In which situations should flags be used as a hand signaling device?

Flags are used as hand signaling devices primarily in emergency situations because they provide immediate and visible guidance to drivers and other road users when standard traffic control measures may be inadequate. In emergencies, quick communication and clear signaling become critical, as they can help direct traffic safely around hazards or incidents.

Using flags in these circumstances allows for flexibility and adaptability, enabling trained personnel to respond rapidly and effectively to changing conditions. This is particularly important when visibility may be compromised or when typical signage cannot be deployed quickly enough.

In contrast, routine traffic control usually relies on traffic signals, signs, and other standardized methods of directing traffic rather than personal hand signals, as these methods are established and widely recognized by drivers. While flags can be used in construction zones to supplement other forms of traffic control, they are not the primary source of direction. Similarly, in pedestrian crossings, signage and signals are typically employed to ensure safety and compliance.