What are the main types of safety signs?

[LucasLee]

Safety signs are categorized into: 1. Prohibition signs: Prohibit unsafe behaviors; 2. Warning signs: Alert people to pay attention to their surroundings and avoid potential dangers; 3. Mandatory signs: Require people to take certain actions or adopt specific protective measures; 4. Information signs: Provide specific information, such as indicating safety facilities or safe locations. Additional details: 1. Prohibition signs: These signs indicate that certain actions are not allowed or must be stopped. The geometric shape of a prohibition sign is a circle with a diagonal slash, where the circle and slash are connected, colored in red; the graphic symbol is in black with a white background. 2. Warning signs: These signs warn of possible dangers. The geometric shape of a warning sign is a black equilateral triangle with a black symbol and a yellow background. 3. Mandatory signs: These signs indicate that compliance is required. The geometric shape of a mandatory sign is a circle with a blue background and a white graphic symbol. 4. Information signs: These signs indicate the direction of a target. The geometric shape of an information sign is a square with a green or red background, white graphic symbols, and text.