Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/36454
Type: Report
Title: Evaluation of the South Australian default 50 km/h speed limit
Author: Kloeden, Craig Norman
Woolley, Jeremy Edwards
McLean, Jack
Publisher: Centre for Automotive Safety Research
Issue Date: 2004
Series/Report no.: CASR Report Series : CASR005
ISBN: 1920947043
ISSN: 1449-2237
School/Discipline: Centre for Automotive Safety Research (CASR)
Statement of
Responsibility: 
C.N. Kloeden, J.E. Woolley and A.J. McLean
Abstract: On 1 March 2003 the default urban speed limit in South Australia was reduced from 60 km/h to 50 km/h. On-road speeds just before the default limit was introduced were compared with speeds a year later. The numbers of casualty crashes and casualties in the year before the default limit was introduced were compared with the corresponding numbers in the first year that the default limit was in effect. On roads where the speed limit was reduced from 60 km/h to 50 km/h, average vehicle speeds decreased by 2.3 km/h and casualties by 24 per cent. On roads where the speed limit remained at 60 km/h, average vehicle speeds decreased by 0.9 km/h and casualties by 7 per cent.
Keywords: Speed limit; Legislation; Accident rate; Before and after study
RMID: 0020065423
Appears in Collections:Centre for Automotive Safety Research reports

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