A red disc with a white horizontal bar across it, prohibiting entry to all vehicles.
Also known as: Do not enter, Red circle with a white line, No entry
The no entry sign prohibits vehicles from entering the road ahead. Its face is a plain red circle crossed by a single white bar, and it is normally the reverse face of a one-way street.
Prohibits entry by all vehicles to the road or carriageway beyond it.
Contracting parties to the 1968 Vienna Convention · Contexts: Road signage
Belongs to the Convention's prohibitory category, whose signs are circular with a red border — the shape and colour that signal a prohibition rather than a warning or an instruction.
Contracting parties to the 1968 Vienna Convention · Contexts: Road signage
Is most often met at the far end of a one-way street, facing traffic that would be travelling against the permitted direction.
Contexts: Road signage
A solid red disc carrying a single broad white horizontal bar across its centre, the bar stopping short of the edge on both sides.
The two faces of the same arrangement: one permits travel in a direction, the other forbids it.
Both are prohibitory signs under the Convention: circular, red-bordered.