Applying Cost-Based Risk Assessment to Stream Restoration Design

摘要: A low-risk, stream restoration design includes methods that validate assumptions, incorporate uncertainty in the decision-making process during project phase, and reduce by checking final design. twostep method of incorporating risk has been developed as a combination Design Failure Modes Effects Analysis (DFMEA) quantification. As first step, DFMEA is applied to identify terms ratings with respect consequence failure, likelihood occurrence ability detect failure. Due its evolutionary nature, can be revised account for modifications relative are re-evaluated examine reductions uncertainty, thereby, risk. The second step quantifying using initial expected failure costs. Expected cost defined product probability associated Since both difficult determine directly restoration, from used estimate respectively. Using this method, estimated several alternatives compared provide justification guidance on selecting most effective alternative. two-step, riskbased illustrated through application relocation Pennsylvania North Carolina. Overall, presented here prove valuable will improve success