matrix_size stringclasses 3
values | severity_level int64 1 5 | severity_descriptor stringlengths 45 64 | likelihood_level int64 1 5 | likelihood_descriptor stringlengths 4 82 | risk_score int64 1 25 | risk_band stringclasses 5
values | alarp_zone stringclasses 3
values | recommended_action stringlengths 28 93 |
|---|---|---|---|---|---|---|---|---|
5x5 | 1 | Insignificant (no injury / negligible damage) | 1 | Rare (may occur only in exceptional circumstances — less than once in 10 years) | 1 | Very Low | Broadly Acceptable | Routine management; no special controls required; retain existing controls |
5x5 | 1 | Insignificant (no injury / negligible damage) | 2 | Unlikely (could occur but not expected — once in 5-10 years) | 2 | Very Low | Broadly Acceptable | Routine management; monitor periodically |
5x5 | 1 | Insignificant (no injury / negligible damage) | 3 | Possible (might occur occasionally — once in 1-5 years) | 3 | Low | Broadly Acceptable | Low priority; existing controls probably adequate; note for periodic review |
5x5 | 1 | Insignificant (no injury / negligible damage) | 4 | Likely (will probably occur in most circumstances — once per year) | 4 | Low | ALARP (Tolerable) | Manage by routine procedures; ensure controls maintained |
5x5 | 1 | Insignificant (no injury / negligible damage) | 5 | Almost Certain (expected to occur in most circumstances — more than once per year) | 5 | Medium | ALARP (Tolerable) | Moderate priority; additional controls may be justified; management responsibility |
5x5 | 2 | Minor (first aid injury / minor property damage < $10K) | 1 | Rare | 2 | Low | Broadly Acceptable | Low priority; manage by routine procedures |
5x5 | 2 | Minor (first aid injury / minor property damage < $10K) | 2 | Unlikely | 4 | Low | ALARP (Tolerable) | Manage by routine procedures; monitor |
5x5 | 2 | Minor (first aid injury / minor property damage < $10K) | 3 | Possible | 6 | Medium | ALARP (Tolerable) | Moderate priority; consider additional controls; supervisor responsibility |
5x5 | 2 | Minor (first aid injury / minor property damage < $10K) | 4 | Likely | 8 | High | ALARP (Tolerable) | Senior management attention required; implement additional controls |
5x5 | 2 | Minor (first aid injury / minor property damage < $10K) | 5 | Almost Certain | 10 | High | ALARP (Tolerable) | Urgent attention; additional controls required before continuation |
5x5 | 3 | Moderate (medical treatment / significant damage $10K-$100K) | 1 | Rare | 3 | Low | Broadly Acceptable | Manage by routine procedures |
5x5 | 3 | Moderate (medical treatment / significant damage $10K-$100K) | 2 | Unlikely | 6 | Medium | ALARP (Tolerable) | Moderate priority; specify controls; management responsibility |
5x5 | 3 | Moderate (medical treatment / significant damage $10K-$100K) | 3 | Possible | 9 | High | ALARP (Tolerable) | Senior management attention; additional controls required; implement within defined timescale |
5x5 | 3 | Moderate (medical treatment / significant damage $10K-$100K) | 4 | Likely | 12 | High | ALARP (Tolerable) | Urgent additional controls required; escalate to senior management |
5x5 | 3 | Moderate (medical treatment / significant damage $10K-$100K) | 5 | Almost Certain | 15 | Very High | Intolerable | Stop activity; work must not continue until risk is reduced to ALARP |
5x5 | 4 | Major (serious injury / LTI / significant damage $100K-$1M) | 1 | Rare | 4 | Low | ALARP (Tolerable) | Manage by specific procedures; ensure effective controls exist |
5x5 | 4 | Major (serious injury / LTI / significant damage $100K-$1M) | 2 | Unlikely | 8 | High | ALARP (Tolerable) | Senior management attention; additional controls required within defined timescale |
5x5 | 4 | Major (serious injury / LTI / significant damage $100K-$1M) | 3 | Possible | 12 | High | ALARP (Tolerable) | Urgent; senior management action; must reduce risk as a priority |
5x5 | 4 | Major (serious injury / LTI / significant damage $100K-$1M) | 4 | Likely | 16 | Very High | Intolerable | Stop activity; extensive risk reduction required before resuming |
5x5 | 4 | Major (serious injury / LTI / significant damage $100K-$1M) | 5 | Almost Certain | 20 | Very High | Intolerable | Prohibit activity; fundamental redesign or alternative method required |
5x5 | 5 | Catastrophic (fatality or multiple fatalities / damage >$1M) | 1 | Rare | 5 | Medium | ALARP (Tolerable) | Senior management attention; ALARP demonstration required; monitor controls closely |
5x5 | 5 | Catastrophic (fatality or multiple fatalities / damage >$1M) | 2 | Unlikely | 10 | High | ALARP (Tolerable) | Urgent additional controls required; ALARP demonstration; escalate to management |
5x5 | 5 | Catastrophic (fatality or multiple fatalities / damage >$1M) | 3 | Possible | 15 | Very High | Intolerable | Stop activity; work must not proceed without fundamental control improvement |
5x5 | 5 | Catastrophic (fatality or multiple fatalities / damage >$1M) | 4 | Likely | 20 | Very High | Intolerable | Prohibit activity; Executive / Board level decision required to proceed |
5x5 | 5 | Catastrophic (fatality or multiple fatalities / damage >$1M) | 5 | Almost Certain | 25 | Very High | Intolerable | Prohibit absolutely; activity cannot be performed at present design / method |
4x4 | 1 | Low severity (no / minor injury — first aid; negligible damage) | 1 | Improbable (not expected to occur — once in 10+ years) | 1 | Very Low | Broadly Acceptable | No immediate action; existing controls adequate |
4x4 | 1 | Low severity (no / minor injury — first aid; negligible damage) | 2 | Remote (occurs rarely — once in 5-10 years) | 2 | Very Low | Broadly Acceptable | Low priority; record and monitor |
4x4 | 1 | Low severity (no / minor injury — first aid; negligible damage) | 3 | Occasional (occurs from time to time — once in 1-5 years) | 3 | Low | ALARP (Tolerable) | Manage by routine procedure; verify controls |
4x4 | 1 | Low severity (no / minor injury — first aid; negligible damage) | 4 | Probable (expected to occur — more than once per year) | 4 | Medium | ALARP (Tolerable) | Management attention; consider additional controls |
4x4 | 2 | Medium severity (medical treatment; significant damage < $100K) | 1 | Improbable | 2 | Very Low | Broadly Acceptable | Low priority; manage by routine procedure |
4x4 | 2 | Medium severity (medical treatment; significant damage < $100K) | 2 | Remote | 4 | Medium | ALARP (Tolerable) | Moderate priority; management review; additional controls may be needed |
4x4 | 2 | Medium severity (medical treatment; significant damage < $100K) | 3 | Occasional | 6 | High | ALARP (Tolerable) | Management action required; additional controls within defined timeframe |
4x4 | 2 | Medium severity (medical treatment; significant damage < $100K) | 4 | Probable | 8 | High | ALARP (Tolerable) | Urgent; senior management attention; priority risk reduction |
4x4 | 3 | High severity (serious injury / LTI; major damage $100K-$1M) | 1 | Improbable | 3 | Low | ALARP (Tolerable) | Management review; ensure ALARP; verify barriers are effective |
4x4 | 3 | High severity (serious injury / LTI; major damage $100K-$1M) | 2 | Remote | 6 | High | ALARP (Tolerable) | Senior management attention; additional controls required; ALARP demonstration |
4x4 | 3 | High severity (serious injury / LTI; major damage $100K-$1M) | 3 | Occasional | 9 | Very High | Intolerable | Stop task; implement immediate risk reduction; executive sign-off to resume |
4x4 | 3 | High severity (serious injury / LTI; major damage $100K-$1M) | 4 | Probable | 12 | Very High | Intolerable | Prohibit activity; fundamental control improvement required |
4x4 | 4 | Catastrophic (fatality or multiple fatalities; damage >$1M) | 1 | Improbable | 4 | Medium | ALARP (Tolerable) | Senior management attention; ALARP demonstration required; escalate |
4x4 | 4 | Catastrophic (fatality or multiple fatalities; damage >$1M) | 2 | Remote | 8 | High | ALARP (Tolerable) | Urgent; additional risk controls required; ALARP demonstration; executive awareness |
4x4 | 4 | Catastrophic (fatality or multiple fatalities; damage >$1M) | 3 | Occasional | 12 | Very High | Intolerable | Stop activity; executive / board decision required before resuming |
4x4 | 4 | Catastrophic (fatality or multiple fatalities; damage >$1M) | 4 | Probable | 16 | Very High | Intolerable | Prohibit absolutely; activity must not proceed |
3x3 | 1 | Low (minor injury / near miss; negligible damage) | 1 | Low probability (unlikely in normal operations) | 1 | Low | Broadly Acceptable | Acceptable risk; existing controls adequate; note for review |
3x3 | 1 | Low (minor injury / near miss; negligible damage) | 2 | Medium probability (reasonably foreseeable) | 2 | Low | Broadly Acceptable | Low priority; monitor; confirm controls in place |
3x3 | 1 | Low (minor injury / near miss; negligible damage) | 3 | High probability (likely to occur) | 3 | Medium | ALARP (Tolerable) | Moderate priority; management attention; additional controls to be considered |
3x3 | 2 | Medium (medical treatment / significant injury; moderate damage) | 1 | Low probability | 2 | Low | Broadly Acceptable | Low priority; manage by specific procedure; review controls |
3x3 | 2 | Medium (medical treatment / significant injury; moderate damage) | 2 | Medium probability | 4 | High | ALARP (Tolerable) | Management attention required; additional controls within defined timeframe |
3x3 | 2 | Medium (medical treatment / significant injury; moderate damage) | 3 | High probability | 6 | High | ALARP (Tolerable) | Urgent; senior management action; priority risk reduction required |
3x3 | 3 | High (fatality or serious injury; major damage) | 1 | Low probability | 3 | Medium | ALARP (Tolerable) | Management attention; ALARP review; ensure barriers are robust |
3x3 | 3 | High (fatality or serious injury; major damage) | 2 | Medium probability | 6 | High | ALARP (Tolerable) | Urgent; senior management action; additional controls; ALARP demonstration |
3x3 | 3 | High (fatality or serious injury; major damage) | 3 | High probability | 9 | Very High | Intolerable | Stop activity immediately; executive approval required; fundamental redesign |
Risk Matrix Reference 2026 — 5x5, 4x4, and 3x3 with ALARP Zones
Fully populated risk matrices in 5x5 (25 cells), 4x4 (16 cells), and 3x3 (9 cells) configurations. Each cell: severity level + descriptor, likelihood level + descriptor, risk score, risk band (Very Low / Low / Medium / High / Very High), ALARP zone (Broadly Acceptable / Tolerable / Intolerable), and recommended management action. Follows ISO 31000, UK HSE five-step, and IOGP ALARP conventions.
Dataset details
- Publisher: SmartQHSE Ltd (https://www.smartqhse.com)
- License: CC BY 4.0 -- please cite with link to https://www.smartqhse.com
- Format: CSV (UTF-8)
- Schema: see data.csv first row (header)
- DOI: 10.5281/zenodo.20171695 -- permanent Zenodo citation
- Update cadence: annual or on regulatory change
- Canonical home: https://www.smartqhse.com/datasets
Suggested citation
SmartQHSE Ltd (2026). Risk Matrix Reference 2026 — 5x5, 4x4, and 3x3 with ALARP Zones [dataset]. Zenodo. https://doi.org/10.5281/zenodo.20171695
Related SmartQHSE resources
- SmartQHSE platform -- full QHSE software with ARIA AI assistant
- Open datasets catalog
- Companion full-text corpus (LLM-optimised SmartQHSE knowledge base)
Disclaimer
This dataset is published for reference, training, and research. Regulatory text and action levels are summarised; consult the authoritative source listed before basing operational or compliance decisions on this dataset. SmartQHSE Ltd accepts no liability for errors or omissions.
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