Driving Habits

Leaders in Arlington, Texas, near Dallas, are studying how to reduce pollution generated by idling cars at drive-thru windows.

In an effort to improve gas mileage, 400 drivers in Denver participated in an experiment that tracked and reported the bad driving habits -- idling, rapid accelerating and braking -- that waste fuel. Faced with the data, driving habits have changed.

According to the Federal Highway Administration, the number of miles driven in the U.S. declined by 4.4% since last year.

With gas prices at more than $9 per gallon in Britain, driving habits are changing.