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- the control of recognized hazards to achieve an acceptable level of risk |
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Any event that happens unexpectedly, without a deliberate plan or cause, and usually result in harm, injury, damage, or loss. |
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An expression of the combined severity and probability of loss. |
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What you wanted to do, but what you did (a miscalculation) |
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Maximum level of risk you're willing to take. |
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How you see the risk of what risk is involved with whatever scenario you're in. |
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How you see the risk of what risk is involved with whatever scenario you're in. |
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Briefly describe the domino theory of accident causation and its origins, including the two main principles of this theory? |
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Two central points: -Injuries caused by the action of preceding factors - Removal of central factor (unsafe act/hazardous condition) negates the action of the preceding factors and prevents accidents * Emphasis on person-related factors |
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What are the five factors in the sequence that lead to an accident in the domino theory of accident causation? |
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1. Social Environment 2. Poor character traits 3. Unsafe acts or conditions 4. Accident 5. Injury |
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Briefly describe the human factors theory of accident causation. |
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Human Error: The difference between desired and actual performance |
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What are the three broad factors that lead to human error in the human factors theory? |
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-Overload Condition: imbalance between capacity and system demand -Inappropriate Response: lapse of judgment, not knowledge -Inappropriate Activity: worker either underestimates risk or performs an activity outside of skill set |
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What is the main difference between an inappropriate activity and an inappropriate response? |
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-Inappropriate activity- doing something beyond you're knowledge -Inappropriate response- lapse of judgment not knowledge |
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Describe the three types of bias we discussed in class. |
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-Recovery bias- results from recent events that affect you in same way -Sunk cost effect- likelihood won't change -Overconfidence bias |
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Under what condition(s) do we accept risk? |
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1- When we don't know that it's there. 2- When it's insignificantly low. 3- When we are sure that "it's worth it" |
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What is the relationship between perceived risk, acceptable risk, and human behavior? Within this relationship, how does the objective risk change? |
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