What is the key purpose of road regulatory signs?

The key purpose of road regulatory signs is to indicate rules and regulations that drivers must follow. These signs are essential for maintaining safety on the roads by communicating mandatory instructions. For instance, they inform drivers about speed limits, no parking zones, yield requirements, and other important rules that ensure orderly traffic flow and the safety of all road users. Understanding and adhering to these regulatory signs is crucial for preventing accidents and violations, as they set legal obligations for drivers.

While some signs may provide directions or warn of potential hazards, the primary function of regulatory signs is to enforce the rules that govern road use. This distinction is what makes option three the most accurate choice in recognizing the role of regulatory signage in road safety.