Look for this sign! When traveling throughout Charleston County you will see road and highway improvements taking place, thanks to the Transportation "Half-Cent" Sales Tax. You will also see paving and other activities that are improving the safety of our citizens and lessening traffic delays during your travels. Now and in the future, when you enjoy a safer and more convenient ride in Charleston County, think of RoadWise, your Charleston County government office responsible for getting results with the Transportation Half Cent Sales Tax.