RISK SCORE CALCULATOR Use the Risk Score Calculator to Determine the Level of Risk of each Hazard What would be the CONSEQUENCE of an occurrence be? What is the LIKELIHOOD of an occurrence? Hierarchy of Controls Frequent/Almost certain (5) Continuous or will happen frequently Often (4) 6 to 12 times a year Likely (3) 1 to 5 times a year Possible (2) Once every 5 years Rarely (1) Less than once every 5 years Can the hazard be Eliminated or removed from the work place? Catastrophic (5) Multiple Fatalities High 25 High 20 High 15 Medium 10 Medium 5 Can the product or process be substituted for a less hazardous alternative? Serious (4) Class 1 single fatality High 20 High 16 High 12 Medium 8 Low 4 Can the hazard be engineered away with guards or barriers? Moderate (3) Class2 (AWI or LTI) or Class 1 Permanently disabling effects High 15 High 12 Medium 9 Medium 6 Low 3 Can Administration Controls be adopted I.e. procedures, job rotation etc. Minor (2) Medical attention needed, no work restrictions. MTI Medium10 Medium 8 Medium 6 Low 4 Low 2 Can Personal Protective Equipment & Clothing be worn to safe guard against hazards? Insignificant (1) FAI Medium10 Medium 4 Low 3 Low 2 Low 1 Project Name: xxx RA Ref No.: xxx RA compilation Date: Review date: Date: Compiled by: Reviewed by: Approved by: Overall Task Details Trial Trenches on site to locate/expose underground services. Use of excavator Note: Wherever practicable trial trenches shall be hand dug to expose cables Classed as Temporary Works Relevant Applicable MAS: • 00246 – Excavations; • 01413 – Underground services; • 00940 – Plant Operators. Additional Training required: Temporary Works Coordinator to be designated NOC’s Required for task: Dubai Municipality No Specific Task Step (In sequence of works) Hazard Details Consequence/Risk Initial Risk Rating Control Measures Residual Risks Additional Control Measures RR P S RR 1 Planned shallow Excavation (Trial Trench) in areas where live services may be present including: • Electrical; • Water; • Sewerage; • Gas; • Telecoms; PRIOR TO WORKS • Presence of live underground services; • Services not in area specified on drawings; • Heavy plant or vehicles accessing work area; • Presence of unmarked services; • Risk of explosion due to gas line rupture; • Risk of flooding of trenches and adjacent areas due to water main damage; • Risk of electrocution or fire due to cable strike; • Risk of hazardous waste entering trenches or water systems due to live sewerage damage; • Risk of damage to low depth underground services from heavy vehicles; • Risk of vehicles / Plant entering open trenches; 4 3 12 HIGH i. All existing utility service drawings reviewed for known service details and position; ii. NOC and Utility provider and ATC Excavation permits to be completed, unique number added and recorded in log; iii. Work Area, including access route for plant, to be CAT scanned to locate exact position of service by competent per