What is route 15 south?

As an AI language model, I do not have access to real-time traffic or current events. However, Route 15 South is a major highway in the United States that runs from Walterboro, South Carolina to Hagerstown, Maryland. Along the way, it passes through a number of cities and towns, including Augusta, Georgia; Charlottesville, Virginia; and Gettysburg, Pennsylvania. The route spans over 700 miles and is primarily a four-lane divided highway for much of its length. It is also a popular route for travelers heading south from the northeastern part of the US.