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Signs in the MUTCD are often more text-oriented, though some signs do use pictograms as well. Canada and Australia have road signs based substantially on the MUTCD. In South America, Ireland, several Asian countries (Cambodia, Japan, Thailand, Malaysia and Indonesia) and New Zealand, road signage is influenced by both the Vienna Convention and ...
Typefaces used in road signage varies across countries. Usually a country will have a standardized typeface throughout the country. In some countries however, it is not unlikely to find other typefaces in use — as well as road signs with the wrong typeface printed by manufacturers who default on some other font.
The design of mandatory signs varies widely, since the MUTCD does not specify their use. [15] Rather, the MUTCD's equivalent are classified as regulatory signs. Some countries use simple arrows with the text "ONLY" or its equivalent underneath. This is the US and Australian standard. Some countries use European-style white-on-blue circular signs.
The intensive work on international road signs that took place between 1926 and 1949 eventually led to the development of the European road sign system. Both Britain and the United States developed their own road signage systems, both of which were adopted or modified by many other nations in their respective spheres of influence.
Almost all prohibitory signs use a red circle with a slash. Restrictive signs typically use a red circle, as in Europe. Some may be seated on a rectangular white background. The original MUTCD prohibitory and restrictive signs were text-only (i.e. NO LEFT TURN). [9] Some of these signs continue to be used in the US.
In many European countries the dark background with light coloured text version of the sign is intended for information only. [16] Poland uses white text on a green background (E-17a/E18a) to show the political boundary of a place as information and uses the black on white pictogram version (D-42/D-43) to designate the change of traffic rules.
The intensive work on international road signs that took place between 1926 and 1949 eventually led to the development of the European road sign system. As the 20th century progressed, and traffic volume and vehicle speeds increased, so did the importance of road sign visibility.
The Geneva Convention on Road Traffic was concluded in Geneva on 19 September 1949. The convention has been ratified by 101 countries. Since its entry into force on 26 March 1952, between signatory countries ("Contracting Parties") it replaces previous road traffic conventions, notably the 1926 International Convention relative to Motor Traffic and the International Convention relative to Road ...
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