Durability can be shaped before construction begins. This presentation compares design-bid-build, construction manager at risk, and design-build through case-based examples, focusing on how each method affects investigation completeness, decision speed, constructability, risk allocation, and the ability to respond to unknown conditions. The practical conclusion is to align the delivery method with uncertainty and execution constraints so repair decisions can evolve without sacrificing long-term performance.
Key ideas
- Match the delivery method to the level of uncertainty and the consequences of being wrong.
- Treat investigation completeness, decision speed, and constructability alignment as durability inputs.
- Build field-decision pathways and scope flexibility before work begins.
- Use execution constraints—including access, shutdowns, sequencing, and material compatibility—to shape the delivery strategy.