1993 Buick Regal Owner's Manual - Page 135

We're all familiar with traffic lights or stop lights. Often 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 morelanes 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 right of way to pedestrians and sometimes to other vehicles. Some trafficlights also use red arrows to signify that you must stop before turning on red. Traffic Lights A REVERSIBLE LANE ON NIULTILANE ROADWAY Many city roads and expressways, and even bridges, use reversible-lane traffic control during rush hours. A red X light above a lane means no driving in that lane at that 133