土地混合使用，尤其是住商混合使用，一直被認為是達成環境面永續都市或是生態城市的要素之一。其除了提高住商可及性使人們步行與騎自行車的機率增加外，同時也讓公共空間的安全性提高、並增加都市的活力。然而住、商兩者間不完全相容的土地使用型態卻也容易引發對居住環境的負面衝擊，例如噪音、異味、光線侵擾、使人感覺較擁擠、降低隱私性等使環境品質下降，而可能降低人對住商混合住宅社區的偏好。本研究從過去研究中較少提及的都市空間規劃與設計角度切入，探討不同都市規劃與設計元素如何影響住商混合區之環境品質，其研究目的有三：1. 歸納整理可能影響住商混合區建成環境之都市規劃與設計元素2. 建立環境面生態都市概念下，住商混合實質環境品質之評估面向與指標3. 分析各都市規劃與設計元素對住商混合建成環境指標之影響。
本研究以台北市的住三分區為基礎，建立模擬住商混合社區，模擬各種都市規劃、設計元素之變化情境，以利衡量每項都市設計元素以及組合情境影響下，住商混合社區各面向建成環境品質評估指標的變化。使用工具包括ArcGIS、Google ShetchUP、及AutoCAD軟體，以建立模擬都市基本圖，並使用空間分析工具、ArcGIS外掛模組及Excel計算各面向之環境指標數值。
研究結果顯示降低建築建蔽率有助於提升住商混合社區整體環境品質以及除了商店經營性外所有面向的建成環境(例如行人友善步行空間、居民住家可居住性及自然環境)，商店經營性則於建蔽率40%-55%間時表現較佳。在建物形狀方面，顯示正方塔型與長條型建築在住商混合區建成環境各面向指標上表現的差別不大。此外，階梯式退縮建築對於行人友善步行空間、居民住家可居住性及自然環境等均有提升的效果。 / Mixed land use has been widely considered as one of the key planning principles for achieving (environmentally) sustainable city or eco-city in terms of promoting transit patronage, walking and biking, and incubating retail-business friendly communities. However, it may also lower the livability because of the problems like noise, light instruction and downgraded residents privacy as to decrease the residents’ preference to live in mixed-use area. Few studies, nevertheless, has been done on the roles of the various tools in urban planning and design in improving the physical environment for both residents and retail businesses. The objectives of the paper are: (1) to review the urban planning and design tools normally applied by planners which may have impacts on the physical environment of mixed-use community; (2) to compile an inventory of indexes corresponding to the quality of physical environment for both residents and retail businesses; and (3) to examine the impacts of these tools on the physical environment indexes. The research method involves an simulation analysis, which is conducted in a selected mixed-use community in Taipei city, Taiwan. The simulation analysis helps examining the impact of each of the tools on physical environment indexes . The software packages applied are Google SketchUp, AutoCAD, ArcGIS, and Excel.
The results of simulation analyses suggest that lowering the building coverage rate (BCR) is helpful in improving overall quality of mixed-use community and all sub-indexes (i.e., pedestrian-friendly environment, residents’ livability and nature environment) except for retail business operation environment. The quality of retail business operation environment performs better when BCR stays at the intermediate level (between 40%-55%). In the aspect of building shape, there is minimal difference showed on the impact on the overall index between tower-shaped and slab-shaped buildings. Besides, the stair-shaped setback is suggested for better pedestrian-friendly environment, residents’ livability, and especially nature environment.
| Identifer | oai:union.ndltd.org:CHENGCHI/G0099257007 |
| Creators | 張懿萱, Chang, Yi Hsuan |
| Publisher | 國立政治大學 |
| Source Sets | National Chengchi University Libraries |
| Language | 中文 |
| Detected Language | English |
| Type | text |
| Rights | Copyright © nccu library on behalf of the copyright holders |
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