Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/49077
Type: Conference paper
Title: Evaluation of the Adelaide Hills speed limit change from 100 km/h to 80 km/h
Author: Long, A.
Hutchinson, T.
Citation: Proceedings 2008 Australasian Road Safety Research, Policing and Education Conference
Publisher: University of Adelaide
Publisher Place: CD
Issue Date: 2008
ISBN: 1876346566
Conference Name: Australasian Road Safety Research, Policing and Education Conference (2008 : Adelaide, Australia)
Organisation: Centre for Automotive Safety Research (CASR)
Statement of
Responsibility: 
Long, A. D., Hutchinson, T. P.
Abstract: In January 2002 the speed limit was changed from 100 km/h to 80 km/h on 18 arterial roads in the Adelaide Hills area. An analysis has been conducted of the effect that these changes had on the number of casualty crashes and casualties occurring on these roads: the periods of five years before and five years after the changes have been compared. Different methods of evaluation were considered, some involving a control group and others not. Depending on which is chosen, the effect is between 3 per cent and 36 per cent reduction in casualty crashes, with 15 per cent (not statistically significant) being our preferred estimate.
Keywords: Speed limit; Crash reduction; Adelaide Hills; Before-and-after
Rights: © 2008 the authors
RMID: 0020085111
Appears in Collections:Centre for Automotive Safety Research conference papers

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