有顶拱廊、高度差异和宽敞的中间空间。此外，很明显城市形态正随着时间向更安全的条件转变；与旧城区相比，近期建设的城区对呼吸道疫情爆发的脆弱性较低。
