Lew Wolfgang said the following on 12/05/2011 02:20 PM:
But some decades ago the US adopted "International" signage in which an arrow pointed opposite the direction of traffic with a circle and a line through the arrow.
And what colour was the circle and line? RED. The colour red on a European road sign signals negative information such as a warning or prohibition. Diamond signs indicate priority. Red triangles are warnings. Red circles are restrictions. Blue circles are requirements. Squares and rectangles give guidance. For example the sign which show two arrows pointing in opposite directions. If one of these arrows is red, it means the traffic travelling in that direction must yield to traffic travelling in the other direction. A sign may show a bicycle. The red circle and bar - negative - means "no bicycles". The Blue circle - positive - means "this is a bicycle path". One says "don't" the other says "do". In many ways this is like *NIX. A few basic principles applied over and over. -- Last year I went fishing with Salvador Dali. He was using a dotted line. He caught every other fish. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org