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Type: Report
Title: Reanalysis of travelling speed and the risk of crash involvement in Adelaide South Australia
Author: Kloeden, Craig Norman
McLean, Jack
Glonek, Garique Francis Vladimir
Publisher: Australian Transport Safety Bureau
Issue Date: 2002
Series/Report no.: Road safety research report (Australian Transport Safety Bureau) ; CR207
ISBN: 0642255865
ISSN: 1445-4467
School/Discipline: Centre for Automotive Safety Research (CASR)
School of Mathematical Sciences
Statement of
C.N. Kloeden, A.J. McLean and G. Glonek
Abstract: Modified logistic regression modelling was used to reanalyse free travelling speed case control data in an urban 60 km/h speed limit environment. An exponentiated second order polynomial function was used to model the relative risk of being involved in a casualty crash based on free travelling speed. The relative risk was found to approximately double for each 5 km/h increase in free travelling speed. This curve and the original data were then used to estimate the effects of various hypothetical speed reduction scenarios. Illegal speeding was found to be a major factor in casualty crashes and it was found that even very small reductions in the speeds of vehicles in general could be expected to result in a major reduction in the frequency of casualty crashes in an urban area.
Keywords: Speed; Risk; Speed Limit; Casualty; Crash; Reconstruction; Urban
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Appears in Collections:Centre for Automotive Safety Research reports

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