Buick 1993 Skylark Owner's Manual page 144

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