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  2. Vienna Convention on Road Signs and Signals - Wikipedia

    en.wikipedia.org/wiki/Vienna_Convention_on_Road...

    Class of sign Shape Ground Border Size Symbol Examples Danger warning sign: Equilateral triangle: White or yellow: Red: 0.9 m (large), 0.6 m (small) Varies; Black or dark blue: Diamond: Yellow: Black: 0.6 m (large), 0.4 m (small) Varies; Black or dark blue: Priority signs Give Way sign: Inverted equilateral triangle: White or yellow: Red: 0.9 m ...

  3. Picture communication symbols - Wikipedia

    en.wikipedia.org/wiki/Picture_communication_symbols

    Picture communication symbols (PCS) are a set of colour and black & white drawings originally developed by Mayer-Johnson, LLC for use in augmentative and alternative communication (AAC) systems. These AAC systems may be high-tech, such as the TD Pilot, or low-tech such as a communication board. PCS symbols are now owned and maintained by Tobii ...

  4. Traffic signs by country - Wikipedia

    en.wikipedia.org/wiki/Traffic_signs_by_country

    Mandatory signs are similar to European signs. They are circular with a red border, a white background and a black symbol. Stop sign and Yield sign are as European, except the word "Stop" is changed for "Pare" and the Yield sign has no letters; it is a red triangle with white centre. Information signs have many shapes and colours.

  5. Traffic sign design - Wikipedia

    en.wikipedia.org/wiki/Traffic_sign_design

    In the UK, positive upright signs are generally circular with a white border and symbol on a blue background. [2] In Ontario , Canada , positive signs have a green circle. [ 1 ] The colour red is used almost universally to prohibit a certain activity, however a vide variety of designs exist even for most stop signs.

  6. International Symbol of Access - Wikipedia

    en.wikipedia.org/wiki/International_Symbol_of_Access

    In the late 1960s, with the rise of universal design, there grew a need for a symbol to identify accessible facilities. [3] In 1968, Norman Acton, President of Rehabilitation International (RI), tasked Karl Montan, chairman of the International Commission of Technology and Accessibility (ICTA), to develop a symbol as a technical aid and present in the group's 1969 World Congress convention in ...

  7. Road signs in Norway - Wikipedia

    en.wikipedia.org/wiki/Road_signs_in_Norway

    Restrictive signs are mostly circular in shape with black symbols on a white background with a red border. The exceptions are zone signs which are rectangular, and no parking signs which use a red symbol on a blue background. These signs are valid from where they stand and for the entirety of the road until it is ended by another sign, or until ...

  8. Comparison of European road signs - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_European...

    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. [17]

  9. Road signs in Ireland - Wikipedia

    en.wikipedia.org/wiki/Road_signs_in_Ireland

    Regulatory signs are mostly circular and mostly black on a white background, with a red border. If the sign contains a prohibition, a red line will diagonally bisect the sign. This type of road sign was introduced in 1956 with the Traffic Signs Regulations, 1956. Some signs were added later. These signs are laid out in Chapter 5 of the TSM.