Crash prediction models are commonly used for network screening in highway safety
management process, where potential impacts of highway safety treatments are quantified …

There are various ways in which a transportation agency can approach safety prediction.
One could calibrate the Highway Safety Manual (HSM) using adjustment factors by ranges …

Traditional safety modeling efforts primarily focus on accurately estimating crash frequencies
or rates. The true relationships between crashes and potential causal factors are not always …

Although the conventional understanding is that roundabouts have the potential to improve
safety at intersections, particularly by reducing more severe crash types, there is limited …

This study estimated the Highway Safety Manual (HSM) calibration factors for freeway ramp
segments using Kansas data and further identified the challenges faced during the …

Roundabout implementations at traditional intersections have been shown to be effective at
reducing severe crashes. Roundabouts have also been implemented at interchange ramp …

This paper documents the calibration of the highway safety manual (HSM) safety
performance functions (SPFs), quality assessment of calibrated HSM SPFs, and …

The Highway Safety Manual (HSM) is a national manual for analyzing the highway safety of
various facilities, including rural roads, urban arterials, freeways, and intersections. The …

The Highway Safety Manual (HSM) is a national manual for analyzing the highway safety of
various facilities, including rural roads, urban arterials, freeways, and intersections. The …