By Neville Judd Rio Tinto’s Oyu Tolgoi (OT) mine in Mongolia began shipping copper in 2013. It’s one of the world’s largest copper operations, directly employing 10,000 people in its open pit and underground operations. Hexagon solutions are long-established at the mine in the south Gobi Desert, including mine planning software, particle-size distribution cameras, and georadar survey equipment.   The recent rollout of Hexagon Collision Avoidance System (CAS) takes OT’s safety proposition to a new level.  There’s no shortage of industry bodies that continue to point to vehicle interactions consistently being a top fatality driver in mining. Powered haulage and mobile…