What does a regulatory sign typically inform drivers about?

A regulatory sign primarily informs drivers about traffic rules and regulations that must be followed to ensure safe and orderly movement on the road. These signs provide important instructions, such as stop signs, yield signs, and no entry signs, which help maintain traffic flow and safety. By adhering to these regulations, drivers contribute to preventing accidents and ensuring that all road users understand their rights and responsibilities.

While signs that indicate upcoming rest areas provide useful information about amenities, and signs that communicate road conditions or speed limits serve important functions, they do not embody the primary purpose of regulatory signs. Regulatory signs focus specifically on rules and laws that must be observed by all drivers on the road.