CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467

Website: www.ctre.iastate.edu/

Iowa State University--Becoming the Best

Low-Cost Strategies to Reduce Speed and Crashes on Curves

Supplementary retroreflective material on chevron

Supplementary retroreflective material on chevron posts were one treatment evaluated


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Project status


Start date: 11/01/08
End date: 03/31/11



Related publications:



About the research


The main goal of this research is to evaluate the effectiveness of dynamic speed feedback signs and other low-cost strategies to reduce speeds and crashes on curves. Research results will provide traffic safety and county engineers and other professionals with additional tools to more effectively manage speeds and decrease crashes on horizontal curves on rural roadways.