Tag: hoc

Residual risk and the psychology of lower order controls

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This conference paper briefly discussed the follies of lower order controls in the context of human performance. Nicely, it took a really empathetic view of people and their limits in perception and attention: it’s not a bug that needs to be blamed or feared, but just a biological feature which needs to be considered. First… Continue reading Residual risk and the psychology of lower order controls

Efficacy and Understanding of the Safety Hierarchy of Controls

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This PhD thesis from Stephen Young was interesting. They studied evidence supporting the hierarchy of control (HOC), constraints on its efficacy, and more. Way too much to cover. Some extracts: ·        There isn’t a lot of evidence supporting the efficacy of the HOC ·        One reason is: “An unequivocal demonstration of efficacy [of the HOC] is problematic,… Continue reading Efficacy and Understanding of the Safety Hierarchy of Controls