Group Rapid Transit (GRT) : An automated guideway system that has either on-line or off-line stations and vehicles that carry six to 100 passengers and may combine to operate as a single unit (train)
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}