2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference


Title
Simulation-based Framework for Construction Delay Analysis

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Author(s)
Mr. Muaz Fagiar, University of Alberta
Dr. Yasser Mohamed, University of Alberta (Presenter)
Dr. Simaan AbouRizk, University of Alberta
Abstract

The most common types of construction disputes relate to schedule impacts, or delay claims. They are caused by unanticipated events that extend the project and/or prevent its execution from being performed as originally planned. Yet, they are the least understood and most complex disputes in the construction field. Various schedule delay analysis methods have been developed and used. Among them, window-based delay analysis methods have been recognized as the most credible methods, however, they still have functional limitations and use prerequisites. This study discusses some of the outstanding drawbacks, identifies new issues and demonstrates inaccuracies in some of the proposed methods. To improve delay analysis practices, a new framework for forensic delay analysis is introduced. The framework takes full advantage of a time-step simulation approach to model project data, analyze delay claims, and quantify both acceleration and time extension award. Details of the simulation-based framework are introduced along with demonstration of its merit over existing delay analysis methods. The proposed framework is applicable for both prospective and retrospective delay analysis situations.