safety and human error. accidents incident accident near-miss
Post on 20-Dec-2015
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TRANSCRIPT
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Safety and Human Error
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Accidents
incident
Accident
Near-Miss
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Accidents may occur due to
1. Unsafe condition
2. Unsafe act
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Error Oxford Dictionary – something
incorrectly done through ignorance or inadvertence.
Error – a failure to carry out a task in the way intended by the person performing it, in the way expected by other people or in the way that achieves the desired objectives.
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The Facts
It should be understood by all operation personnel that 96% of all accidents are related to unsafe behaviours and that only 4% of accidents are caused by unsafe conditions.
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Human Error Video
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Type of human error
Mistake – an error that occurs as a result of ignorance of the correct task or the correct way to perform it.
Mismatch – an error that occurs because the tasks is beyond the physical or mental ability of the person asked to perform it, perhaps beyond anyone’s ability.
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Type of human error
Non-compliance or violation – an error that occurs because someone decides not to carry out a task or not to carry it out in the way instructed or expected.
Slips and lapses – an error that occurs as a result of forgetfulness, habit, fatigue or similar psychological causes.
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Causal Factors for Accidents
Human Performance: Verbal communication Written procedures & documents Man-machine interface Environmental condition Work schedule Work practices Work organization/planning Supervisory methods Training/qualification Change management Resource management Managerial method
Equipment: Design configuration &
analysis Equipment condition Environmental
condition Equipment
specification, manufacture & construction
Maintenance/testing Plant/system operation
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