Centralized Traffic Control System (CTC) : A traffic control system whereby train movements are directed through the remote operation of switches and signals from a central control point
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}