林憲德等人於1999年提出台北夏季午夜之都市熱島強度為4.5℃，至2012年簡子翔等人所提出夏季白天最大熱島強度6.18℃、午夜4.38℃，可以發現台北市的高溫化現象並未有顯著的差異，甚至還新增加了多個新興熱區。 本研究以健康新城為研究對象，以實測方式、CFD電腦模擬方法，釐清社區建築環繞下，社區內的高溫化現象，並與社區外的街道環境比較溫度差異，評估熱舒適性。研究結果顯示，建築環繞下的社區內部(社區中庭)，在日落後的確有高溫化現象，白天時則會因為各社區的遮蔽條件、綠化條件不同，而有不同程度的差別。而模擬結果亦顯示，社區開口條件、通風道配置不同，也會影響社區中庭與外部周邊街道環境之舒適性差異。 建議未來社區的建築規劃設計，除了增加綠化措施之外，尚能適度增加開放空間，增加通風性能；而公部門在訂定法定容積時，應考量都市環境因素(增加遮蔽、通風)，酌以調整已達優良的都市實質環境。 / According to Urban Heat Island’s studies by Lin et al. (1999) and Chien et al. (2012), urban heat island intensity (UHIs) of Taipei didn’t get an obvious improvement from 1999 to 2012. UHIs of Taipei was 4.5℃ in the midnight in 1999, 4.38℃ in the midnight in 2012 and 6.18℃ in the daytimes in 2012. Obviously, there are several high temperature area appeared in the years. This study tries to measure the thermal comfort between the area inside Jian-Kang community and the streets’ environment around Jian-Kang community. Furthermore, this study utilize CFD simulation that can help the study knows the reason effects thermal comfort. As the result of the study, the area inside Jian-Kang community has higher temperature after sunset. In the morning, it will have difference due to the shadow and green situation. Also, the simulation results show that the draft condition of the community will influence the thermal comfort. In the future, this study suggests some strategy to have a better urban environment. First, increase much more greening measures. Second, preserve open spaces to improve the ventilation when deciding the community’s design. Third, consider the urban environmental factors when rule the building’s height.