1. Machines should always be parked on flat level ground, or a slight front-to-rear incline with bund behind.
2. Machines parked on open gradients, where they could roll away, should always be wheel chocked.
3. Operators must ensure the parking brake is properly applied before they get out of the machine.
Site managers should check for any machines with manually operated parking brakes and where possible retrofit an audible warning device to alert the driver if he/she attempts to get out of the machine if the brake has not been applied.
If discussing or reviewing this incident with colleagues a good question to ask is - Could a similar incident happen on our site and if so, what are we going to do to make sure it doesn’t?