Which of the following is NOT a type of traffic sign?

Stopping signs are not classified as a distinct type of traffic sign. Instead, they are part of the regulatory sign category, which includes signs that inform drivers of specific laws they must follow. Regulatory signs, such as stop signs, yield signs, and speed limit signs, are designed to manage traffic flow and ensure safety by dictating certain behaviors that drivers must adhere to.

On the other hand, warning signs serve to alert drivers of potential hazards or changes in road conditions ahead, while directional signs provide navigation assistance and help in guiding drivers to specific locations or routes. Understanding these categories of traffic signs is essential for recognizing their roles in maintaining traffic order and ensuring safety on the roads.