Efficacy of proxy definitions for identification of fatigue/sleep-related crashes: An Australian evaluation

Article

Armstrong, Kerry, Filtness, Ashleigh J., Watling, Christopher N., Barraclough, Peter and Haworth, Narelle. 2013. "Efficacy of proxy definitions for identification of fatigue/sleep-related crashes: An Australian evaluation." Transportation Research Part F: Traffic Psychology and Behaviour. 21, pp. 242-252. https://doi.org/10.1016/j.trf.2013.10.002
Article Title

Efficacy of proxy definitions for identification of fatigue/sleep-related crashes: An Australian evaluation

ERA Journal ID6691
Article CategoryArticle
AuthorsArmstrong, Kerry (Author), Filtness, Ashleigh J. (Author), Watling, Christopher N. (Author), Barraclough, Peter (Author) and Haworth, Narelle (Author)
Journal TitleTransportation Research Part F: Traffic Psychology and Behaviour
Journal Citation21, pp. 242-252
Number of Pages11
Year2013
Place of PublicationUnited Kingdom
ISSN1369-8478
1873-5517
Digital Object Identifier (DOI)https://doi.org/10.1016/j.trf.2013.10.002
Web Address (URL)https://www.sciencedirect.com/science/article/pii/S1369847813000983
Abstract

Fatigue/sleepiness is recognised as an important contributory factor in fatal and serious injury road traffic incidents (RTIs), however, identifying fatigue/sleepiness as a causal factor remains an uncertain science. Within Australia attending police officers at a RTI report the causal factors; one option is fatigue/sleepiness. In some Australian jurisdictions police incident databases are subject to post‐hoc analysis using a proxy definition for fatigue/sleepiness. This secondary analysis identifies further RTIs caused by fatigue/sleepiness not initially identified by attending officers. The current study investigates the efficacy of such proxy definitions for attributing fatigue/sleepiness as a RTI causal factor. Over 1,600 Australian drivers were surveyed regarding their experience and involvement in fatigue/sleep‐related RTIs and near‐misses during the past five years. Driving while fatigued/sleepy had been experienced by the majority of participants (66.0% of participants). Fatigue/sleep‐related near misses were reported by 19.1% of participants, with 2.4% being involved in a fatigue/sleep‐related RTI. Examination of the characteristics for the most recent event (either a near miss or crash) found that the largest proportion of incidents (28.0%) occurred when commuting to or from work, followed by social activities (25.1%), holiday travel (19.8%), or for work purposes (10.1%). The fatigue/sleep related RTI and near‐miss experience of a representative sample of Australian drivers does not reflect the proxy definitions used for fatigue/sleepiness identification. In particular those RTIs that occur in urban areas and at slow speeds may not be identified. While important to have a strategy for identifying fatigue/sleepiness related RTIs proxy measures appear best suited to identifying specific subsets of such RTIs.

KeywordsDriver behaviour, sleep related crash, near miss crash, road traffic incident
ANZSRC Field of Research 2020520402. Decision making
420604. Injury prevention
520501. Community psychology
Public Notes

File reproduced in accordance with the copyright policy of the publisher/author.

Byline AffiliationsQueensland University of Technology
Institution of OriginUniversity of Southern Queensland
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