In general, the basic meaning of the color of traffic signs is as follows:
A. Red: indicates prohibition, stop and danger. It is used for the border, background color and slashes of the prohibition mark. It is also used for the x symbol and the slant symbol, the background color of the warning linear induction mark, etc.
B. Yellow or fluorescent yellow: indicates a warning and is used as the background color of the warning sign.
C. Blue: indicates instruction, compliance, and is used to indicate the base color of the mark;Represents the driving information of place names, routes, directions, etc., and is used for the background color of general road markings.
D. Green: represents the driving information of place names, routes, directions, etc., and is used as the background color of expressway and urban expressway indication signs.
E. brown: indicates the direction of tourist areas and scenic spots, and is used as the background color of tourist area signs.
F. Black: the text, graphic symbol, and border of part of a symbol.
G. White: background color, text and graphic symbols for logos, as well as borders for some logos
H. Orange or fluorescent orange: used for warning and pointing signs in road work areas.
I. fluorescence yellowish green: denotes warning, used to pay attention to pedestrians and children warning signs.
The general rules for the shape of traffic signs are as follows:
A. Equilateral triangle: used for warning signs;
B. Circles: used for injunctions and direction marks;
C. Equilateral triangle: used for "deceleration and assignment" injunctions;
D. Octagonal: used for "parking and transferring" injunctions;
E. Forked: used as "forked symbol of railway crossing" warning mark:
F. Square: used for road signs, partial warning, prohibition and indication signs, tourist area signs, auxiliary signs and notice signs.