SH222: You can’t risk assess a hazard you don’t know about: DeltaP
Counter-Errorism in Diving: Applying Human Factors to Diving · Gareth Lock at The Human Diver
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Show Notes
In this episode, we explore the critical role of understanding hazards in diving and the importance of effective risk management. From the everyday threat of drowning to the more abstract risks like decompression sickness, we discuss how divers rely on equipment, training, and planning to mitigate dangers. The conversation highlights overlooked hazards like differential pressure (DeltaP), which can be deadly when misunderstood, as illustrated by tragic real-world examples. We also examine the psychology of risk normalization, emphasizing that ignorance of hazards can lead to complacency and tragedy. By raising awareness and promoting informed decision-making, this episode underscores the necessity of knowledge, preparation, and humility in diving safety.
Original blog: https://www.thehumandiver.com/blog/you-can-t-risk-assess-a-hazard-you-don-t-know-about-deltap
Links: Risk or Uncertainty blog: https://www.thehumandiver.com/blog/risk-or-uncertainty
Ignaz Semmelweis: https://en.wikipedia.org/wiki/Ignaz_Semmelweis
Video of a toy diver experiencing Delta P: https://youtu.be/uI0WOdX7cfU?t=350
Video of diver clearing lock gate: https://www.youtube.com/watch?v=MWGFEZ1tpsg
Incompetent and Unaware presentation: https://youtu.be/pGBYj1BNhvI?si=fioKreIdIS_5nX1F
Follow up video to lock gate clearance: https://youtu.be/nKp8duCNvyQ?si=-8jAyHQVGWTP8Ov7
Normalisation of risk blog: https://www.thehumandiver.com/blog/normalisation-of-deviance-not-about-rule-breaking
Differential pressure hazards in diving - Diving Information Sheet No. 13
Delta P ADCI Checklist
Tags: English, Decision-Making, Gareth Lock, Risk, Risk Management