Computerizing ICBF Method for Schedule Delay Analysis
Publication: Journal of Construction Engineering and Management
Volume 137, Issue 8
Abstract
Schedule delay is a common construction dispute. For analyzing schedule delays, a previous study had proposed an academic analysis method, the “isolated collapsed but-for” (ICBF) method. However, because many construction projects involve numerous complex activities, the procedure of using the ICBF method for schedule delay analysis is time-consuming. Therefore, this study used Microsoft Visual Basic for Applications (VBA) language and spreadsheet techniques to develop an Excel-based program for rapid delay analysis rather than manual calculation. A case study confirmed that the program automatically produces analytical results with only common delay documents (as-planned and as-built schedules and identified delay events). Compared with previous studies, schedule analysts can obtain analysis results quickly and correctly. Research results provide not only a convenient tool for schedule delay analysis but also a guide to computerize various academic delay analysis methods in the future.
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Acknowledgments
The authors would like to thank the National Science Council, Taiwan, ROC, for financially supporting this research under Contract Nos. NSCTNSC 96-2221-E-216-027-MY2 and NSCTNSC 98-2811-E-216-002.
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© 2011 American Society of Civil Engineers.
History
Received: Apr 8, 2010
Accepted: Dec 8, 2010
Published online: Dec 10, 2010
Published in print: Aug 1, 2011
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