The document "AACE 52r-06 — Time Impact Analysis - As Applied to Construction" outlines a method for assessing the time impact of unforeseen events on construction projects. Key points include the following.
It provides guidelines for quantifying the effects of unplanned events on project completion, and focuses on time aspects, not cost, to quantify impacts before considering financial implications. Time Impact Analysis (TIA) is forward-looking, used for estimating the impacts of delays or accelerations on schedules.
TIA is conducted with a "prospective analysis" approach for near-real-time assessment, avoiding retrospective or forensic analysis. The process involves modelling delays using a Critical Path Method (CPM) schedule to compare impacted vs. non-impacted schedules, emphasizing quick and reasonable assessment for timely contractual adjustments.
The document addresses the need for TIA to be simple, effective for short-term delays, and separated from cost analysis to facilitate contractual acceptance.