Calculating and Apportioning Responsibility for Project Delays in Construction Dispute Resolution Using Modified But-For and Daily Windows Analysis Methods.

Abstract

Resolving construction claims has become an inevitable part of the Project Manager’s job for both Contractors and Employers. The ability to win a claim is dependent on proving legal responsibility, correctly calculating and apportioning responsibility for project delays, and claim amount. Project delay analysis is a process of calculating and apportioning responsibility for project delays. Existing delay analysis methods are evaluated and found inadequate, and this work describes a number of improvements to address the identified shortfalls. Two accurate delay analysis methods, The Modified But-For (MBF and the Daily Windows Analysis (DWA) method, are presented to calculate and apportion responsibility for project delays using a three-dimensional concurrent delay representation that clearly shows the Employer, Contractor, and third-party delays and use of set of fair concurrent delay rules to apportion responsibility for concurrent delays. This will help to minimize disputes in the Construction sector.