Reducing Crash Risk: A Review of Recent Research, Dr Lisa Dorn, DriverMetrics
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Transcript of Reducing Crash Risk: A Review of Recent Research, Dr Lisa Dorn, DriverMetrics
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Reducing Fleet Crash Risk:A Review of Recent Research
Dr Lisa Dorn
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Literature Review
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Recent Data• United Nations General Assembly - Decade of Action
• 1.3m die each year and projected to double by 2030• 20m injured each year
• Road traffic crashes biggest cause of work-related death and injury• 14 people killed a week and 160 seriously injured (DfT, 2009)• 70-100,000 non-fatal work-related road traffic crashes each year
(The Labour Force Survey 2010)• 52,806 drivers/riders became casualties in at-work journeys (DfT, 2011) • 30-40,000 crashes cause more than 3 days absence
(The Labour Force Survey 2010)
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• Driver skill improves with practice - automation of information processing and psychomotor skill
• In-vehicle driver training• Driver behaviour motives,
habits and driving style - may become less worried about safety over time
• Behaviour-based approach
Driver Skills and Driver Behaviour
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Behaviour and the Brain
• All behaviour is an output from the brain • Billions of neurons connected via trillions of synapses• 11 million sensations zip down the neural pathways per
sec• 40 sensations delivered to conscious awareness per sec
http://www.youtube.com/watch?v=90cj4NX87Yk
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The Brain and Behaviour
https://www.youtube.com/watch?v=kZ1QXSn_cfU
• Our reality is a construction • Sensory impressions, stored memories, personality and
emotional assessments• Bayes theory - probability of future event calculated based on
past events and constantly updating • Signals decay - important hypothesis may disappear before the
next prediction made• Attention drifts in unusual ways - shifting from one thought and
hypothesis to another
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FDRI Factors
Situational RiskAge, driving experience, mileage, licence, crash history etc
Behavioural Risk FactorsWork Related Risk
Aggression Hazard Monitoring Driving Excitement
Driving Fatigue
Driver Coping StylesDriving FocusConfrontation
Driving ConcernsSelf Evaluation
Correction FactorsImpression Management
Driver Confidence
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Driver Behaviour at Work
• Risky driving – e.g. speeding, tailgating, cutting up, lane weaving, running red lights
• Distracted, inattentive and impaired driving –improper lookout, mobile phone use, fatigue
• What is motivating this behaviour at work?
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• Work demands• Unfavourable ratio between quantity of available
time and quantity of time needed to reach destination
• 3 Cranfield studies on time pressure• Drivers in a hurry almost 8 times more likely to be
impatient drivers (Beck et al, 2012)
Time Pressure
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• Taking risks under time pressure seen as inevitable
• Driver stress, ineffective coping and fatigue
• Strongly correlated with (n=334) :-• Aggression (r=.34, p <.001)
• Thrill Seeking (r=.47, p < .001)
• Confrontive Coping (r=.40, p <.001)
• Emotion focused Coping (r=.36, p <.001)
• Driving Fatigue Resistance (r= -.39, p < .001)
• Task Focus Coping (r= - .30, p <.001)
Dorn and Gandolfi (2008)
Self Reported Time Pressure
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• BDRI maladaptive coping strategies linked with driving
performance decrements under time pressure
• Forceful drivers drive even more forcefully under time
pressure
Dorn et al (2010)
Induced Time Pressure
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Time Pressure and Time Delays
Group of Pedestrians (GP), Priority to Right (PR), Information Request (IR), Traffic Jam (TJ), Alternating Traffic Light (ATL), Urban Traffic Light (UTL), Delivery Van block (DV) and Disabled Person crossing (DP)
• Induced time pressure
• Effects of time pressure
contextual and/or chronic
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Time Pressure Summary
Time pressure interaction between person and situation and linked to: • work-related attentional focus• risky driving• Increased crash risk• chronic conditions• Motivating factors (sanctions)
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Organisations and Time Pressure
• Safe travel key business priority for some companies
• Positive safety climate = workload and time pressure
management and fewer errors and violations (Öz, et al, 2013)
• Integration - consider whether you have the following covered:• Policy
• Responsibility
• Organisation
• Systems
• Monitoring
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Behaviour-based Interventions
• Workshops to self reflect on driver stress (FDRI)
• Clock time (real time) Vs Imaginary time (depends on forward and backward thoughts )
• Peer to peer - common decisions about future behaviour
• Commitment to change and follow-up
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Thank You