A Comprehensive Categorization and Flowcharting for Schedule Delay Analysis Methods
Publication: Journal of Legal Affairs and Dispute Resolution in Engineering and Construction
Volume 17, Issue 1
Abstract
A bewildering array of over two dozen delay analysis methods exists from which construction professionals may choose. However, no comprehensive comparison and synthesis have been made for all such methods as to their required inputs, structured processes, and outputs. ASCE Standard 67-16 does not specify any particular retrospective or contemporaneous analysis method. Moreover, while many methods are related, differences between versions have remained unclear. Methods may also follow the same process but be given different names in the literature. This study, therefore, synthesizes 26 delay analysis methods. Each algorithm is formalized via a verified process into a flowchart that structures its input, process, and output. Based on this, capabilities and shortcomings can be identified. Subsequently, the connections between methods are studied and compiled into a family tree based on their timing view (i.e., contemporaneous or retrospective) and calculation direction (i.e., as-built to or from as-planned).
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The authors gratefully acknowledge former undergraduate summer research intern Ms. Jordan M. Bryant (Catholic University of America) for her independent verification and validation of the flowcharting.
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Information & Authors
Information
Published In
Journal of Legal Affairs and Dispute Resolution in Engineering and Construction
Volume 17 • Issue 1 • February 2025
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Oct 31, 2023
Accepted: Jun 4, 2024
Published online: Sep 25, 2024
Published in print: Feb 1, 2025
Discussion open until: Feb 25, 2025
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