What are the three main types of traffic signs?

The correct answer identifies the three principal categories of traffic signs as regulatory, warning, and informational signs.

Regulatory signs are critical as they provide directives that must be followed, such as speed limits, stop signs, and yield signs. These signs ensure the safe and orderly flow of traffic by informing drivers of the laws they are required to obey.

Warning signs are designed to alert drivers to potential hazards or changes in road conditions that may require caution. Examples include signs indicating curves, pedestrian crossings, and animal crossings. These signs help minimize accidents by making drivers aware of unexpected situations.

Informational signs offer guidance to drivers regarding locations, services, or certain driving expectations. These include directional signs, mile markers, and signs indicating points of interest or upcoming services.

The other options do not accurately reflect the standard classifications or commonly recognized types of traffic signs. While they may reference valid concepts, they do not encapsulate the universally accepted categories within traffic signage. Understanding the correct classifications helps in recognizing the role each type plays in road safety and navigation.