臺北市信義計畫區於1976 年開始進行都市計畫，至信義計畫區公告主要計畫及細部計畫後，在1982 年正式進入容積管制操作階段。並且以超大街廓、留設大量開放空間等規劃手法，並成為臺灣第一個落實都市設計的都市計畫地區。開放空間系統作為提供使用者安全且舒適的活動空間。當初建置信義計畫之開放空間系統時，依照都市設計準則規範項目進行規劃配置，藉由點線面的系統串連，使得開放空間具有延伸、連續性。但在執行階段中陸續出現開放空間私有化問題，導致原本開放的空間，遭到隔離阻斷，使空間系統開始產生斷裂點。本次研究將在開放空間被阻隔的情形下，找出開放空間系統斷裂點，並提出縫補機制，將破碎的開放空間系統化零為整，使其未來規劃更加完善。

The urban planning of Xinyi District was established in 1976, Taipei city. Until the master plan and detailed plan of Xinyi District were officially announced and implemented, Xinyi District started to enter a stage of volume control in 1982. Moreover, it contained various urban design principles, such as superblock and reserving open spaces in street corners, and became the first urban planning area to implement urban design in Taiwan. Open space system provides a safe and comfortable space for human activity. Originally Xinyi District built open space system that followed principles of urban design. As a result, individual and linear open spaces were connected one another, which formed the extensibility and continuity of open spaces. However, in reality, illegal prohibition and obstruction in public access to open spaces in private development had undermined the urban design principles. As a result, open spaces in Xinyi District were fragmented by those “breaking points”. This research found that those breaking points were results of the residents’ misconducts or illegal behaviors, and this research provided recommendations of sewing methods to claim missing open spaces back.