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Circles, triangles and rectangles by function.
Also known as: South Korean road signs, KATS road sign families
The Korean road sign scheme dividing signs into regulatory circles, warning triangles and informational rectangles.
Divides Korean road signs into regulatory, warning and informational families by shape.
Contexts: Road signage, Public information
Follows the Vienna Convention shapes rather than the North American ones, unlike Japan's warning signs, so two neighbouring countries differ on the same family.
Contexts: Road signage, Public information
Three sign outlines used by function: a circle for regulation, a triangle standing on its base for warning, and a rectangle for information.