Comparison of project objectives and critical factors between DBB and DB in China

The selection of project delivery systems is a critical problem for project owners, because it will directly affect the achievement of owner´s project objectives. At the beginning, this paper proposes the project objectives of Design-Bid-Build and Design-Build project, and also the factors influencing the selection of Design-Bid-Build and Design-Build. Then, Reliability Analysis and Non-parametric test are adopted to analyze the differences of the project objectives between Design-Bid-Build and Design-Build project, and the differences of the factors that influence the selection of Design-Bid-Build and Design-Build in mainland China. At last, this paper concludes the critical factors that influence the selection of Design-Bid-Build and Design-Build.