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Health and Safety Seminars 2014 RISK ASSESSMENT VS HAZARDS & EFFECTS ANALYSIS
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The meaning of ……………. RISK "risk" means the probability that injury or damage will occur (OHS Act) Risk = Severity X Likelihood (of consequences) HAZARDS and EFFECTS (Consequences) "hazard" means a source of or exposure to danger (OHS Act) A Hazard can be anything that has the potential to cause harm to people, the environment, property, plant, products, reputation, etc. A Consequence can be defined as an unwanted event (or events) resulting from the “release “ of a Hazard.
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Legal duties GENERAL DUTIES …….. Sections 8, 9, 10, 11, 12 & 13 SPECIFIC DUTIES ……… ( Found in various regulations) Construction Regulations embody most explicit duties Assessments must be performed by a “competent person” appointed in writing [CR 9.1] Project baseline risk assessment [CR 5.1(a)] HAZID [CR 9.1(a)] Hazard analysis and evaluation based on a documented method [CR 9.1(b)] i.e. Hazards and Effects Management Process (HEMP) Documented plan including applicable SWP [CR 9.1 & 9.1.(c)] Monitoring plan [CR 9.1(d)] Review plan [CR 9.1(e) Ergonomic hazards must be included [CR 9.2]
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Assessment types Baseline Risk Assessment [BRA] Issue based (Detailed - hazard/process/activity/task specific) Continuous (MOC/Inspections/audits/task observations/occupational hygiene measurements, etc) Specialised (HAZOP/FMEA/HRA/FTA, etc.)
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Baseline Risk Assessment Objectives and purpose Establish a risk profile to prioritise action programmes for issue-based hazards and effects analysis Focus is on the identification of hazards and risk rating that applies to the whole organisation or project Foundation for Client H&S Specifications in construction activities Must be sufficiently comprehensive to determine/demonstrate the need for further detailed hazards and effects analysis
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Suggested process for BRA 1.HAZID using a master hazard checklist Hazard checklistHazard checklist 2.Identify/define potential consequences (Credible worst case scenarios) 3.Rate (classify) risk using a Risk Assessment Matrix RAMRAM 4.Define/list generic threats and controls (Pro-active and reactive) 5.Define/list documentation required to demonstrate compliance 6.Record results in table of hazards and effects HE TableHE Table
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Risk classification (Rating) CONSEQUENCEINCREASING LIKELIHOOD SEVERITY People Assets Environm e nt Reputation ABCDE Never heard of Occurred in industry Occurred in our industry Occurred several times a year in our company Occurred several times a year on site 0 No injury or health effect No damageNo effectNo impact 1 Slight injury or health effect Slight damageSlight effectSlight impact 2 Minor injury or health effect Minor damageMinor effectMinor impact 3 Major injury or health effect Moderate damage Moderate effect Moderate impact 4 PTD or up to 3 fatalities Major damageMajor effectMajor impact 5 More than 3 fatalities Massive damage Massive effectMassive impact Key Manage for continuous improvement (Low) Incorporate risk additional reduction measures (Medium) Demonstrate ALARP (High)
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Demonstration of control Hazard Control Sheet HCSHCS BowTie Diagram BTABTA
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