Safe Operation (HOV) : The safe operation requirements apply to priority lanes on freeways used by bus mode and other High Occupancy Vehicles (HOV) to ensure safe travel
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}