Traffic stacks up on the highway south of Atlanta, Ga., in May 2006.
Ric Feld/AP/FILE
Yearly delay: 44 hours
Cost per driver: $1,046 (Atlanta), $1,056 (Seattle)
The study’s authors acknowledge that populated cities are bound to face a certain level of congestion, but suggest a few things for improving the situation, including carpooling and telecommuting to the office.