Transportation Research and Education Center

In a mere ten years, public bike-sharing systems have exploded from operating in a few select European cities to expanding in North America at a pace of nearly two dozen cities per year in recent years. The majority of academic research to date has focused either on the complex logistics of designing and operating systems or else on broad comparisons across systems. Investigations of system users and local impacts have only just begun. As cities plan and launch their systems, a tension has ar... Read More

Bicycling is increasing in the United States -- the number of trips made by bicycle more than doubled from 1.7 billion trips in 2001 to 4 billion in 2009 (National Household Travel Survey, 2009). With the increase in bicycling rates, there is a critical need for cycling infrastructure, which includes on and off road bicycle lanes and paths, signs, markings, and signals. One of the key links in a bicycle network is signalized crossings of high volume and high speed roadways. At these intersect... Read More