What are the yellow, black and white speed signs?

The yellow number indicates the highest speed, the black number indicates the suggested speed and the white number indicates the lowest speed.

Red circle on white background, and black number indicates the maximum speed allowed to drive; A white circle on a blue background, with a white number indicating the minimum allowable speed and a bowl-shaped white pattern below the number; Black circles on a white background and multiple diagonal lines on black numbers indicate that the speed has increased. In this case, you can drive faster; In addition to these speed limit signs, speed limit signs will be painted on the roads.

Speed limit sign and speed limit sign

These two signs are very common on general roads. The speed limit sign consists of black circles on a white background, and the speed limit sign consists of black diagonal circles and black characters on a white background.

The speed limit sign means that the speed of the motor vehicle shall not exceed the value shown in the sign in the road section from the sign to the front speed limit sign or another speed limit sign with different speed limit values.