The Relationship between Delivery Processes and Transportation Projects' Performance

Close collaboration among stakeholders has long been recognized as an important factor of a successful project. In today's climate of a heightened focus on sustainability, collaboration needs to be taken to a new level in the design and construction processes. Most current project delivery systems can provoke adversarial relationships among involved parties. The objective of this research is to investigate the effects of project delivery system components on transportation projects performance. The research developed survey questionnaires and collected information on 84 projects, upon which multi-regression and step-wise regression analysis were performed. The research team then conducted a number of interviews to provide additional insight on important components of project delivery processes. The research findings identified high correlation between successful environmental outcome and the level of trades and suppliers expertise leveraged in early phases of the project and alignment of objectives among stakeholders. The analysis also shows that contractor's early involvement and information sharing among stakeholders are important factors for successful community related objectives. The research is expected to contribute to the knowledge of collaboration and project delivery systems in infrastructure construction by revealing the relationships between components of delivery systems and project performance.