What is it?
Probability of an event happening, Risk(i) = Prob(i) x Imp(i), Perceived risk and not the actual risk is important
What does it involve?
Risk utility does not work for the extremes (low probability, high risk - nuclear meltdown), A hazard is a threat to someone/something, Personal perceptions are an integral part to our attitude towards risk, Risks that originate from human performance are not open to mathematical modelling (terrorism)
Expert vs Inexperienced people estimating risk
Level of knowledge, Consideration of impact, Risk amplification/attenuation
What else is included in risk?
Risk mapping (dread vs unknowns), How safe is safe enough? (public more willing to accept voluntary risk 1000x greater than involuntary), Perception and attitude can lead to behaviour changes, Difficult to predict public perceptions
Risk at work
Climbing on forklifts, Red light running, Misestimating loads
Climber killed on El Capitan, Rocks fell on climber, How is blame attributed?, Do past experiences change our view?, Was he being vigilant?, Was he psychologically and physically fatigued in any way?, Planned out route so were minimising the risk of poor judgement, Experienced climbers
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