Latest / Safe As Podcast / E65: The use and abuse of safety indicators
Transcript
- 0:00Have we become incredibly good at counting accidents but
- 0:04relatively poor at measuring the preconditions of safe and
- 0:08reliable work? And are our safety indicators
- 0:12leading us astray? Let's find out.
- 0:16First, welcome to Safe as I'm Doctor Ben Hutchinson.
- 0:20Check out Safety insights.org for more research.
- 0:23Now. Today's study is from Oswald ET
- 0:26al 2018 titled The Use and Abuse of Safety Indicators in
- 0:31Construction, published in Engineering, Construction and
- 0:34Architectural Management. They explore systemic flaws in
- 0:38how construction and safety is measured, drawing on 2 datasets,
- 0:4432 semi structured interviews with industry professionals and
- 0:48a multi level safety climate survey conducted across 12
- 0:52construction sites. The study begins by
- 0:55contextualising why traditional lagging indicators like lost
- 0:59time, injuries, Ltis are fundamentally limited.
- 1:04Prior research establishes 3 primary limitations.
- 1:07First, the reverse relationship. Indicators intended to be
- 1:12leading often behave like lagging ones.
- 1:15For example, projects with high volumes with safety reporting
- 1:18may also experience higher injury rates, either because the
- 1:22work is inherently higher risk or because of a more transparent
- 1:25safety climate that emphasises reporting more.
- 1:29Second, measuring unsafety rather than safety.
- 1:32Most commonly used indicators capture the absence of failure
- 1:37rather than the presence of safety.
- 1:39We count how many people were hurt, but rarely measure the
- 1:42system's capacity to succeed to effectively control risks.
- 1:48Third, the rearview mirror effect.
- 1:51Because lagging indicators only capture events that have already
- 1:53occurred, they offer very limited predictive value for
- 1:57proactive intervention. This makes it difficult for
- 2:01managers to act before a future catastrophe occurs.
- 2:05So what they find in this study? The interviews revealed that
- 2:10industry leaders remain obsessed with lagging indicators,
- 2:14frequently requesting them as golden numbers of performance.
- 2:18However, this obsession leads to widespread manipulation.
- 2:23When indicators are coupled with financial bonuses or penalties,
- 2:26the resulting data often becomes nonsense.
- 2:29Participants admitted to manipulating statistics, for
- 2:32example, moving an injured worker into a light duty office
- 2:36role specifically to avoid recording a lost time injury.
- 2:40The study notes that financial penalties imposed on contractors
- 2:44further encouraged manipulation of statistics to maintain
- 2:47performance. A core finding is that
- 2:50indicators are often selected for their ease of measurement
- 2:53rather than for their usefulness.
- 2:56Companies focus on what is clearly measurable, such as the
- 2:59number of sidewalks or the toolbox talks completed.
- 3:02However, the study suggests that the most suitable indicators may
- 3:07be harder to gather or measure, and for this reason may
- 3:10ultimately be ignored. This creates a facade of safety
- 3:15or deeper drivers of performance remain unexamined.
- 3:18Even leading indicators, long promoted as their solution to
- 3:21lagging metrics, are susceptible to abuse.
- 3:24The study identifies plastic gestures safety activities
- 3:28performed solely to satisfy a metric.
- 3:30One example involved office based staff such as accountants
- 3:34been encouraged to conduct site safety walks.
- 3:37While this increased the recorded number of safety
- 3:39activities, these individuals often lack the expertise to
- 3:43identify hazards and in some cases increased risk simply by
- 3:48being present in dangerous areas.
- 3:51Leading indicators also frequently focus on activities
- 3:54contractors would undertake anyway.
- 3:56The things that we're going to do, resulting in guaranteed
- 4:00success, on paper at least, without any meaningful
- 4:03improvement in their hazard management.
- 4:06By counting actions rather than evaluating their effectiveness,
- 4:10organisations admit measures that assess the real impact of
- 4:14safety initiatives or their systems.
- 4:16The research found that the vast majority of indicators focused
- 4:19on immediate physical safety, while largely neglecting worker
- 4:23health hazards such as dust exposure, noise and mental
- 4:27health. The authors argue that commonly
- 4:30used health and safety indicators are subject to
- 4:34manipulation and misinterpretation because these
- 4:38indicators fail to reflect the full range of factors affecting
- 4:41safety. Organisations often respond to
- 4:43spikes in lagging indicators with a superficial shotgun
- 4:47approach, rolling out multiple generic action items.
- 4:51Such responses rarely address deeper systemic weaknesses.
- 4:56The study concludes that an exclusive focus on negative
- 5:00lagging indicators is frustrating for contractors and
- 5:03probably everyone else because it provides little insight into
- 5:07why poor performance occurred. And there's also the risk of
- 5:11rewarding largely random outcomes.
- 5:13You see the work from the Construction Safety Research
- 5:16Alliance. So what can we make of these
- 5:19findings? Well, to move forward, the
- 5:21authors argue that the industry must incorporate indicators that
- 5:25capture the complex cultural factors and socio technical
- 5:28factors underpinning safety performance across
- 5:31organisational project workgroup levels, rather than relying
- 5:36solely on easily quantified metrics.
- 5:39Ultimately, the study doesn't argue for abandoning safety
- 5:42indicators. Instead, it warns against
- 5:45treating them as precise or objective measures of safety,
- 5:48whatever that is. Indicators are proxies,
- 5:51imperfect signals that must be interpreted with humility and
- 5:54contextual understanding. When organisations prioritise
- 5:58numbers over meaning, measurement itself becomes a
- 6:01source of risk. More mature approach to safety
- 6:05requires shifting attention from counting failures or activities
- 6:08towards understanding how work succeeds, the inputs, how
- 6:13capacity for safe performance is created, the resources, designs,
- 6:18climates, leadership systems, risk control, create safe and
- 6:23efficient work. In all, it's about how people
- 6:26create safety and sometimes unsafety.
- 6:31Well, that's it. Unsafe as Please like and
- 6:33subscribe and check out safetheinsights.org for more
- 6:36research. If you want to support the
- 6:39channel then links are in the show notes.