Traffic Control System, Centralized (CTC) : A system in which the signals and switches for a designated section of track are controlled from a remotely located centralized traffic control machine
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}