Speed variations are identified as potentially important predictors of freeway crash rates;
however, their impacts on crashes are not entirely known. Existing findings tend to be …

Objective: To evaluate the impacts of speed variation on the likelihood of traffic collision in
various types of traffic states in a freeway section. Methods: The overall traffic state is divided …

Introduction This study investigates how speed limits affect driver speed selection, as well as
the related crash risk, while controlling for various confounding factors such as traffic …

In recent years, US States have raised their maximum interstate speed limits from 70 mi/h to
75 mi/h, 80 mi/h and even 85 mi/h. However, understanding the effect that these higher …

Relationships between speed choice and crash occurrence have been difficult to identify.
This work examines vehicle speeds (and their variations) derived from single loop detectors …

The recent congressional action revoking the national maximum speed limits has rekindled
the debate over safety and travel time tradeoff. The effect of speed limit increases on the …

Urban arterial roads carry the most traffic on urban road networks and experience the
highest percentage of crashes in urban areas. Safety on urban arterials that are adjacent to …

Driving speed is an important factor in road safety. Speed not only affects the severity of a
crash, but is also related to the risk of being involved in a crash. This paper discusses the …

The primary objective of this article is to contribute to the debate on the relationship between
average speeds, speed variations, and accident rates. This is achieved by the use of two …

Past research has found a non-linear relationship between traffic intensity or level of service
(LOS) and highway crash rates. This paper investigates this relationship further by including …