Plugge, P W (2007) An evidence-based comparison of construction project delivery. PhD thesis, Colorado State University, USA.
Abstract
Medical professionals use evidence-based decision theory to identify uncertainty and knowledge about a problem through research and practical knowledge. Doctors use a gestalt process to synthesize the information available, weighting individual pieces of information related to patient condition, resources, budget, experiential knowledge, and econometrics, to analyze potential risks to a patient. As with a patient, construction projects are all unique and take on their own characteristics throughout the life of the project. This research used the analysis-of-variance (ANOVA) method to analyze the risks associated with economics, environment, project, and technology on the project delivery methods of design-bid-build and design-build from the perspective of professionals in the construction industry. Data collected from this research was used to develop an evidence-based risk model related to the constructs of economics, environment, project, and technological risk and compare them between the two project delivery method variables of design-bid-build and design-build. Findings included significant differences across the constructs of project and technology. Additional findings on cost and time exposed differences associated with expectations of change and the understanding of costs within the design-build delivery method. For the design-bid-build project delivery method, the research confirmed the concern about cost growth through change orders. With design-build, the research supported the concept of improved quality and a better understanding of cost during the design process. Significant findings were categorized around the constructs of project and technology. Conclusions from this research provide construction managers associated with the ownership, design, and construction of projects with information about areas and magnitudes of potential risk concerning the two project delivery methods investigated.
| Item Type: | Thesis (Doctoral) |
|---|---|
| Thesis advisor: | DeMiranda, M |
| Uncontrolled Keywords: | decision theory; construction project; owner; professional; design process; ownership; uncertainty; econometrics |
| Index terms: | decision theory, evidence, construction manager, construction project, construction project delivery, design process, project delivery, econometric, construction industry, ownership, design-bid-build, change order, design-build delivery, owner, variance |
| Subjects: | industry analysis, sociology, measurement and scaling, decision analysis, project controls, contractual condition, production management, economics, economic analysis, project delivery, contractual arrangements, design methods, profession, evaluation and assessment methods |
| Topics: | Stakeholder Management, Roles and Professions, Research Practice, Business Strategy, Time Control, Contract Administration, Organizational Design, Design Practice, Procurement, Risk Management, Project Management |
| Descriptive scope: | 4 PCTA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here