ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners.
As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
Horizontal curves are a basic element of roadway design. Unfortunately, they are also one of the most hazardous locations on roads. In the U.S., the crash rate at horizontal curves is three times higher than at other parts of the roadway. In 2019, close to 20 percent of highway crashes occurred on curves. Roadway departure crashes—mainly run-off-the-road and head-on traffic crashes—account for most fatal crashes on these types of curves.
Curve safety has been an essential issue since curves have a higher fatality crash rate than tangent roadways segments. Many existing studies have foc...
This research focuses on the Crash Analysis Methodology for Segments (CAMS) which provides a way for engineers at the Utah Department of Transportatio...
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