Project Phase–Based Contingency Adjustment Framework for Infrastructure Renewal Projects
Publication: Journal of Construction Engineering and Management
Volume 149, Issue 2
Abstract
Given the importance of accurate contingency estimation to properly absorb cost fluctuations, there have been enormous efforts to identify risk factors and measure contingency in roadway projects. However, no study has proposed a contingency framework that reflects the linkage effects of factors through the project phases. To this end, this research develops a project phase-based contingency adjustment framework using a path analysis drawing on a dataset of 1,053 rehabilitation, reconstruction, and resurfacing (3R) roadway projects in Florida. In particular, our framework incorporates the sequential effects of factors through the lenses of project phases from planning and bidding and contract to construction and completion. The developed path model shows that individual factors may have direct and/or indirect impacts on project costs. The results of this study can be applied to better contingency and cost estimation and proper risk management in the preconstruction phases of roadway renewal projects.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The current research has part of the corresponding author’s doctoral dissertation entitled “Quantitative Analysis on Schedule, Cost, and Contingency: Performance Implications of Innovative Contracting Strategies,” which is electronically available from https://hdl.handle.net/1969.1/174138. The authors are grateful to the anonymous reviewers for their helpful comments and suggestions.
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Journal of Construction Engineering and Management
Volume 149 • Issue 2 • February 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Jan 24, 2022
Accepted: Oct 26, 2022
Published online: Dec 15, 2022
Published in print: Feb 1, 2023
Discussion open until: May 15, 2023
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