1988年2月24日台北都會區大眾捷運系統（下稱台北捷運）開始動工，1996年3月28日首條營運路線木柵線通車，而捷運系統為台北都會區帶來了不止交通上的便利，更是為台北都會區的房屋市場帶動了一波價格的成長，與捷運車站鄰近程度更是成為了一般民眾買房重要的參考指標，而捷運優質購屋也成為了民眾炒作的題材。 台北捷運系統自1996年開通， 2013年11月24日起台北捷運信義線正式啟用，本研究以實價登錄資料做分析與比較，信義線捷運車站共8站，經中正區、大安區及信義區等3個行政區，此為台北市內經濟發展屬較為均衡地域且信義線距離差距較短居民對交通運輸需求較為一致，將可以避免區位效果差異性極殊可能產生的統計徧誤。 實證結果顯示出捷運車站可及程度差異對房價影響效果的不同，若交易不動產物件在距離捷運站250公尺內，其較距離捷運車站500公尺以上的房屋影響房屋單位價格為每平方公尺增加26.051萬元；若在距離捷運站250～500公尺內較距離捷運車站500公尺以上的房屋每平方公尺單位價格僅增加24.94萬元，我們可以看出因為可及程度的差異造成捷運車站影響程度有如水面漣漪一般向外擴散，愈往外影響效果愈小，因為與捷運車站的可及性程度愈低，因享受交通便利所帶來的溢價效果就愈小，反之距離捷運車站越近可及性所帶來的溢價效果越明顯。

Trading Area is a new shopping centre of the Taipei metropolis. Public transportations and the urban plan shaped a comfortable and unique shopping environment, which would be important conditions for consumers that lead to their preference to visit the Xinyi Trading Area. In the last part of this research, after the analysis of consumer behavior, this study proposed concrete suggestions to government authorities to serve as references for planning a trading area to public needs or promoting consumer visiting in a Public-Sector planned trading area in the future. / The goal of this research is to investigate the different development strategies of the Xinyi Planning District planned by the Public-Sector, the effects the public sector has on the formation of the Xinyi Trading Area, and the factors which influence consumer behavior in the Xinyi Trading Area. The study was conducted by questionnaires in the base of documentary analysis. The subjects were drawn by sampling method from consumers in the Xinyi Trading Area, and a total of 505 samples were handed out. The methods of analysis include descriptive statistics, crosstab analysis, and Chi-square tests for data analysis and discussion. Beginning in 1975, the Xinyi Planning District has been designated different functions at different times in the course of the development of the Taipei metropolis. From a local function to an international window, the Xinyi Trading Area is a new shopping centre of the Taipei metropolis. Public transportations and the urban plan shaped a comfortable and unique shopping environment, which would be important conditions for consumers that lead to their preference to visit the Xinyi Trading Area. In the last part of this research, after the analysis of consumer behavior, this study proposed concrete suggestions to government authorities to serve as references for planning a trading area to public needs or promoting consumer visiting in a Public-Sector planned trading area in the future.