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Mandatory signs are road signs that are used to set the obligations of all traffic that uses a specific area of road. Most mandatory road signs are circular in shape and may use white symbols on a blue background with a white border, or black symbols on a white background with a red border, although the latter is also associated with prohibitory signs.
11th edition of the MUTCD, published December 2023. In the United States, road signs are, for the most part, standardized by federal regulations, most notably in the Manual on Uniform Traffic Control Devices (MUTCD) and its companion volume the Standard Highway Signs (SHS).
Shape and colour of sign types Sign type [1] Meaning Colour (per ISO 3864-4) [7] Shape [7] Example Prohibition sign: Must not do: Red: Circle with diagonal line: No open flame Mandatory sign: Must do: Blue: Circle: Use hearing protection Warning sign: Warn of hazard: Yellow: Equilateral triangle with rounded corners: Explosive materials Safe ...
C. Prohibitory or restrictive signs; D. Mandatory signs; E. Special regulation signs; F. Information, facilities, or service signs; G. Direction, position, or indication signs; H. Additional panels; Five or more signs may be displayed on one post. Here a Canadian end-of-road marker appears together with a rural airport sign. Speed limit traffic ...
Mandatory action signs in the Americas tend to be influenced by both systems. Nearly all countries in the Americas use yellow diamond warning signs . Recognizing the differences in standards across Europe and the Americas, the Vienna convention considers these types of signs an acceptable alternative to the triangular warning sign. [ 2 ]
5 Mandatory signs. 6 Regulatory signs. 7 Information signs. 8 Service signs. 9 Additional panels. 10 References. 11 External links. Toggle the table of contents.
Ukrainian signs are similar to the signs of other post-Soviet states and are set out in 7 separate categories based on meaning: warning, priority, prohibitory, mandatory, information, service, and additional plates. [1] The state importance roads have different indexes, each standing for the respective letter in Cyrillic.
5.4.6 Signs for specific use in the town. 5.5 Additional panels. 5.6 Other signs. ... Mandatory signs. R-400a Turn right. R-400b Turn left. R-400c Go straight. R-400d