Roadsigns - Buick 1993 Skylark Owner's Manual

Road Signs
The road signs you see everywhere are coded by color,
shape and symbols. It's a good idea to know these codes
so that you can quickly grasp the basic meaning or intent'
of the sign even before you have a chance to read it.
Color of Road Signs
RED means STOP. It may also indicate that some
movement is not allowed. Examples are DO NOT
ENTER and WRONG WAY.