Safety Data & KPI Skills
Safety data should help prevent harm and improve controls. It should not create pressure to hide incidents.
2 min read
A strong safety analyst balances lagging outcomes with leading information about the health of the control system.
Leading versus lagging indicators
Lagging
Examples:
- recordable incidents;
- lost-time events;
- injuries;
- process-safety events.
They describe outcomes that already occurred.
Leading
Examples:
- overdue critical actions;
- audit completion;
- control verification;
- training/competence;
- inspection findings;
- safeguard impairment.
They may provide earlier signals, but only if they connect to meaningful risk.
Incident and near-miss data
Analyze:
- event type;
- task;
- location;
- time;
- severity;
- potential severity;
- recurring factors.
Do not assume more near-miss reports mean worse safety. Reporting culture changes the count.
Audit and action data
Useful measures:
- open actions;
- overdue high-risk actions;
- repeat findings;
- closure quality;
- aging.
Closing low-value actions quickly can make a dashboard look good while serious issues remain.
Exposure and activity context
Counts need context.
Examples:
- hours worked;
- number of lifts;
- maintenance tasks;
- production volume;
- contractor exposure.
Normalization should match the risk question.
Rates and normalization
Rates can improve comparison, but they can mislead when:
- populations are small;
- exposure differs;
- definitions change;
- reporting quality differs.
Explain denominator and scope.
Dashboard design
A useful dashboard should answer:
- Where is risk concentrated?
- Which actions are overdue?
- Which controls are degrading?
- What changed?
- Who needs to act?
Avoid visual clutter.
Data quality
Check:
- duplicate incidents;
- inconsistent categories;
- missing fields;
- late reporting;
- denominator accuracy;
- changing definitions.
Perverse incentives
If managers are rewarded only for low incident counts, people may feel pressure not to report.
Balance outcome measures with:
- learning;
- control verification;
- action quality;
- worker participation.
Portfolio project
Use synthetic data to build a dashboard combining:
- incidents;
- near misses;
- actions;
- audits;
- exposure.
Include a short note on what the metrics cannot prove.
Good safety analytics makes uncertainty visible instead of hiding it behind a green KPI.
Related content
- Safety Engineer Career Guide
- Safety Engineer Skills Employers Want
- Safety Engineer Portfolio & Evidence of Experience
Sources
- NIOSH — Hierarchy of Controls — Authoritative control hierarchy and engineering-control framing.