Evaluation Of Risk Flashcards
Incidence Rate
New cases relation to number at risk
Injuries x 1000
/
Average persons employed
Usually over a year
Frequency rate
Injuries x 100,000
/
Man hours worked
Accidents per 100k hours
Severity rate
Days lost x 1000
/
Hours worked
Days lost per 1000hours worked it
External sources for carrying out risk assessment
HSE Annual Report Labour force survey Accident reports Absence records Industry sources Trade unions Insurance companies ILO
Limitations of external sources
Different definitions Information limited Misleading Cultural differences Diff risk levels
HSG65?
Effective risk Assessment
Plan- Appraisal
Where, what achieve, measured
Do- create the RA
Risk profile, assess risk, who at risk, involve them and communicate, implement, train
Check -
Measure, investigate
Act -
Review, learn from accidents, revisit plans and documents
Explain FTA
Starts with Top event
Acknowledges multi causal
Traces events that could cause accident
Factors affecting control measures
Practicality Legal Competence Effectiveness of control Cost Applicability Long term vs short term Government Regulators Industry Management/staff
Improve system reliability
Use reliable components Quality assurance- checks on quality Parallel redundancy- additional components Standby systems - redundancy Auto shut offs Preventative maintenance Minimise human error
Explain ETA
Start with initiating event
Look at consequences through failure of control measures
Factors to produce suitable and sufficient RA
Reg 3 MHSWR!!! Identify significant risk Proportionate Ignore insignificant risks Competent person Consider everyone (public) Good sources Appropriate to work Time period valid
Internal sources for RA
Accident reports (hazards)
Near miss reports (hazards)
I’ll health data (Health risks and Hazards)
Maintenance and inspection reports (Reliability and Hazards)
Audits (Reliability of CMs)
Training records (Evaluate the risks)
Employee knowledge (effectiveness of Controls)
Existing RAs (Hazards and Risk Controls)
