Quantification of Spatial Temporal Congestion in Four-Dimensional Computer-Aided Design
Publication: Journal of Construction Engineering and Management
Volume 136, Issue 6
Abstract
This paper further develops the models proposed by prior research in the field of workspace conflict using four-dimensional computer-aided design. The approach developed here analyzes spatial demand and supply from the perspective of construction operators, and a modeling methodology based on spatiotemporal utilization is proposed. The utilization factor model is developed to show that the criticality of the operator’s spatiotemporal demand leads to worksite congestion and that congestion is a form of worksite conflict. The interference of other space entities increases the space demand, and this increment is quantified with a “dynamic space interference” index This indicator is developed to identify activity spaces which suffer congestion. A decision making tool, the “congestion penalty indicator,” is developed which obtains a schedule-level value for analysis, evaluation, and comparison. Finally, a case study on the refurbishment of an oil refinery column is used to demonstrate the application of the above concepts in successfully identifying a better schedule with respect to on-site congestion.
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Acknowledgments
The writers thank Mr. Peter Ho, Mr. Eric Har, Mr. Neo Chee Keong, and Mr. Wong Pinyan of JGC Singapore Pte., Ltd. for their assistance in providing the case study.
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Information & Authors
Information
Published In
Journal of Construction Engineering and Management
Volume 136 • Issue 6 • June 2010
Pages: 641 - 649
Copyright
© 2010 ASCE.
History
Received: Jun 17, 2008
Accepted: Oct 26, 2009
Published online: May 14, 2010
Published in print: Jun 2010
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