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Older driver distraction: a naturalistic study of behaviour at intersections
Judith L Charlton1, Matthew Catchlove, Michelle Scully
1Monash University Accident Research Centre (MUARC), Building 70, Clayton, VIC 3800, Australia. judith.charlton@monash.edu
Accident; Analysis and Prevention
|January 22, 2013
Summary
Older drivers reduce distracting behaviors at complex intersections. They self-regulate secondary activities, engaging less when driving is more challenging.
Area of Science:
- Gerontology
- Human Factors Engineering
- Traffic Safety
Background:
- Older drivers (65-83 years) were studied to understand engagement in secondary activities at intersections.
- Naturalistic driving data from Melbourne, Australia, was utilized.
- Factors influencing distraction, such as driver demographics and situational variables, were examined.
Purpose of the Study:
- To investigate older driver engagement in secondary activities at intersections.
- To determine if intersection complexity influences distraction.
- To analyze the relationship between secondary task engagement, vehicle status, and driving environment.
Main Methods:
- Utilized naturalistic driving data from 200 intersection maneuvers of older drivers.
- Instrumented vehicles recorded driver behavior and environmental data.
- Functional abilities were assessed using tests like Useful Field of View (UFOV).
Main Results:
- Secondary activities included grooming (42.5%), talking/singing (30.2%), and panel manipulation (12.2%).
- Distractions like reading and panel manipulation were linked to longer off-road glances and hands off the wheel.
- Intersection complexity, vehicle status (moving/stationary), and traffic density significantly affected secondary activity engagement.
Conclusions:
- Older drivers selectively engage in secondary activities based on driving situation.
- Drivers appear to self-regulate, reducing distractions during more challenging maneuvers.
- Findings support the concept of adaptive driving behavior in older adults.
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