Design-Build and CM at Risk- comparative analysis for owner decision making based on case studies and project surveys

Abstract

Currently, many researchers and stakeholders believe that effective delivery systems for construction projects are key to improving project quality and value in the construction industry. Therefore, it is important that owners use the best project delivery system because there are significant consequence due to differences in contracting processes and roles and responsibilities among contracting parties. For the reason, this research aims to compare the efficiency of DB with that of CMAR, as two methods used to select or deny expectations, specifically through quantitative and qualitative analysis. In order to do that, the researcher identified performance data and benefits, drawbacks, and success factors of DB and CMAR through survey and case projects and also analyzed performance data collected from two case projects. Consequently, owners will be able to understand characteristics, differences, and success factors of two different PDSs based on the comparative study. Furthermore, this research could be used to develop a decision support system for owners to select an appropriate PDS.