Quarry Southern Africa January 2018 | Page 21

well as the complexity of the algorithms, is significant. If you look at EMESRT scenarios, for example, one scenario involves an LDV approaching an intersection with a main road for haul trucks. For level 7 controls, all you need to do is alert both vehicles. For level 8, the system would need to detect two types of vehicles approaching the intersection, identify which vehicle has right of way (in this case the haul truck), and then notify the LDV that it has to stop. For level 9, it has to be able to stop the LDV as well, so it’s extremely complex to implement.” At the end of the day, it is the quarry owner or manager’s responsibility to ensure that their sites have undergone risk assessments and comply with the legislation once the deadline arrives. But without the cooperation of OEMs and third-party suppliers, as well as sharing information within the industry as to what does and does not work, this task will be significantly more difficult than it perhaps needs to be. ■ TECHNOLOGY Ten years ago there were three PDS suppliers in South Africa. Today there are over 40. QUARRY SA | JANUARY/FEBRUARY 2018 _ 19