Originally Posted By howard
Prohibition signs are supposed to have a red outer circle.


Originally Posted By Highway Code

A RED RING or RED CIRCLE indicates a prohibition. A BLUE CIRCLE generally gives a positive (mandatory) instruction or indicates a route for use only by particular classes of vehicle (see sections on tram signs and bus and cycle signs).


Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE