30
area
background
black
blue
car
caution
circle
city
country
drive
focus
germany
gravel
green
h
hour
kilometers
km
law
limit
limited
maximum
mph
nature
nobody
number
per
red
regulation
road
round
safety
side
sign
sky
slow
speed
street
summer
symbol
thirty
traffic
transport
transportation
travel
tree
warning
way
white