Successful alarming depends on the disclosing a latent hazard. A main goal in resilience assurance is to disclose latent hazards.

  If the operators are not aware of the risks, they might become aware of it only after it is too late to tackle them.

  Hazards can be detected by checking the system compliance with the operational rules.

  Hazard detection is based on two types of resilience add-ons:

• Component-level add-ons include sensors and indicators about particular components
• System-level add-ons are special units added to detect exceptional situations and events.

  The design should incorporate special sensors for hazard detection. In the example, the sensor is a thermometer.

Examples

• In the Torrey Canyon accident, the problem was of latent scenario setting The Scenario analyzer proposed here enables detection of this kind of in hazards in time. hazard detection for this case study is here ...
• In the TMI accident, the problems were of latent component (valves) faults, latent exceptional scenario setting (maintenance operation in production) and ambiguous indication of the situation. hazard detection for this case study is here ...

Secondary risks

The secondary risks involved in hazard detection are about the reliability and correctness of the detection add-ons:

Updated on 22 Jan 2017.