| Title |
Effects of Compact Spatial Characteristics on the Urban Thermal Environment |
| Authors |
김종성(Kim, Jong Sung) ; 강정은(Kang, Jung Eun) |
| Keywords |
압축도시 ; 압축형 도시공간구조 ; 도시 열환경 ; 열지수 ; 패널모형 Compact City ; Compact Spatial Structure ; Urban Thermal Environment ; Heat Index ; Panel Model |
| Abstract |
This study analyzed the impact of compact urban spatial characteristics on the urban thermal environment. Compact urban spatial characteristics were measured according to six indicators, population size, population density, concentration, clustering, land use mix, and green space. The models considered impervious surface, rainfall and wind speed as control variables. The results of the panel analysis of 68 cities from 2005 to 2013 indicated that high population density and impervious surface area considerably increased the heat index. The concentration and clustering of development demonstrated different effects on the urban thermal environment. Concentrated and clustered development in the urban center had both negative and positive effects on the heat index. Low-density development in areas outside the center reduced urban heat; however, low-clustered development exacerbated the urban thermal environment. In addition, increasing wind speed and precipitation reduced the heat. The findings suggest that a compact urban form with high-density development in the center and relatively low-density development outside the center is recommended to enhance the urban thermal environment. Green space, a pervious surface, and the wind path must be more seriously considered in urban planning for the urban thermal environment. |