A cold planer being operated from the right-side operator station was being backed into position. A ground worker on the right side of the machine was guiding the operator. The machine's left front track assembly struck and ran over another ground worker who was working on the left side of the machine and who was not visible to the operator or to the ground worker on the right side. He died of crushing injuries.

Safe work practices:

• When a mobile equipment operator's view of the work area is obstructed, do not move the equipment until precautions have been taken to protect the operator and other workers from injury.
• Install a mirror or mirrors on mobile equipment to provide a view to the rear. If practicable, install mirrors on equipment with dual operator stations in such a way that the operator has a view of the left side while using right-side controls, and vice versa.
• Ensure that effective traffic control is provided and used whenever the uncontrolled movement of vehicle traffic could be hazardous to workers.
• Provide workers with adequate information, instruction, training, and supervision necessary to ensure the health and safety of themselves and other workers at the workplace.
• Ensure that workers are aware of all known or reasonably foreseeable hazards and that they know what precautions to take to avoid them.