Urban Mobility Report, 2009

摘要

This summary report describes the scope of the problem and some of the improvement strategies. Congestion is a problem in Americas 439 urban areas, and it has gotten worse in regions of all sizes. In 2007, congestion caused urban Americans to travel 4.2 billion hours more and to purchase an extra 2.8 billion gallons of fuel for a congestion cost of $87.2 billion an increase of more than 50% over the previous decade (Exhibit 1). This was a decrease of 40 million hours and a decrease of 40 million gallons, but an increase of over $100 million from 2006 due to an increase in the cost of fuel and truck delay. Small traffic volume declines brought on by increases in fuel prices over the last half of 2007 caused a small reduction in congestion from 2006 to 2007. There are many congestion problems but there are also many solutions. The most effective strategy is one where agency actions are complemented by efforts of businesses, manufacturers, commuters and travelers. The best approach to selecting strategies is to identify projects, programs and policies that solve problems or capitalize on opportunities. The strategies must address the issue that the problems are not the same in every region or on every day the variation in travel time is often as frustrating and costly as the regular daily slog through traffic jams. The 2009 Urban Mobility Report clearly demonstrates that all the solutions are not being implemented fast enough.