1993 Buick Century Owner's Manual - Page 142

Traffic Lights NO U ' TURN NO PARKTNG NO BICYCLES The basic message of many of these signs is in pictures or graphic symbols.A picture withina circle with a diagonal line across it shows what to do. not We're all familiar with traffic rights stop lights. Often or green arrows are being used in the lights for improved traffic control. On some multilane roads, green arrows light up, indicating that traffic in one or more lanes can move or make a turn. Green arrows don't mean "go no matter what?You'll still need to proceed with caution, yielding the rightof way to pedestrians and sometimes to other vehicles. Sometrafficlightsalsousered arrows tosignifythatyou must stop before turningon red.