What is a common safety practice when working near elevator shafts?

Ensuring the shaft doors are closed is a vital safety practice when working near elevator shafts. Elevator shafts present significant hazards, such as falls and unexpected elevator movements. By keeping the doors closed, you minimize the risk of accidental entry into the shaft area, which can lead to serious injuries or fatalities. Closed shaft doors act as a barrier, preventing both personnel and tools from falling into the shaft or being in proximity to moving elevators.

The other options, while they may contribute to overall safety in different contexts, do not specifically address the critical hazard posed by open elevator shaft doors. For instance, while reflective vests can improve visibility, they do not protect against falls. Likewise, keeping tools off the ground may reduce trip hazards but does not mitigate the risks associated with open shafts. Having two people present can provide assistance and increase safety awareness, yet it does not prevent the dangers associated directly with open or unsecured elevator shaft doors.