Pontiac Sunbird Owner's Manual page 121

Your Driving and the Road
KEEP LEFT OR RIGHT TURN
RIGHT THROUGH
ONLY
Shape of Road Signs
(CONT.)
Rectangular (square or oblong) signs
show speed limits, parking regulations,
give directions and such information as
distances to cities.
Symbols on Road Signs
There are many international road signs
in use today.
NO
U
NO NO
TURN
PARKING BICYCLES
The basic message of many of these
signs is in pictures or graphic symbols.
A picture within a circle with a diagonal
line across it shows what not to do.
Traffic lights
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 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.
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