GMC 1993 Safari Owner's Manual page 162

Your Driving and the Road
Symbols
on
Road
Signs
There are many international road signs in use today.
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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.
h
-
JI
NO U
TURN PARKING
NO BICYCLES
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Traffic Lights
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We're all familiar with traffic lights or stoplights. 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
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