Safety Culture Assessment
You do not have a safety culture because you have a safety policy. You have one because of what people do when the policy is inconvenient.
Safety culture is the shared, often unspoken set of beliefs that govern how people actually behave when no one is watching. The SDIA™ Safety Culture Assessment moves beyond posters and policies to surface those beliefs — combining survey, observation, document review and incident data into a single evidence base for cultural change.
Culture versus climate
The terms are often used interchangeably, but they describe different things. Safety culture is the deep, stable set of shared assumptions built up over years — slow to form and slow to change. Safety climate is the measurable, surface-level perception of how safety is valued right now — responsive to leadership and trackable over time.
A mature programme uses both. Climate surveys give leaders a leading indicator they can act on this quarter; culture assessment tells them whether the deeper beliefs that govern behaviour under pressure are actually shifting. Assessing only climate risks mistaking a good survey score for a healthy culture. Assessing only culture risks waiting years to detect a problem that a climate survey would have surfaced in weeks.
The three layers of culture
A safety culture assessment must reach the layer that actually governs behaviour — not stop at the layer that is easiest to see.
Visible artefacts
What is said, written and shown
Policies, posters, meeting rituals, safety awards, the language leaders use. Easy to see, easy to copy — and the least reliable signal of the culture beneath.
Espoused values
What the organisation claims to believe
Stated commitments, vision statements, the safety policy on the wall. Necessary, but only credible when behaviour confirms them.
Underlying assumptions
What people actually believe
The shared, unspoken beliefs about what really matters — what gets rewarded, what is excused, what gets you promoted. This is the culture that governs behaviour under pressure.
A multi-method evidence base
No single method captures culture. The SDIA™ assessment triangulates across six sources so findings are confirmed rather than assumed.
Safety Climate Survey
Anonymous, multilingual measurement of group-level perceptions across nine dimensions — the leading indicator of cultural health.
Behavioural Observation
Structured observation of safe and at-risk behaviour using the Lead to Inspire™ methodology, with Easy / Difficult / Impossible barrier analysis.
Document Review
Assessment of lessons-learned, audit findings, training records, inspection outputs and corrective-action closure — what the paper trail actually shows.
Interviews & Focus Groups
Structured conversations across co-operation, competence, management style, managing change and shared values.
Incident & Near-Miss Data
Pattern analysis of incidents, high-potential events and weak signals to test whether the culture is learning or blaming.
Organisational Practices
How safety is resourced, governed, rewarded and integrated into operational decision-making — the structural evidence of culture.
From assessment to change
A culture assessment that ends in a report has failed. The SDIA™ assessment feeds directly into prioritised, owned action plans — with the Organisational Safety Decision Maturity (OSDM™) score giving leadership a single, comparable measure of maturity to track over years rather than quarters.
Because the same platform runs the climate survey, behavioural observation and leadership assessment, findings from one method can be tested against another. A weak climate dimension is corroborated or challenged by what observation and incident data show — giving leaders the confidence to act on the evidence rather than argue about the survey.