Bowtie Risk Management
Master Bowtie analysis to visualise, manage, and communicate major hazards, assess barriers, and support ALARP demonstration and assurance.
Quantitative Risk Assessment (QRA)
Quantitative Risk Assessment (QRA) systematically estimates the likelihood and consequences of hazardous events, including fires, explosions, and toxic releases. QRA provides a robust, data-driven basis for managing safety, environmental, and economic risks in high-hazard industries, supporting ALARP demonstration and informed decision-making.
Service information
- Advise on suitable assumptions and rulesets tailored to site context
- Identify and characterise hazards using HAZID, HAZOP, and desktop methods using design documentation (e.g. P&IDs, PFDs, H&MB)
- Use consequence modelling to predict the physical effects of hazardous releases and events
- Determine event frequencies using fault tree analysis, event trees, and historical failure data where appropriate
- Develop geographic risk profiles and risk contours to visualise risk distribution within the facility and surrounding areas
- Quantify individual risk per annum (IRPA), potential loss of life (PLL), and societal risk using metrics
- Apply risk matrices and tolerability criteria to evaluate safety, environmental, and economic risks
- Interrogate results to identify key risk drivers and potential improvements
- Perform cost-benefit analyses to support ALARP assessments, referencing HSE ALARP guidance
- Conduct sensitivity studies and uncertainty analyses to understand cliff-edge effects and model robustness
- Address facility siting risks, including occupied building risk assessment (OBRA) and land use planning
- Apply industry standard QRA software such as SAFETI, RISKCURVES and SHEPHERD
- Provide bespoke web-based data visualisation and reporting to support decision-making, aligned with regulator and stakeholder expectations
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