What type of signs are designed to regulate the flow of traffic?

Regulatory signs are specifically designed to control or regulate the behavior of road users and ensure safe and orderly traffic flow. These signs provide directives that must be followed by drivers, such as speed limits, no parking, and stop requirements. Each regulatory sign conveys a clear instruction or prohibition, which is crucial for maintaining safety on the road and preventing accidents.

In contrast, warning signs serve to alert drivers about potential hazards or changes in road conditions, such as curves, intersections, or animal crossings, without mandating a specific action. Information signs, on the other hand, provide helpful details to drivers, such as directions, distances, or points of interest, but do not regulate traffic flow. Yield signs are a specific type of regulatory sign that instructs drivers to yield the right of way but are just one aspect of the broader category of regulatory signs. Therefore, the classification of signs that regulate the flow of traffic falls under regulatory signs.