I know this is not related to air travel, but thought you might find this new tool from Google helpful. Now you can see real-time traffic congestion for major cities. Just put in your city and update the display. I’m not sure how many cities are covered, but it looks like all major metropolitan areas are included.
New York, NY
Boston, MA
Chicago, IL
Los Angeles, CA
Washington, DC
Traffic Map of Atlanta at 3:38 pm
