CSX's AC dispatcher covers the mainlines from Corbin, KY, to Cartersville, GA, known as the KD and Etowah subdivisions, and the line from Chattanooga, TN, to Atlanta, known as the W&A subdivision. Through the mountains of KY and TN, there is a helper service on the KD subdivision for southbound trains. The W&A subdivision can get busy at times, especially around Cartersville. Enjoy another route covering 300+ miles of mainline trackage today!