The objective of this study is to quantify the safety performance of horizontal curves on two-
way, two-lane rural roads relative to tangent segments. Past research is limited by small …

A sufficient understanding of the safety impact of lane widths in urban areas is necessary to
produce geometric designs that optimize safety performance for all users. The overarching …

Horizontal curves are known to be more crash-prone than tangent sections particularly with
respect to roadway departure crashes. Rumble strips are an effective countermeasure to …

Design practices in the United States generally allow substantial flexibility in the design of
cross-sectional elements of urban and suburban arterial roadways. The operational and …

The overall objectives of this study were to (1) identify and explore alternative safety data
sources and analysis perspectives and (2) demonstrate the potential utility of these …

Roadway departure crashes are three times more likely on horizontal curves than on
tangent sections of two-lane rural highways. Research is needed to better quantify the safety …

Abstract The Interactive Highway Safety Design Model (IHSDM) is a tool for assessing the
safety impact of project-level design decisions by implementing the HSM crash prediction …

Abstract Crash Modification Factors (CMFs) are typically used to quantify the effects of road
safety countermeasures by estimating the expected safety impact with the installation of …