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Fatigue & Safety in Mining –A Distraction?. Roger Kahler InterSafe. Fatigue. Impairment of mental and physical function. Hypothesis. Effective Fatigue Management will not significantly alter on-site personal damage – fatal and non-fatal. Frameworks of Thinking. Damage Classification
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Fatigue & Safety in Mining –A Distraction? Roger Kahler InterSafe
Fatigue Impairment of mental and physical function
Hypothesis Effective Fatigue Management will not significantly alter on-site personal damage – fatal and non-fatal
Frameworks of Thinking Damage Classification Pareto Principle (principle of Critical Few) Energy Damages Patterns of Damage Appropriate Models
Framework 1 and 2 Damage Classification & Pareto Principle (80/20 Rule) Permanent Fatal Non Fatal Temporary Minor
Numbers of People Involved in Non-Fatal Permanent Damage Australia (All Industries) 175 / Day
Framework 3 Energy Damages • Damaging Energy Stable Metastable Unstable Damage Recovery / Repair Stable
Framework 4 Pareto Damaging Energies – Fatal and Non-Fatal Permanent Vehicular Gravitational Human
Framework 5 Appropriate Models Egocentric Ergonomic
Framework 5 Appropriate Models Egocentric Safe acts and conditions Unsafe acts and conditions Ergonomic Did/did not Present/Absent
Observations of an Incident Essential Contributory Non Essential
Human Energy – Over-exertion • Training in lift technique? • Fatigue management? • Task Ergonomics? Solve by which strategy -
Gravitational Energy – Fall to Same Level • Watch where you’re walking? • Fatigue Management? • Underfoot surface conditions? Solve by which strategy -
Vehicular Energy – Jolt/Jar/Vibration • Watch where you’re driving? • Fatigue Management? • Road conditions (short term)? • Equipment design (longer term)? Solve by which strategy -
Gravitational Energy – Descend Mobile & Fixed Plant • Training in 3 points of contact? • Fatigue Management? • “Ergonomic” Designs? Solve by which strategy -
Vehicular Energy – Fatal – Over Embankment / Edge • Be Careful? • Fatigue Management? • Some combination of Bunds, Berms, Seatbelts, ROPS, Lighting, Drainage etc. Solve by which strategy -
Proposition Effective Fatigue Management will not significantly alter ‘on site’ personal damage (fatal, non-fatal) Proposition - TRUE
24 Hrs without sleep 20km/hr faster than other traffic 0.08 BAC Driving using mobile phone 16km/hr faster than other traffic 0.05 BAC 17 Hrs without Sleep 8-10km/hr Faster than Other traffic 100km/h 0 Summary of Relative Risk 7 x6 6 5 Relative Risk x4 4 x2 3 2 1 0 25 15 20 -5 0 5 10 -10 Relative Speed (km/h)
Peak Downs Highway(Gregory Development Road – Hazledean)Serious Casualties as a result of 41 crashes – 2004-2008 5 Fatalities 47 Hospitalisations
Age Groups Males & Single Vehicle accidents over-represented Over 24 - 73% Under 24 - 25%
Time of Day Midnight – 6am - 9.6% 6am – Noon - 26.9% Noon – 6pm - 48%
Head On - 17.3% Off Carriageway - 36.5% Other - 46.1%
Closing Comment Fatigue and Health Fatigue and Off-Site Road Incidents (Fatal & Hospital)
THANK YOU THE END