Which equipment would NOT be necessary for performing traffic enforcement on private property?

The choice indicating that handcuffs, a baton, and a firearm would not be necessary for performing traffic enforcement on private property is valid because these items are typically associated with law enforcement and situations that require physical restraint or the use of force. In many scenarios of traffic enforcement, particularly on private property, the need for weapons and restraints is minimal. The focus is often on directing traffic, ensuring compliance with regulations, and managing safety rather than employing potentially lethal tools.

In contrast, items like a whistle, reflective belt, and white gloves can be practical for managing traffic. A whistle is helpful for signaling attention or directing vehicles, a reflective belt enhances visibility for the person managing traffic, and white gloves can serve to maintain a professional appearance while indicating authority in directing vehicle movements.