Modern Quarrying Q4 2018

By now, everyone should have done their risk assessments on TMM to determine their level of risk.

Letisha van den Berg, Health and Safety at Afrimat.

SLOW SPEED

have been met as per specification. This is a costly exercise for the PDS/ CAS suppliers and if they are willing to do this you know they are serious about getting their units perfect. Another challenge is that almost all the PDS/CAS suppliers have over- seas mother companies to consult if you want to make software changes – this is a challenge in turnaround on improvements. However, there are some local companies that outper- form most of the respected South African and international PDS/CAS companies. I believe in local support – local is ‘lekker’! Meanwhile, dealing with an internationally affiliated company means price increases due to exchange rates. MS: The quarrying industry has previously raised concerns pertaining to lack of consultation and also highlighted that the promulgation of PDSs, CAS and motion inhibitors did not precede the necessary studies done at quarries. What is your viewpoint at this stage? LdvB: This was the industry’s

GREEN ZONE

REAR RED ZONE

AMBER ZONE

RED ZONE

Amber Zone De-rate Trigger *Level 9

Red Zone Stop Trigger *Level 9

HIGH SPEED

GREEN ZONE

REAR RED ZONE

AMBER ZONE

RED ZONE

Green Zone General Awareness and no warnings

Amber Zone Visual and audible warning at 1 beep per second

Red Zone Visual and audible warning at continous beeb

The deadline for collision avoidance systems was initially set for 2019, but has subsequently been pushed to July 2020.

and all PDS/CAS suppliers have to go for a simulation at the University where they receive a report that indicates if the Level 9 control works

Manufacturer law makes the manu- facturer liable if the unit fails. The Mineral Council and the University of Pretoria joined forces

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QUARTER 4 - 2018 MODERN QUARRYING