Interstate signs will change speed limit from 45 to 65 depending on traffic volume and weather conditions

[Jenna]

The Georgia Department of Transportation will be installing new electronic variable speed limit signs along the northern half of Interstate 285. The speed limits will range between 45 mph and 65 mph, and they will fluctuate depending on traffic volume and weather conditions.

Atlanta turns to variable speed limit system to relieve highway congestion – This Just In - CNN.com Blogs