The shape of the traffic sign mainly includes triangles, rhomboid, square, regular pentagon, hexagon, circle, octagonal, etc.
The triangle traffic signs. The high degree of display, regardless of the condition or condition of the light, is more attractive than the other shapes. In our country, the geometry of the positive triangle is used as a warning sign, and the inverted triangle is used in the "parking way" and "slow route".
The circular. The circular display is high, the vision is large, and the text is easy to arrange. In our country, the circle is used to prohibit and indicate the geometry of the two signs.
The square. Including a rectangle and a square, its recognition, used for the geometry of a road sign.