Critical Path Delay Impact Analyzer
Quantify construction delays, classify impacts, and build defensible analysis reports
What You Can Do
You can methodically quantify schedule delays on construction projects by comparing as-planned versus as-built timelines, determine whether delays sit on the critical path or consume float, classify delays as excusable, compensable, concurrent, or contractor-caused, and produce defensible delay impact narratives and change order documentation. This skill ensures your analysis distinguishes causation, calculates delay periods accurately, and withstands scrutiny from owners, insurers, and arbitrators.
Features
determine whether delays directly affected project completion or were absorbed by schedule float
systematically categorize disruptions by responsibility type (excusable, compensable, concurrent, contractor-caused)
compare baseline schedules against actual execution to isolate cause-and-effect relationships
quantify how delays consumed available schedule buffer and affected downstream activities
generate change order narratives, delay impact reports, and claim support documents
identify when multiple parties caused overlapping delays requiring separate analysis
build baseline documentation for mitigation protocols and acceleration requests
produce professional delay analysis summaries structured for owner presentations and dispute resolution
Example Output
Delay Classification & Impact Summary
- Weather Delay (Days 45–52): 8 calendar days, non-critical path, 12 days float remaining → no project completion impact
- Material Shortage (Days 78–105): 27 calendar days, ON CRITICAL PATH → 27-day project delay
- Design Change (Days 110–118): 8 days, excusable and compensable, concurrent with contractor rework → shared responsibility
Change Order Narrative Due to owner-issued design change on [DATE], structural drawing revisions were not received until Day 110. Critical path analysis confirms this 8-day delay directly impacted project completion by [X days]. Supporting documentation: RFI log, email correspondence, updated CPM schedule showing activity dependency.
Delay Impact Table
| Delay Event | Type | Duration | Critical Path? | Impact (Days) | Documentation |
|---|---|---|---|---|---|
| Weather | Excusable | 8 | No | 0 | Weather records |
| Material | Compensable | 27 | Yes | 27 | PO, delivery logs |
What's Included
- SKILL.md instruction file with delay analysis methodology and classification framework:
- Delay Classification Checklist: excusable vs. compensable vs. concurrent delay identification matrix
- As-Planned vs. As-Built Analysis Template: structured format for comparing baseline and actual schedules
- Change Order Narrative Template: professional delay impact documentation for claims and negotiations
- CPM Schedule Impact Worksheet: float calculation and critical path mapping tool
Who It's For
- Schedule Analysts & CPM Specialists — quantifying delays and building defensible critical path analyses
- Project Managers & Controls Engineers — substantiating change orders and documenting schedule impacts
- Construction Claims Consultants — preparing delay impact reports for arbitration and dispute resolution
- Contract Administrators — classifying delays by responsibility and supporting contract negotiations
- Contractors & Subcontractors — documenting delays to support time and cost recovery claims
Best For
- Change order substantiation and schedule impact documentation
- Delay classification and critical path impact determination
- As-planned vs. as-built schedule comparison and cause-effect analysis
- Float consumption tracking and schedule recovery justification
- Claims preparation and arbitration-ready delay impact narratives
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