What is an important safety measure while operating a stacker?

Wearing high-visibility clothing is a crucial safety measure while operating a stacker because it significantly enhances the operator's visibility to others, especially in environments where there are multiple vehicles and personnel. This is particularly important in workplaces like warehouses and distribution centers, where visibility can be compromised due to clutter, equipment, or poor lighting. High-visibility clothing makes it easier for coworkers and other operators to see the stacker operator, thereby reducing the risk of accidents and injuries.

Other options do not prioritize safety. For instance, using the stacker indoors may not always be appropriate depending on the environment, while driving without a load at high speeds is inherently unsafe and can lead to loss of control. Neglecting safety gear constitutes a disregard for personal safety and increases the risk of injury during operation. Hence, wearing high-visibility clothing not only safeguards the individual but also promotes a safer work environment for everyone involved.