| Summary: | 碩士 === 國立成功大學 === 土木工程學系碩博士班 === 96 === Private participation (PP) in public works has induced private funds, technology, management and vigor to the once-government-executed construction projects. However, whether the construction effectiveness of PP projects is better than that of government projects is not known. This research explores the factors influenced by PP and their impact on execution and effectiveness of schedule and quality of design and construction.
Selecting five projects individually from the government-executed Taipei Rapid Transit Systems (TRTS) and PP-Kaohsiung Mass Rapid Transit (KMRT), this study interviewed owners, contractors, designers, franchisee and other participants 17 times at two stages, to seek the relationships of input factors, execution process and output effectiveness. It is found that the input factors of procurement methods and participant's psychology influence the schedule and quality execution but not their effectiveness. It is the experience and ability that influence the PP construction projects.
In the factors of procurement methods, the PP procurement is more flexible and the franchisee can develop the vigor and ability because of the PP promotion law. The reputation, ability and financial soundness of the franchisee are very important and the construction team is better composed of construction and operation companies. The design-built construction projects will undergo troubles if executed in the traditional design-bid-build way. The construction duration of PP projects is shorter than that of traditional projects. The payment milestone should be better arranged.
In the factors of construction quality, there is no difference between TRTS and KMRT. The supervision organization and procedure should be simple and the PP projects needs little supervision from the government. In the factors of participant's psychology, the psychology burden of government employees is still not light if public funds are involved. The PP projects bring vigor but should consider the government risk. The status of constructors becomes higher compared with designers in PP projects.
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