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Work-related road safety: an analysis based on U.K. bus driver performance
Lisa Dorn1, Anders af Wåhlberg
1Department of Human Factors, Cranfield University, Cranfield, Bedfordshire, UK.
Risk Analysis : an Official Publication of the Society for Risk Analysis
|February 29, 2008
Summary
Bus driver safety improves most with experience in the first year. While age impacts accident risk, especially for young and old drivers, experience is a stronger initial factor in preventing crashes.
Area of Science:
- Occupational Safety
- Transportation Safety
- Human Factors in Driving
Background:
- Accident involvement is a critical concern for bus operators.
- Understanding the interplay of driver age and experience is vital for safety.
- The initial years of operation represent a key period for safety development.
Purpose of the Study:
- To investigate the distinct effects of age and experience on bus driver accident involvement.
- To specifically analyze the impact of early driving experience on accident rates.
- To compare direct and indirect methods for assessing these effects.
Main Methods:
- Employed direct calculation methods to correlate age and experience with accidents.
- Utilized a quasi-induced exposure method (indirect method) analyzing accident culpability ratios.
- Compared results from both methods using overlapping population samples.
Main Results:
- Driver experience significantly reduced accident involvement, particularly within the first year.
- Age demonstrated a U-shaped association with accidents; younger and older drivers had higher rates.
- The influence of age on accident risk became more pronounced after the initial years of experience.
Conclusions:
- Initial driving experience is a more critical factor than age for bus driver safety.
- The impact of experience diminishes significantly after two to three years.
- Age remains a factor in accident risk, though its predictive power for bus drivers is weak.
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