The University of Adelaide CENTRE FOR AUTOMOTIVE SAFETY RESEARCH

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TitleReanalysis of travelling speed and the risk of crash involvement in Adelaide South Australia
AuthorsKloeden CN, McLean AJ, Glonek G
Year2002
TypeReport
AbstractModified 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.
Report NumberCR207
PublisherAustralian Transport Safety Bureau
Publisher CityCanberra
SponsorAustralian Transport Safety Bureau
ISBN0642255865
ISSN14454467
Page Count38
Noteshttp://www.infrastructure.gov.au/roads/safety/publications/2002/pdf/Speed_Risk_3.pdf

Reference
Kloeden CN, McLean AJ, Glonek G (2002) Reanalysis of travelling speed and the risk of crash involvement in Adelaide South Australia (CR207), Australian Transport Safety Bureau, Canberra.


Files Available for Download
CASRATSBSpeedRisk426.pdforiginal PDF