Impacted As-Planned analysis involves slotting a known delay event into the contractor’s original schedule, known as the baseline. This baseline reflects the planned performance before work begins.
The fundamental sets of this method include:
- Identify and quantify impact
- Choose the baseline schedule
- Craft a fragmentary network representing the impacts
- Insert the fragment into the baseline to create the “impacted schedule”
- Identify the critical path
Compare completion dates to determine if a critical delay occurred
This method showcases how delays affect the project’s finish date. The simplicity of the Impacted As-Planned method can be advantageous, especially for less complex disputes.
Pros:
- Quick to prepare
- Shows just how crucial the delay is on the original plan
- Helps show who is at fault
- Doesn’t need as-built info
Cons:
- Rarely mirrors reality
- It’s all hypothetical and future-looking, so no cost conclusions here
Baseline programme may have issues causing issues in the analysis - Doesn’t factor in progress or concurrent issues
If you want to carry out a quick and dirty analysis of the delay, one option to use is Impacted as-planned analysis.