A product of the Federal Highway Administration’s (FHWA) Safety Research and Development Program, the Interactive Highway Safety Design Model (IHSDM) is a suite of safety analysis tools to evaluate the safety and operational effects of geometric-design decisions on two-lane rural highways.
The Federal Highway Administration is developing an Interactive Highway Safety Design Model (IHSDM) to assist highway geometric design engineers in co...
United States. Department of Transportation. Federal Highway Administration
2024-01-01
Abstract:
This flyer provides an overview of the Geometric Design Laboratory (GDL). The Federal Highway Administration (FHWA) GDL is dedicated to supporting tra...
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United States Department of Transportation
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