What is Time Impact Analysis?
Time Impact Analysis is a method of calculating the delay to a project based on the delay to project completion. It is normally associated with being a best practice method for assessing a single delay on the critical path of a project schedule that is in progress. The analysis looks to compare the schedule pre-delay to the schedule with the delay included. It looks to calculate the duration variance between the two schedules to provide the contractor with a basis for estimating the delay impact. Time Impact Analysis is best used to calculate delays looking forward rather than back, other methods such as As-Built But-For (ABBF) can be more accurate for calculating retrospective delay.
