1993 Oldsmobile 88 Owner's Manual - Page 149

Your Driving and the Uoad STOP 30 N07 ENTER WRONG ZONE WY A RR ADVANCE NARROW BRIDGE CROSSING NO PASSING Color of Road signs a yellow sign. It may signal a railroad that some movementis not allowed. The road signs you see everywhere are Examples are Do Not Enter and Wrong- crossing ahead, ana passing zone, or some other potentially dangerous coded by color, shape and symbols. It's Way. line situation. Likewise, a yellow solid a goodidea to know these codesso that painted on the road meansDon't Cross. you can quickly graspthe basic meaning you or intent of the sign even before have a chance to read it. Road Signs Red means Stop. It may also indicate Yellow indicates a general warning. Slow down and be careful when you see HOSPITAL 1NFORMATION Green is usedto guide the driver. Green Blue signs withwhite letters show motorists' services. signs may indicate upcoming h w a y exits or show the direction you should turn to reach a particulaf place.