Traffic sign size regulations

The board size of warning, prohibition, and instruction signs and the text height of guide signs should be determined by the design speed of the highway. The board size of guide signs should also consider factors such as the number of characters, graphic symbols, other text, and layout beautification. , the relationship between the height of other characters and Chinese characters, the place should be placed on the far left, and the place names are arranged from near to far, and from top to bottom. If several independent sign boards are grouped together, the lengths of each board should be the same. Among the location and direction signs, the straight sign should be set at the top, and below it are the places that can be reached by going left and right.
When the difference between the operating speed of a road section and the design speed is greater than 20}n/h, the layout specifications and visibility of traffic signs should be inspected according to the operating speed.