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"metadata": {
"name": "SmartQHSE HSE Incident Rate Formulas",
"description": "Reference dataset of standard occupational-safety incident-rate formulas (TRIR, LTIFR, DART, AFR, Severity Rate, TRIFR, LTIR) with multipliers, inputs, jurisdictions, authoritative sources, worked examples, and current industry benchmarks. Pairs with the SmartQHSE/hse-incident-rate-calculator HF Space.",
"publisher": "SmartQHSE Ltd",
"license": "CC BY 4.0",
"license_url": "https://creativecommons.org/licenses/by/4.0/",
"cite_as": "SmartQHSE Ltd (2026). HSE Incident Rate Formulas Reference [dataset]. https://huggingface.co/datasets/SmartQHSE/hse-incident-rate-formulas",
"canonical_page": "https://www.smartqhse.com/hse-statistics",
"hf_space": "https://huggingface.co/spaces/SmartQHSE/hse-incident-rate-calculator",
"collection": "https://huggingface.co/collections/SmartQHSE/smartqhse-open-hse-data-69f7597712196f8018c2dab5",
"rows": 7,
"last_updated": "2026-05-08"
},
"data": [
{
"id": "trir",
"name": "TRIR",
"full_name": "OSHA Total Recordable Incident Rate",
"formula": "TRIR = (recordable cases × 200000) / total hours worked",
"multiplier": 200000,
"multiplier_meaning": "200000 ≈ 100 employees × 40 hr/wk × 50 wk/yr — the OSHA standard exposure base",
"inputs": [
"recordable cases (OSHA 29 CFR 1904.7)",
"total hours worked"
],
"output_unit": "cases per 100 full-time employees per year",
"jurisdiction": "United States",
"authority": "OSHA",
"source": "29 CFR 1904",
"source_url": "https://www.osha.gov/recordkeeping",
"example": {
"recordable_cases": 3,
"hours": 500000,
"result": 1.2
},
"benchmarks_2024": {
"us_private_industry": 2.7,
"construction": 2.5,
"mining": 1.7,
"manufacturing": 2.8,
"healthcare": 4.7,
"retail": 2.6
},
"related_pages": [
"https://www.smartqhse.com/trir-calculator",
"https://www.smartqhse.com/safety-blog/ltir-vs-trir-vs-ltifr-differences"
]
},
{
"id": "ltifr",
"name": "LTIFR",
"full_name": "Lost Time Injury Frequency Rate",
"formula": "LTIFR = (LTI cases × 1000000) / total hours worked",
"multiplier": 1000000,
"multiplier_meaning": "Per million hours worked — international ILO/HSE standard",
"inputs": [
"lost time injuries (>1 day away from work)",
"total hours worked"
],
"output_unit": "lost-time injuries per million hours",
"jurisdiction": "International (ILO/UK/GCC/AU)",
"authority": "ILO, UK HSE",
"source": "ILO 16th ICLS Resolution III",
"source_url": "https://www.ilo.org/global/statistics-and-databases/lang--en/index.htm",
"example": {
"lti_cases": 2,
"hours": 500000,
"result": 4
},
"benchmarks_2024": {
"uk_all_industries": 1,
"gcc_oil_gas_iogp": 0.6,
"uae_construction_oshad": 3,
"australia_mining": 2.5
},
"related_pages": [
"https://www.smartqhse.com/safety-blog/ltir-vs-trir-vs-ltifr-differences"
]
},
{
"id": "dart",
"name": "DART",
"full_name": "Days Away, Restricted, or Transferred Rate",
"formula": "DART = (DART cases × 200000) / total hours worked",
"multiplier": 200000,
"multiplier_meaning": "Same OSHA 200000 base as TRIR; subset (cases with days away or job transfer/restriction)",
"inputs": [
"DART cases per OSHA 29 CFR 1904.7",
"total hours worked"
],
"output_unit": "DART cases per 100 full-time employees per year",
"jurisdiction": "United States",
"authority": "OSHA",
"source": "29 CFR 1904.7",
"source_url": "https://www.osha.gov/recordkeeping/RKforms.html",
"example": {
"dart_cases": 2,
"hours": 500000,
"result": 0.8
},
"benchmarks_2024": {
"us_private_industry": 1.7
},
"related_pages": [
"https://www.smartqhse.com/dart-rate-calculator"
]
},
{
"id": "afr",
"name": "AFR",
"full_name": "Accident Frequency Rate",
"formula": "AFR = (accidents × 1000000) / total hours worked",
"multiplier": 1000000,
"multiplier_meaning": "Per million hours; broader than OSHA recordable. Common UK HSE / GCC default",
"inputs": [
"accidents (definition varies; often any reportable incident)",
"total hours worked"
],
"output_unit": "accidents per million hours",
"jurisdiction": "United Kingdom, GCC, generic",
"authority": "UK HSE",
"source": "HSE Methods Statement",
"source_url": "https://www.hse.gov.uk/statistics/sources.htm",
"example": {
"accidents": 5,
"hours": 500000,
"result": 10
},
"related_pages": [
"https://www.smartqhse.com/afr-calculator",
"https://www.smartqhse.com/frequency-rate-calculator"
]
},
{
"id": "severity_rate",
"name": "Severity Rate",
"full_name": "Severity Rate (days lost per million hours)",
"formula": "Severity = (days lost × 1000000) / total hours worked",
"multiplier": 1000000,
"multiplier_meaning": "Per million hours — a measure of how serious injuries are on average",
"inputs": [
"total days lost (sum across all LTI cases)",
"total hours worked"
],
"output_unit": "days lost per million hours",
"jurisdiction": "International (ILO)",
"authority": "ILO",
"source": "ILO 16th ICLS Resolution III",
"source_url": "https://www.ilo.org/global/statistics-and-databases/lang--en/index.htm",
"example": {
"days_lost": 40,
"hours": 500000,
"result": 80
},
"related_pages": [
"https://www.smartqhse.com/severity-rate-calculator"
]
},
{
"id": "trifr",
"name": "TRIFR",
"full_name": "Total Recordable Injury Frequency Rate",
"formula": "TRIFR = (recordable injuries × 1000000) / total hours worked",
"multiplier": 1000000,
"multiplier_meaning": "Same numerator as TRIR but per-million-hours basis (Australian / IOGP standard)",
"inputs": [
"recordable injuries",
"total hours worked"
],
"output_unit": "recordable injuries per million hours",
"jurisdiction": "Australia, NZ, IOGP global oil & gas",
"authority": "Safe Work Australia, IOGP",
"source": "Safe Work Australia WHS Code; IOGP Safety Performance Indicators",
"source_url": "https://www.iogp.org/bookstore/product/iogp-report-2023s-safety-performance-indicators-2022-data/",
"example": {
"recordable_injuries": 3,
"hours": 500000,
"result": 6
},
"benchmarks_2024": {
"iogp_global_oil_gas": 0.83,
"australia_construction": 5.2,
"australia_mining": 2.6
},
"related_pages": [
"https://www.smartqhse.com/safety-blog/ltir-vs-trir-vs-ltifr-differences"
]
},
{
"id": "ltir",
"name": "LTIR",
"full_name": "Lost Time Incident Rate (OSHA basis)",
"formula": "LTIR = (LTI cases × 200000) / total hours worked",
"multiplier": 200000,
"multiplier_meaning": "OSHA-basis equivalent of LTIFR — per 100 FTEs",
"inputs": [
"lost time injuries",
"total hours worked"
],
"output_unit": "LTI per 100 FTE per year",
"jurisdiction": "United States",
"authority": "OSHA",
"source": "29 CFR 1904",
"source_url": "https://www.osha.gov/recordkeeping",
"example": {
"lti_cases": 2,
"hours": 500000,
"result": 0.8
},
"related_pages": [
"https://www.smartqhse.com/ltir-calculator"
]
}
]
} |