I thought the rectangles were always advisory? Any difference between the blue and red ones?
As I understand it, blue signs are generally informational, and red signs are generally warnings / instructions.
Oh hang on - here is a good resource: http://www.onlinedrivingtheory.co.uk/Signs/Introduction.aspx
@bothwell started
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As I understand it, blue signs are generally informational, and red signs are generally warnings / instructions.
Oh hang on - here is a good resource: http://www.onlinedrivingtheory.co.uk/Signs/Introduction.aspx