Project Controls and Estimation Curriculum
Module from the Project Controls and Estimation Curriculum curriculum.
Module 5 - Contingency and Risk · Learning Objectives · 1. Distinguish contingency from management reserve · 2. Apply qualitative ranging (% by category) · 3. Apply quantitative Monte Carlo with probability distributions · 4. Set P50, P80 confidence levels per owner appetite · 5. Escalate estimates per published indices (CEPCI, ENR) · Typical Contingency by Estimate Class
| Class | Typical Contingency % | Basis | Notes | P Level | Ref |
|---|---|---|---|---|---|
| Class 5 | 30-50% of TIC | Capacity factor | Very preliminary | P50 | AACE 40R |
| Class 4 | 25-40% of TIC | Equipment factors | Budget | P50 | AACE 40R |
| Class 3 | 15-25% of TIC | Semi-detailed | FID basis | P50 | AACE 40R |
| Class 2 | 10-15% of TIC | Detailed | Bid | P50 | AACE 40R |
| Class 1 | 5-10% of TIC | Definitive | Contract | P50 | AACE 40R |
| Risk reserve (on top) | 5-15% | High-risk items | Specific line items | Owner | Owner policy |
Source: Project_Controls_Estimation_Curriculum_v1.xlsx · Sheet: Contingency
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