Engineering Based Measures to Manage Speeds on Rural Roads

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Blair Turner

Speed is a major contributor to crashes worldwide, including those on rural roads. The association of Australian and New Zealand road agencies (Austroads) has completed a program of research to provide guidance for managing speeds on these roads. The research focuses on road engineering based measures to address this problem. This paper provides a summary from this research, identifying speed-related treatments for higher risk locations. The research is based on an extensive review of literature, and trials of various treatments, particularly those used where speed reduction is likely to have greatest impact (e.g. curves, intersections and approaching small towns). Where available, information is provided on the expected speed and crash reduction from such treatments. Along with the general research findings, information is provided on an analysis to determine the effectiveness of vehicle activated signs; and the benefits of rural/urban gateway treatments.

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