The influence of speed limits on roadway safety has been a subject of continuous debate in
the state of Indiana and nationwide. In Indiana, highway-related accidents result in about …

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 …

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 …

Three methodologies are used and compared to determine whether there has been a
statistically significant change in traffic collisions (total, fatal, fatal plus injury, wet pavement …

This paper studies the effect of the changed speed limits on accident counts for major
roadways in the urban environment of Hong Kong. In 1999–2002, the speed limits of a …

Maximum speed limits are usually set to inform drivers of the highest speed that it is safe and
appropriate for ideal traffic, road and weather conditions. Many previous studies were …

Background: In 1987 individual states in the USA were allowed to raise speed limits on rural
freeways from 55 to 65 mph. Analyses of the impact of the increased speed limits on …

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 …

Objectives: The objective of this study was to examine the safety effects of increases in US
state maximum speed limits during the period 1993–2013. Methods: Poisson regression …

The setting of national speed limits, especially on rural roads, is a contentious matter that
leads to a great deal of debate, much of it tending to be unscientific and emotional. In this …