An Evaluation of Thermal Comfort of New Towns in Seoul Metropolitan Area

Abstract

This study assessed the thermal comfort of new towns in the Seoul Metropolitan Area (Ilsan, Bundang, Dongtan1) using PET (Physiologically Equivalent Temperature) which refers to real human heat stress. The relationship between PET and urban spatial elements was also analyzed using multiple regression analysis.The study results show that the thermal comfort of Dongtan 1, which is considering a reduction of the urban heat island effect in the planning phase, is higher than other cities. In addition, through regression results, the impervious ratio, floor area ratio, commercial area ratio, and residential area ratio were found to be major factors increasing PET. Moreover, the river area ratio and NDVI were found to be major factors decreasing PET.This study has scientific significance as research that focuses on the assessment of thermal comfort scientifically and definitely, by estimating PET for an entire urban area using GIS analysis that included remote sense analysis and the wind field model. The results of this study can be used in preparing more effective urban plans for the promotion of citizen thermal comfort.

Possibility of Urban Heat Island Formation by Lifting Green Belts: Focusing on the Cases of Busan Metropolitan City, Korea

“…또한 인구밀도, 주거지역 비율, 버스정류장 밀도와 같은 요소도 도시열섬현상에 부정 적 영향을 미치는 것으로 나타났다 (Ko and Park, 2019). 도심열섬현상에 따른 피해와 관련 있는 열쾌적성에 관한 국내연구에서 불투수면적률, 용적률, 녹지와의 거리 등은 생리적 등가 온도(Physiologically Equivalent Temperature, 이하 PET)를 상승시키고 하천면적률, 식생활력도(Normalized Difference Vegetation Index, 이하 NDVI) 등은 PET를 저감 시키는 것으로 나타났다 (Oh et al, 2013). (Park and Choi, 2011).…”