Specification:

1.warning signs: yellow bottom,black edge,the shape is equilateral triangle, vertical triangle is          upwards.

2.forbidden signs: white bottom,red circle,red bar,black design (the design is on the bar), of which, the signs of relieving forbidden overtaking and speed restriction are white bottom,black circle,bar,design (the design is on the bar), the shape is circular. Yielding sign is a equilateral triangle, and vertical triangle is downwards.

3.instruction signs: blue bottom,white design, the shape is round,rectangle and square.

4.guide designs: expect for milestone,hectometer,highway terminus, ordinary roads are blue bottom,white design, the shape is rectangle and square apart from location recognition marks.

The details of road reflective signs: