"The application of railway signals on a rail layout is determined by various factors, principally the location of points of potential conflict, as well as the speed and frequency of trains and the movements they require to make."@en . "11107"^^ . . . "The application of railway signals on a rail layout is determined by various factors, principally the location of points of potential conflict, as well as the speed and frequency of trains and the movements they require to make."@en . . . . . . . . . . . . . "Application of railway signals"@en . . . . . . . . . . . . . . . . . . . . "1111156457"^^ . . . . . . . . . . . "Penggunaan persinyalan kereta api"@in . . . "25376266"^^ . . . .