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| Delay Analysis Techniques for Construction Projects pdf |
The objective of delay analysis is to calculate the project delay and work backward to try to identify how much of it is attributable to each party (contractor, owner, or neither) so that time and/or cost compensation can be decided.
Questions that need to be answered here often include:
- What was supposed to happen?
- What did actually happen?
- What were the variances?
- How did they affect the project schedule?
The various DATs have varying capabilities in providing sound answers to these questions. The techniques can be grouped under non-Critical Path Method (CPM)-based techniques and CPM-based techniques. They have been reported by different authors in the literature using different names, with the most common techniques being:
- as-planned vs. As-built
- impacted as-planned
- as-planned but for
- collapsed as-built
- window analysis
- time impact analysis
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