Signs of driver sleepiness and risky sleepy driving behaviours: the associations with demographic, work and sleep-related factors

Paper

Watling, Christopher N., Armstrong, Kerry A. and Haworth, Narelle. 2015. "Signs of driver sleepiness and risky sleepy driving behaviours: the associations with demographic, work and sleep-related factors." Cameron, I., Haworth, N. and McIntosh, L. (ed.) 2015 Australasian Road Safety Conference (ARSC 2015). Gold Coast, Australia 14 - 16 Oct 2015 Gold Coast, Australia.
Paper/Presentation Title

Signs of driver sleepiness and risky sleepy driving behaviours: the associations with demographic, work and sleep-related factors

Presentation TypePaper
AuthorsWatling, Christopher N. (Author), Armstrong, Kerry A. (Author) and Haworth, Narelle (Author)
EditorsCameron, I., Haworth, N. and McIntosh, L.
Journal or Proceedings TitleProceedings of the 2015 Australasian Road Safety Conference (ARSC 2015)
Number of Pages10
Year2015
Place of PublicationGold Coast, Australia
Web Address (URL) of Paperhttps://acrs.org.au/article/signs-of-driver-sleepiness-and-risky-sleepy-driving-behaviours-the-associations-with-demographic-work-and-sleep-related-factors/
Conference/Event2015 Australasian Road Safety Conference (ARSC 2015)
Event Details
2015 Australasian Road Safety Conference (ARSC 2015)
Event Date
14 to end of 16 Oct 2015
Event Location
Gold Coast, Australia
Abstract

Driving while sleepy is regarded as a substantial crash risk factor. Reducing the risk of sleep-related crashes predominately rests with the driver’s awareness of experiencing signs that are common when sleepy; such as yawning, frequent eye blinks, and difficulty keeping eyes open. However the relationship between the signs of sleepiness and risky sleepy driving behaviours is largely unknown. The current study sought to examine the relationships between drivers’ experiences of the signs of sleepiness, risky sleepy driving behaviours, and the associations with demographic, work and sleep-related factors. In total 1,608 participants completed a questionnaire administered via a telephone interview that assessed their experiences and behaviours of driving while sleepy. The results revealed a number of demographic, work and sleep-related factors were associated with experiencing signs of sleepiness when driving. Signs of sleepiness were also found to mediate the relationship between continuing to drive while sleepy and having a sleep-related close call event. A subgroup analysis based on age (under 30 and 30 years or older) found younger drivers were more likely to continue to drive when sleepy despite experiencing more signs of sleepiness. The results suggest participants had considerable experience with the signs of sleepiness and driving while sleepy. Actions to be taken from this research include informing the content of driver education campaigns regarding the importance of the signs of sleepiness. Working together to educate all drivers about the dangerousness of driving when experiencing signs of sleepiness is an important road safety outcome.

KeywordsDriver Psychology; Human Factors
ANZSRC Field of Research 2020520402. Decision making
420604. Injury prevention
520401. Cognition
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Byline AffiliationsQueensland University of Technology
Institution of OriginUniversity of Southern Queensland
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