Common U.S. road signs incorporating arrows are One Way, U-turn, Turn Only Lanes, Keep Right and Divided Highway. An arrow may also convey prohibited actions when a large red circle with a diagonal line is overlaid upon it. Examples of these signs include No U-turn and No Left Turn.Continue Reading
"Standard Highway Signs," part of the "Manual on Uniform Traffic Control Devices," gives specifications and dimensions for road signs required by U.S. federal regulations.
Standardized signs using arrows and simple geometric shapes, rather than text, ensure that important traffic safety information can be conveyed quickly to drivers. Visual symbols have the added advantage of being independent of language, and can be interpreted easily by nonEnglish speakers.Learn more about Geography