Protected intersections are used to facilitate safe crossings for non-motorized users. As a
relatively new treatment in North America, it is essential to understand how their design …

Protected or separated bike lanes or cycle tracks, are increasing in popularity in North
America and Europe. However, despite their documented benefits, there are concerns about …

The focus of this research is to simulate and assess the effect of a protected intersection
design (PID) for bicyclists on traffic operational performance and safety. The PID was …

An acknowledged challenge with protected bike lanes in the United States is that even
though the segment is separated from traffic, bicyclists must merge or interact with turning …

Urban transportation systems tend to operate most effectively when common expectations
exist about all user travel behavior under various conditions. A wide range of behavior …

This report presents finding from research evaluating US protected bicycle lanes (cycle
tracks) in terms of their use, perception, benefits, and impacts. This research examines …

A right-hook crash is a crash between a right-turning motor vehicle and an adjacent through-
moving bicycle. At signalized intersections, these crashes can occur during any portion of …

Intersections are over-represented in crash statistics internationally, suggesting that
treatments targeting intersections could substantially improve road safety. Aligning with a …

Bicycling for transportation is enjoying increased popularity in many parts of the US as
communities recognize the potential of cycling to reduce traffic congestion, improve air …

This paper presents a before–after study of bike boxes at 10 signalized intersections in
Portland, Oregon. The bike boxes, also known as advanced stop lines or advanced stop …