With the move away from city centers, and rapid increase in the number of cars on the road, it soon became clear that no amount of roads could handle the ever growing number of cars trying to cram on to them. Ever feel like you spend your whole life stuck in traffic? Well you are not alone: with the increase in the number of cars on the road, traffic congestion continues to worsen in American cities of all sizes. This gridlock is creating a $78 billion annual drain on the U.S. economy in the form of 4.2 billion lost hours and 2.9 billion gallons of wasted fuel—that’s 105 million weeks of vacation and 58 fully-loaded supertankers.

Talk about waste. A gallon of gas has about 19 pounds of CO2, meaning that 2.9 billion gallons of gas wasted means 55.1 billion pounds of CO2 needlessly pumped into the atmosphere every year.

These are among the key findings of the Texas Transportation Institute’s 2007 Urban Mobility Report. Improvements to the methodology used to measure congestion nationwide have produced the most detailed picture yet of a problem that is growing worse in all 437 of the nation’s urban areas. The current report is based on 2005 figures, the most recent year for which complete data was available.

This traffic has a lot of causes: bigger cars, more cars, people living farther from where they work, people no longer taking public transportation, and poor design of roads and cities to handle this increased traffic. "There is no ‘magic’ technology or solution on the horizon because there is no single cause of congestion," noted study co-author Tim Lomax, a research engineer at TTI. "The good news is that there are multiple strategies involving traffic operations and public transit available right now that if applied together, can lessen this problem."

As they say, time is money. The 2007 mobility report notes that congestion causes the average peak period traveler to spend an extra 38 hours of travel time and consume an additional 26 gallons of fuel, amounting to a cost of $710 per traveler. Along with expanding the estimates of the effect of congestion to all 437 U.S. urban areas, the study provides detailed information for 85 specific urban areas. The report also focuses on the problems presented by "irregular events"—crashes, stalled vehicles, work zones, weather problems and special events—that cause unreliable travel times and contribute significantly to the overall congestion problem. Worsening congestion, the study notes, is reflected in several ways:

• Trips take longer
• Congestion affects more of the day
• Congestion affects weekend travel and rural areas
• Congestion affects more personal trips and freight shipments
• Trip travel times increasingly are unreliable

Researchers spent two years revising the methodology, using additional sources of traffic information, providing more—and higher quality—data on which to base the current study. The report identifies multiple solutions to the congestion problem that, researchers say, must be used together to be effective. These include:

• Get as much service as possible from existing infrastructure
• Add road and transit system capacity in critical corridors
• Relieve chokepoints
• Change usage patterns
• Provide choices
• Diversify the development patterns
• Keep expectations realistic

With the increasing cost of oil, and the consequences of this wasted time, money and fuel, combined with the horrible ecological cost of this waste, it is clear that the current system is not sustainable. In my mind, the most important changes are changing use patterns, and diversifying development patterns. The creation of bike routes and walking paths will allow people who live close to ride their bikes to work, or walk. Building mixed zoned places will allow people to have a house near the place they work.

How is your commute? Do you spend a large amount of time in your car each day watching the traffic jam move slowly? What would you do to solve traffic jams? Want more highways in your neighborhood? Would you install bike lanes? More bus routes? Leave a comment with how you beat the daily gridlock.