Many Americans spend frustrating hours each year stuck in congested traffic, a situation that costs the country billions of dollars annually and influences people's decisions about where to live and work. As traffic has risen dramatically over the past 3 decades with population and economic growth, congestion now extends to more times of the day, more roads, and more cities and towns--thus affecting more people than ever before. Estimates of the cost of congestion vary; according to the Department of Transportation (DOT), congestion costs America an estimated $200 billion each year in lost travel time and fuel, and drivers in metropolitan areas spent more than one-quarter of their total travel time in congested conditions. This book examines current issues, impacts and project reviews relating to traffic congestion and road pricing.