S.C. Code Ann. § 58-17-3030
The Public Service Commission shall, from time to time, examine into the schedules of all the railroads in this State for the carriage of passengers, with a view to ascertaining if such roads can reasonably make close connection with intersecting roads and wherever, in its opinion, such close connection can be made without injustice or material injury to any such road it shall make the appropriate orders to require such connection. And, the better to secure connections, the Commission may require all persons operating railroads, except such as may be in the hands of receivers, to run at least one unmixed daily passenger train each way over such railroad and may likewise require such persons to furnish to the traveling public facilities for passage over such railroads twice each way daily. From any such order of the Commission any road may appeal as in cases of appeals from inferior courts.