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
Tag: risk-controls
Thinking About Process Safety Indicators
This well-cited paper from Hopkins (2007) discusses some of the inconsistencies that existed at the time (and likely does still) about process safety indicators, and the definitions and uses of other indicators like leading and lagging. This paper sparked a number of interested follow-up papers from other authors – I’ll cover some of these soon.… Continue reading Thinking About Process Safety Indicators
SafetyInsights.org 