捷運專案之協調需求與供給

Coordination Needs and Supply of Subway Projects

沈芳瀅(Fang-Ying Shen) ； 張行道(Andrew S. Chang)

《中國土木水利工程學刊》 21卷1期 (2009/03) Pp. 35-49

https://doi.org/10.6652/JoCICHE.200903_21(1).0004

摘要

協調是營建工程成功的關鍵因子，惟工程雖付出協調時間與成本，成效卻不如預期。本研究探討施工專案的協調需求與供給，首先由理論導出工作的不確定性(U)與模糊性(E)造成協調需求，工程師運用不同的工作方式提供協調供給；然後選取10個捷運施工專案，使用專案性質與環境問卷以衡量U和E，並設計表格調查工程師不同協調方式的時間分配；最後分析協調方式供給如何滿足協調需求，以及與績效的關係。研究結果發現，專案績效與U和E的高低無關；研究案例所使用的九種協調方式中，視察花最多時間(23%)，公文處理次之(20.5%)，會議佔13%；績效佳專案之承包商就工作模糊性的高低，選擇適當口頭或書面協調方式。

關鍵字

協調 ； 溝通 ； 不確定性 ； 模糊性 ； 需求與供給 ； 績效 ； 營建專案

並列摘要

Coordination has been regarded as a critical factor of construction projects, but it is usually not well understood. It is common that time and money are spent on coordination yet the performance is not as expected. This paper studies the coordination needs and supply of construction projects. First, coordination needs were derived from work uncertainty and equivocality (U and E), and supply was offered by different methods engineers use to coordinate. Then ten subway construction projects were investigated. A questionnaire was modified to quantify the project U and E, and a time sheet designed to collect contractor engineers' work time allocated in nine coordination methods. Finally, how actual coordination time distribution meets the needs and their relationships with performance were analyzed. The results indicate that the project performance is not related to the level of U and E. In the nine coordination methods of the studied projects, site visit takes up most time (23%), followed by correspondence (20.5%) and meetings (13%). Projects with good performance apply adequate oral or written coordination mainly based on work equivocality.

並列關鍵字

coordination ； communication ； uncertainty ； equivocality ； needs and supply ； project performance ； construction project