attention
automobile
blue
bold
car
caution
closeup
clouds
construction
country
day
drive
driving
geometric
halt
instruction
instructions
lane
law
lettering
letters
limit
look
octagon
ordinance
outdoors
outside
park
pass
posted
read
red
regulation
road
roadway
rule
rural
s4
safety
shape
sign
sky
stop
street
summer
traffic
triangle
warning
white
yield