Time-Cost-Quality Trade-Off Analysis for Highway Construction
Publication: Journal of Construction Engineering and Management
Volume 131, Issue 4
Abstract
Many departments of transportation have recently started to utilize innovative contracting methods that provide new incentives for improving construction quality. These emerging contracts place an increasing pressure on decision makers in the construction industry to search for an optimal resource utilization plan that minimizes construction cost and time while maximizing its quality. This paper presents a multiobjective optimization model that supports decision makers in performing this challenging task. The model is designed to transform the traditional two-dimensional time-cost tradeoff analysis to an advanced three-dimensional time-cost-quality trade-off analysis. The model is developed as a multiobjective genetic algorithm to provide the capability of quantifying and considering quality in construction optimization. An application example is analyzed to illustrate the use of the model and demonstrate its capabilities in generating and visualizing optimal tradeoffs among construction time, cost, and quality.
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Acknowledgment
The writers gratefully acknowledge the financial support provided by the National Science Foundation for this research project under the CAREER Award CMS-0238470.
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Information & Authors
Information
Published In
Journal of Construction Engineering and Management
Volume 131 • Issue 4 • April 2005
Pages: 477 - 486
Copyright
© 2005 ASCE.
History
Received: Jun 19, 2003
Accepted: Jun 18, 2004
Published online: Apr 1, 2005
Published in print: Apr 2005
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