Editing Traffic warning sign (section)

=== General caution ===
[[File:Vienna Convention road sign Ab-32-V1.svg|Yellow diamond with black symbol|thumb|120px|right]][[File:Vienna Convention road sign Aa-32-V1.svg|thumb|100px|left|White background red triangle with black symbol]]
[[File:Vienna Convention road sign Aa-32-V3.svg|thumb|100px|left|Amber background red triangle with black symbol]]

General warning signs are used in instances in which the particular hazard, obstacle or condition is not covered by a standard sign. In Europe, they usually comprise an [[exclamation mark]] on the standard triangular sign ([[Unicode]] {{unichar|26A0|WARNING SIGN}}) with an auxiliary sign below in the local language identifying the hazard, obstacle or condition. In [[Sweden]], the general warning sign has only a vertical line instead of exclamation mark; this model was used also in many other European countries until the 1990s. In the [[United States]] and other countries using diamond-shaped signs, the explanatory language is often written directly on the diamond-shaped sign, although it may contain only a general warning such as "Caution", and pictograms may also be used.