PMSS Project Details

Project ID:	FHWA-PROJ-07-0020
Project Name:	Evaluation of Speed-Activated Displays on Curves
Status:	Active
Contact:	Last Name: Knoblauch First Name: Richard Telephone: 202-493-3369 E-mail: richard.knoblauch@dot.gov
Organization:	Federal Highway Administration - Turner-Fairbank Highway Research Center (TFHRC)
Office:	Office of Safety Research and Development
Team:	Roadway Team
Roadmap/Focus area(s):	Speed Management
Project Findings:	Data not yet available
Project Description:	The objective of this research project is to evaluate the effectiveness of low cost, speed activated dynamic curve warning systems on speeding and safety on horizontal curves in rural roadways. Research is being conducted in the Center for Transportation Research and Education, Iowa State University
Laboratories:	Not Applicable
Start Date:	September 4, 2007
End Date:	March 30, 2013
Funding Amount:	$300,000.00
FHWA Program Name:	Turner-Fairbank Highway Research Center
Goals:	Conduct a national demonstration project to assess the effectiveness of dynamic speed activated feedback sign systems on reducing speeds and crashes on curves on two-lane rural roads. Provide traffic safety engineers with additional tools to more effectively manage speeds and decrease crashes on horizontal curves on rural highways.
Project Type:	Offsite
Background Information:	An estimated 56 percent of run-off-road fatal crashes on curves are speed related. Driver error on horizontal curves is often due to inappropriate selection of speed and inability to maintain lane position. Higher crash rates are experienced on horizontal curves that require greater speed reductions, while curves requiring no speed reduction do not have significantly different mean crash rates from their preceding roadway tangents.
Test Methodology:	Before/After evaluation with control sites.
Other Information:	A total of 22 speed activated curve warning signs have been installed in 7 States. Notes: Due to the late date for installation of speed activated signs in Texas, the project will need to be extended to June 2012. Responsibility as a Contracting Officer's Technical Representative (COTR) was transferred to Richard Knoblauch in June 2010.
Partners:	Data not yet available
More Information URL(s):
Fieldtest:	Data not yet available
Expected Benefits:	The expected benefit is the reduction in speed-related lane departure crashes on rural high speed roads.
Deliverables:	Name: Report on long-term effectiveness of a dynamic speed-activated feedback sign on driver performance--including comparison of two different sign types. Product Type(s): Research report, Techbrief Description: Report on long-term effectiveness of a dynamic speed activated feedback sign on driver performance--including comparison of two different sign types. Audiences: Safety researchers, Researchers, Traffic engineers Secondary Audiences:
Related URL(s):
FHWA Topics:	Safety--Speed Management
TRT Terms:	speed-activated displays speed management
FHWA Disciplines:	Safety
Subject Areas:	Safety and Human Factors Research