Principles for managing barriers in the petroleum industry – the Norwegian approach. Here’s some extract from this 40 page guide: · Barriers are “measures intended to detect failure, hazard and accident situations at an early stage, reduce their potential for propagating and limit harm and disruption” · “No matter how safely and robustly we design and operate… Continue reading Principles for managing barriers in the petroleum industry
Tag: controls
Do your investigations suck? Are you learning about the functionality of critical controls?
Do your investigations suck? Are they exploring the presence and functionality of risk controls? Check out Safe AF podcast #7 (just 9 mins of your life 😉 ) which dives into what investigations explore and ignore – critically, up to 60% of investigations may not evaluate whether risk controls actually functioned as intended. Spotify: https://open.spotify.com/episode/2uyLNSbLmBti5deKFzB630?si=PUipY6ooRUa7EmBBX0po4g… Continue reading Do your investigations suck? Are you learning about the functionality of critical controls?
Safe AF #7: Limits of investigations and blindness to control effectiveness
Are our investigations blinded to the functioning and effectiveness of risk controls? Are our current approaches, and mental models about how safety events occur, defined less by what they unpack and more by what they leave in the dark? This study unpacks these questions, and evaluates how accident investigators consider, or not, the functioning of… Continue reading Safe AF #7: Limits of investigations and blindness to control effectiveness
Impact of Energy-Based Safety Training on Quality of Prejob Safety Meetings and Control of Hazardous Energy in Construction: Multiple Baseline Experiment
This study explored the role of energy-based safety training on the quality of the prestart meetings. Method was a multiple baseline assessment on 10 construction crews in the US and Canada following the training intervention, then measuring the prejob safety brief quality and HECA (High Energy Control Assessment). Background: · Construction accounts for about 7%… Continue reading Impact of Energy-Based Safety Training on Quality of Prejob Safety Meetings and Control of Hazardous Energy in Construction: Multiple Baseline Experiment
Barrier / control system failures in the BP Texas City disaster & organisational factors
This paper explored the barrier system (e.g. controls) performance in the genesis of the 2005 BP Texas City disaster. Not much to say – the images say enough. Some extracts: · As per image 1, several organisational factors or management delivery system were central in the poor barrier system performance · They propose many of these factors… Continue reading Barrier / control system failures in the BP Texas City disaster & organisational factors
Efficacy and Understanding of the Safety Hierarchy of Controls
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
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