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The development and validation of two complementary measures of drivers' hazard perception ability
M A Wetton1, M S Horswill, C Hatherly
1School of Psychology, University of Queensland, St Lucia, Brisbane, Queensland, Australia. m.wetton@psy.uq.edu.au
Accident; Analysis and Prevention
|May 6, 2010
Summary
This study developed two driving hazard perception tests. The Hazard Perception Test is valid for all ages, while the Hazard Change Detection Task is best for older drivers.
Area of Science:
- Psychology
- Human Factors
- Traffic Safety
Background:
- Hazard perception is crucial for safe driving, involving multiple cognitive processes.
- Existing measures may not adequately differentiate these underlying processes.
- Understanding age-related differences in hazard perception is vital for road safety.
Purpose of the Study:
- To develop and validate two new measures of driving hazard perception.
- To differentiate between overall hazard anticipation and simple hazard detection.
- To examine the performance of these measures across different age groups and driving experience levels.
Main Methods:
- Development of a Hazard Perception Test (HPT) for overall hazard anticipation.
- Development of a Hazard Change Detection Task (HCDT) for static hazard detection.
- Testing of both measures in young novice drivers, mid-age experienced drivers, and drivers aged 65+.
- Correlation of test performance with crash risk data, contrast sensitivity, and Useful Field of View (UFOV).
Main Results:
- The HPT showed younger novices were slower than experienced drivers, aligning with crash risk.
- HPT performance in older adults declined with age and correlated with contrast sensitivity and UFOV.
- The HCDT showed novices were quicker than experienced drivers, contrary to crash risk trends.
- HCDT performance in older adults also declined with age and correlated with hazard perception and UFOV.
Conclusions:
- The Hazard Perception Test demonstrates validity across all tested age groups.
- The Hazard Change Detection Task appears more suitable for assessing older drivers.
- Differentiated measures of hazard perception are valuable for understanding driving capabilities across the lifespan.
