01622796

Component

The Design-Build (DB) project delivery method has been increasingly favored by the US public sector. The performance of DB projects is of great importance. Although a great deal of literature has focused on the effects of the various factors on DB project performance, there is hardly any literature that has treated the governance structure of a project as a factor. This paper bridged this gap through empirical research. Based on the decision-making mode, governance structure is divided into the centralized and decentralized types. Other factors considered in the study are selection method, project complexity, project size and competition. A total of 24 DB projects were sampled from the Maryland State Highway Administration. ANOVA tests and ordinary least square (OLS) regressions were performed on two cost performance metrics – contract award cost growth and total cost growth. It was determined that the centralized governance structure relates to better performance in contract award cost growth (no significant main effect) and total cost growth (a significant main effect). The impact of governance structure on schedule delay is inconclusive. It is suggested that an agency should use a centralized office at the project governance level for DB project delivery.

This paper was sponsored by TRB committee AFH15 Standing Committee on Project Delivery Methods.

01618707

17-03869

English

22p

2017

Transportation Research Board 96th Annual Meeting

Digital/other

Figures; References; Tables

Contracts; Costs; Decision making; Delays; Design build; Governance; Project delivery; Regression analysis

Maryland State Highway Administration

Administration and Management; Transportation (General)

Transportation Research Board Annual Meeting 2017 Paper #17-03869

TRIS, TRB, ATRI

Dec 8 2016 11:29AM