14.4 Using the ORE Concept for Dams Systems
205
Risk
Mitigative Costs
Cost to Attain
Acceptable
Residual Risk
Acceptable
Residual Risk
De Minimis
Acceptable
Theoretical Zero Risk
Mitigation Level
ALARA
ALARP
BACT
Fig. 14.2 Decrease of risk against increasing mitigative costs. The vertical line is set in the
ALARP/ALARP/BACT zone. The position tends to slide toward the right, away from the optimum, due to public opinion pressure
14.4 Using the ORE Concept for Dams Systems
For our quantitative risk assessments we use our “universal” platform called ORE
(Optimum Risk Estimates, ©Oboni Riskope Associates Inc., 2014–2019). Although
ORE is a proprietary platform, we regularly teach its principles, which are summarised below. You are welcome to apply them “by hand” to simple cases, but
beware: pretty soon any system goes beyond the “Excel worksheet” capabilities and
properly structuring the risk register will become a challenge.
Ore follows a continuous loop as shown below in Fig. 14.3.
Project Enhancements
From pre-feasibility to closure
Corporate Tolerance
Societal Acceptability
Site history
Imagery, monitoring
Inspections
Reports
Experts
Models
Hazards
Interdependencies
Consequences
ORE Dashboards
Risks
Environmental
Operations
Communication
Strategies
Construction
Operations
Design Decisions:
Alternative Selection
Actions,
Mitigation,
Resilience
enhancement
Rich Data Context
Data Base
Prioritization & Display
Fig. 14.3 The ORE (©Oboni Riskope Associates Inc.) continuous risk assessment/risk-based decision making workflow
205
Risk
Mitigative Costs
Cost to Attain
Acceptable
Residual Risk
Acceptable
Residual Risk
De Minimis
Acceptable
Theoretical Zero Risk
Mitigation Level
ALARA
ALARP
BACT
Fig. 14.2 Decrease of risk against increasing mitigative costs. The vertical line is set in the
ALARP/ALARP/BACT zone. The position tends to slide toward the right, away from the optimum, due to public opinion pressure
14.4 Using the ORE Concept for Dams Systems
For our quantitative risk assessments we use our “universal” platform called ORE
(Optimum Risk Estimates, ©Oboni Riskope Associates Inc., 2014–2019). Although
ORE is a proprietary platform, we regularly teach its principles, which are summarised below. You are welcome to apply them “by hand” to simple cases, but
beware: pretty soon any system goes beyond the “Excel worksheet” capabilities and
properly structuring the risk register will become a challenge.
Ore follows a continuous loop as shown below in Fig. 14.3.
Project Enhancements
From pre-feasibility to closure
Corporate Tolerance
Societal Acceptability
Site history
Imagery, monitoring
Inspections
Reports
Experts
Models
Hazards
Interdependencies
Consequences
ORE Dashboards
Risks
Environmental
Operations
Communication
Strategies
Construction
Operations
Design Decisions:
Alternative Selection
Actions,
Mitigation,
Resilience
enhancement
Rich Data Context
Data Base
Prioritization & Display
Fig. 14.3 The ORE (©Oboni Riskope Associates Inc.) continuous risk assessment/risk-based decision making workflow