Truck 6 : The assembly of parts consisting of steel or rubber wheels and axles with necessary springs and structural members that support the main body of a bus or rail car at each end
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}