The Impacts of Morphology of Traditional Alleys on Thermal comfort: A case study of Da Long Wang Xiang in Zhenjiang, China

Traditional alleys in China are mostly characterized by dense population, poor infrastructure, and narrow streets. The general renewal approaches of traditional paid more attention to the physical space while they lack consideration for thermal comfort residents, which often results declines rational design vitality community. This research takes Da Long Wang Xiang historical district Zhenjiang as a case study investigate relationship between morphology street spaces (Alley Width (W), Sky View Factor (SVF), Height Ratio (H/W), building height on both sides alley) microclimatic parameters, such Potential Air Temperature (Ta), Relative Humidity (RH), Wind Speed (WS), Mean Radiation (Tmrt) Physiological Equivalent (PET). have shown that: 1) peak temperature was found at 14:00, all is overheated during this period, particularly NW-SE hotter than NESW alleys; 2) deviation Ta, RH, WS, Tmrt among 13:00 15:00 smaller those NE-SW 3) set shading device or higher buildings side afternoon solar incidence can help create comfortable comfort. findings will provide new strategy alleys.