US 17N. Charleston has one major bus system. Bus routes serve Mount Pleasant, Sullivan's Island, the Isle of Palms, North Charleston, West Ashley, James Island, Hanahan, and the Peninsula. The buses, modeled to look like trolleys, leave the center regularly and carry the visitors to and from the historic district. The City has developed a number of off street parking facilities within a one block area of DASH routes. Additionally, an expanded rural transit service will be setup by 1997 to operate within the rural areas of the tri-county.
Water transportation is central to the Charleston economy.
The City's shipping port system, which offers more than two miles of berthing space, connects Charleston with more than 100 countries all over the globe.