Very simple, yet effective book explains how to analysis the schedule delays and prepare time impact and extension of time EOT.
From a scheduling standpoint, the goal of every project is to be delivered on time and within budget, with desired functionality and acceptable quality level. In an ideal world, projects follow early starts and early finishes, float is not consumed, deadlines are met, the contractor never files claims for time extension, and the owner never assesses liquidated damages. Such a scenario rarely exists on construction projects – events occur that potentially affect the planned completion of work, requiring a need to evaluate the impending impact of this event on the project schedule.
Schedule impact analysis is defined as the process of quantifying and apportioning the effect of delay or change on a project schedule. Although not all events that differ from the planned schedule of work will result in a schedule impact, this document is written to identify events that will have an impact, show what that impact is, and assign responsibility for the impact.
Download the text book: Schedule Impact Analysis