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Type: Conference paper
Title: Exposure to risk on the roads
Author: Hutchinson, T.
Wundersitz, L.
Anderson, R.
Kloeden, C.
Citation: Proceedings of the 2009 Australasian Road Safety Research, Policing & Education Conference, 2009: pp.190-200
Publisher: RTA New South Wales
Publisher Place: USB
Issue Date: 2009
ISBN: 9781921692260
Conference Name: Australasian Road Safety Research, Policing & Education Conference (2009 : Sydney, Australia)
Organisation: Centre for Automotive Safety Research (CASR)
Statement of
Hutchinson, T. P.; Wundersitz, L. N.; Anderson, R. W. G.; and Kloeden, C. N.
Abstract: The concept of “exposure” to risk is used in the context that number of crashes is the product of exposure to risk and the rate of crashes per unit of exposure. In a practical sense, exposure refers to quantities such as distance travelled, time spent travelling, or number of vehicles passing a point. Comparison of crash rates of different groups of people, different types of vehicle, different roads, different environmental conditions, and so on, may be desired. This paper will examine vehicle registration data, counts of vehicles, surveys of vehicle use, and what is termed induced exposure that attempts to infer risk by distinguishing between crashes in which a party is “innocent” or “responsible”. The concept of exposure has not yet achieved all that has been wished for in road safety research, because of problems with both the concept and its practical measurement. However, new technology offers considerable potential.
Keywords: Crash rates; Exposure; Risk; Vehicle registrations; Traffic flows; Travel surveys
Rights: © 2009 T.P. Hutchinson et al.
RMID: 0020094863
Published version:
Appears in Collections:Centre for Automotive Safety Research publications

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