| dc.description.abstract | When there exist drastic change of social and economic conditions, such as the lack of workers and materials, and price fluctuations, government agencies overseeing regional drainage projects encounter abandoned bids. The main reasons include the difficulty to construct due to the influence of the rainy season, the limited choice of construction methods, and the inability of professional construction contractors. Thus the key issue is to motivating the willingness of contractors to bid.
The outsourcing of drainage works has always been a major issue for the relevant agencies. This research hopes to assist practitioners in the planning and design stage, i.e. to grasp the factors that may cause the abandonment of bids, and to prevent and control them from re-appearing; or when the bids have been abandoned, the agencies can timely choose appropriate countermeasures. Literature review and expert interviews were adopted to summarize the factors that caused the abandoned bids of regional drainage projects. The Analytic Hierarchy Process (AHP) method was applied to obtain the relative importance of the flow rejection factors and the influence of each factor by using the questionnaire survey. On the whole, when the market supply situation occurs, the impact is the greatest; for individual factors, the rationality of the construction budget is given the greatest impact, followed by the lack of labor and materials, indicating that the contractors can effectively control the project is the key.
At the same time, the second part of the questionnaire was a sequential investigation. When corresponding to the factors of individual abandoned bids, the solution strategy is primarily sorted to shorten the time for agencies to revise the bids and speed up the re-tendering process. Overall, when the abandoned bids occur, the most helpful approach to improve bidder′s willingness includes reducing the project scale, changing the construction difficulty, or loosening the construction budget. | en_US |