Computer aided centralised traffic control on South African railways

Reasons, involving efficiency and manpower saving, are outlined for the development of Centralised Traffic Control on South African Railways towards computer based systems. The general operational facilities of computer-aided CTC are discussed, followed by the specific control areas, hardware configuration, and back-up philosophy, for the first implementation. Software for this project, as well as system development and proposed system maintenance, is covered broadly. Future computer applications in this field are listed.