A regulatory sign is a type of traffic or public sign used to indicate or reinforce laws, regulations, or requirements that road users or the public must obey. These signs inform drivers and pedestrians about what they must or must not do under specific conditions, and failure to comply can result in legal penalties. Regulatory signs apply either at all times or during specified times or places on streets, highways, or in public areas

. Key characteristics of regulatory signs:

• They give directions that must be obeyed to ensure safety and order on the road.
• Common examples include Stop signs, Yield signs, Speed Limit signs, No Turn signs, One Way signs, and parking restrictions.
• They typically have standardized shapes and colors to be easily recognizable, such as white rectangles with black or red text, red circles or octagons for prohibitions, or blue circles for mandatory instructions.
• Besides traffic, regulatory signs can also regulate public behavior in places like parking lots, parks, beaches, or buildings (e.g., no-smoking signs, tow-away zone signs)

Types of regulatory signs in traffic management include:

• Right-of-Way Control Signs (e.g., Stop and Yield)
• Speed Regulation Signs (e.g., Maximum or Minimum Speed Limits)
• Movement Restriction Signs (e.g., No U-Turn, Turn Only)
• Parking and Vehicle Use Restrictions

These signs are enforceable by law and are designed to promote safety, regulate traffic flow, and prevent accidents

. In summary, a regulatory sign is a legally binding sign that tells road users or the public what actions are required, prohibited, or restricted to ensure safety and compliance with laws