Final answer:
The three major groups of traffic signs are regulatory signs, warning signs, and guide signs. Regulatory signs give instructions, warning signs indicate potential hazards and guide signs provide information and guidance.
Step-by-step explanation:
The three major groups of traffic signs are regulatory signs, warning signs, and guide signs.
Regulatory signs are used to give instructions or regulations that must be obeyed, such as speed limit signs, stop signs, and yield signs. They have a white background with red or black lettering.
Warning signs are used to make drivers aware of potential hazards or dangerous conditions ahead, such as curve warning signs, school zone signs, and deer crossing signs. They have a yellow background with black lettering.
Guide signs provide information and guidance to drivers, such as exit signs, service signs, and route markers. They have a green background with white lettering or symbols.