In this video, we continue our in-depth exploration of forensic delay analysis methods with a focus on Collapsed As-Built, also known as the “But For” method. This technique is a retrospective delay analysis approach that evaluates the impact of specific delay events by removing them from the As-Built schedule to determine how the project completion date would have been affected. Unlike methods that compare planned vs. actual progress, Collapsed As-Built relies solely on the As-Built schedule, making it useful when no reliable As-Planned baseline exists.

Key Topics Covered:

• The Fundamentals of Collapsed As-Built: Understand how this method is applied when a baseline schedule is missing and why it is considered one of the more straightforward forensic delay analysis techniques.
• How It Works: Learn the step-by-step process of removing delay events from the As-Built schedule to determine the hypothetical completion date without those delays.
• Practical Application: See a real-world construction project example, where we demonstrate how this method identifies and quantifies delay impacts.
• Comparative Analysis: Discover how Collapsed As-Built differs from As-Planned vs. As-Built, Windows Analysis, and Time Impact Analysis, highlighting its advantages and limitations in forensic claims.
• Challenges and Limitations: Explore the key drawbacks of this method, including:
  • Its reliance on hypothetical scenarios
  • Potential bias in favor of one party
  • The inability to assess concurrent delays, which makes it less suitable for complex disputes

Collapsed As-Built can provide valuable insights when project documentation is incomplete or when other methods cannot be used. However, practitioners must be aware of its limitations and potential biases when applying it to claims resolution and legal disputes.

Watch the full video here: Collapsed As-Built Delay Analysis – YouTube