What Is Near Miss Rate?
A near miss is an event that could have caused injury or damage but did not. Near Miss Rate measures the frequency of these events, typically normalised per 200,000 hours worked for comparability with Safety Incident Rate.
Unlike most metrics where lower is better, higher near miss reporting is a positive signal. It means employees are engaged enough to report hazards before they cause harm.
The Formula
Near Miss Rate = (Number of Near Misses ÷ Total Hours Worked) × 200,000
Or tracked simply as a count per period (week, month).
Data Requirements
| Source | Required | What You Need |
|---|---|---|
| Safety System | Yes | Near miss reports, incident tracking |
| HR / ERP | Optional | Hours worked (for normalised rate) |
Near Miss Rate is a Phase 4 metric — it requires a near miss reporting system and a culture that supports it.
Why It Matters
- Leading indicator — near misses predict future incidents; addressing them prevents injuries
- Prevention opportunity — fix hazards before someone gets hurt
- Safety culture measure — high reporting indicates trust, engagement, and awareness
- Root cause elimination — near miss data reveals systemic hazards that can be engineered out
The Paradox
A plant with zero near miss reports is not necessarily safe — it may simply have a culture where people do not report. A sudden increase in near miss reporting after launching a new programme is a positive sign, not a negative one.
Best Practices
- Build a no-blame reporting culture — punishing reporters guarantees silence
- Investigate all near misses with the same rigour as actual incidents
- Implement corrective actions quickly to demonstrate that reporting leads to change
- Track near miss trends by location, type, and shift to identify systemic issues
- Celebrate reporting — it shows an engaged workforce committed to safety
Related Metrics
- Safety Incident Rate — near misses are the leading indicator for incidents