attention
background
barricade
block
bright
circle
cone
construction
danger
detour
directions
drive
exit
flash
flasher
hazard
highway
idea
information
light
limit
motorway
navigation
notice
orange
pavement
post
repair
road
roadside
safety
signal
site
standing
stop
street
stripe
striped
traffic
transportation
travel
trouble
under
urban
warning
way
work
yellow
zone