Centralized Traffic Control for Railroads

Railroads have installed many thousands of miles of a control system that retains all the time-tested safety features of railway signaling and centralizes the control of traffic on long sections of railroad. Special code type communication circuits and equipment have been perfected to furnish the remote control demanded by this system. The new communication facilities can be combined with other services on the same line wires and the range of control can be extended by the use of carrier current equipment. This centralized form of control has proved to be a dependable source of additionlal traffic capacity and increased earning ability.