This fact sheet provides concise information about the Geometric Design Laboratory (GDL) at the Turner-Fairbank Highway Research Center. The mission of the GDL is to provide technical support to the Federal Highway Administration's Office of Safety Research and Development to develop the Interactive Highway Safety Design Model (IHSDM), a suite of software tools for the safety evaluation of highway geometric design alternatives.
Federal regulations indicate that highway agencies should work with utility companies to treat utility facilities that are found likely to cause injur...
Safety of traffic facilities is most often measured by counting the number (and severity) of crashes that occur. It is not possible to apply such a me...
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United States Department of Transportation
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