공동주택 높이에 따른 가시비율 변화에 관한 연구

Abstract

Recently in Korea, urban and residential environment improvement projects have been actively conducted to improve residential environment centering around existing downtowns and high-storied construction of apartment house damages urban landscape due to the pursuit of profitability and economy within development zone. Therefore, this study is to provide the basic materials necessary for controlling the height of apartment house through the investigation on how visible rate of apartment houses is changed according to current status and changes of height of surrounding topography and artificial buildings with four prearranged apartment housing sites in Gwang-ju city and the following conclusions are obtained. 1. Visible rate of apartment houses has complex influences by surrounding topography and landscape condition and open building is often recognized as projected landscape. Thus, for the preservation of urban skyline or sky screen factor, deciding the height of apartment house after examining the changes of visible rate based on surrounding topography and landscape conditions is needed. 2. When floor space index of apartment house is enhanced, screen area is also increased and landscape change of new building is great and experiences the feeling of pressure and handicap. So decision of height in planning apartment house requires introduction of method deciding proper height after analyzing changes of visible rate according to changes of floor space index. 3. Since planning building-to-land ratio of apartment house with enhanced height is beneficial to ensure visibility from viewing site and reduces changes of landscape, method of calculating proper building-to-land ratio is required after analyzing the changes of visible rate according to the change of building-to-land ratio, but the use of this method is limited because enhancing the building-to-land ratio is legally regulated. 4. Change of visible rate by four computer simulations analyzed with different conditions is appeared by existing visible rate < minimum visible rate of floor space index < maximum visible rate of the building-to-land ratio < planned visible rate < minimum visible rate of the building-to-land ratio < maximum visible rate of floor space index in order. Therefore, planning with reduced floor space index is needed for minimizing changes in existing landscapes and ensuring proper visible rate. In particular, method of controlling the height is needed by selecting floor space index with less changes of landscape after analyzing the changes of skyline and screen factor at adjacent areas according to the changes of floor space index.