... Or, as the United States Department of Transportation refers to road signs, "Traffic Control Devices" -- a description of their function that is usually, but by no means always, apt.
:: Caution: Stupid Dog Crossing and Other Useful Signs ::
:: Bang! Bang! Signs as Target Practice ::
:: Thou Shall Not! -- Prohibitory Signs ::
:: Thou Shall! -- Imperative Signs ::
:: Quirky Road Signs ::
:: Warning Signs ::
:: Defaced Signs ::
:: Tick Ridge Road, Deer Fly Trail, and Signs for Other Thrilling Destinations ::