arrow
asphalt
attention
background
barricade
barricades
block
bright
car
caution
city
cone
construction
danger
delay
detour
diamond
direction
equipment
flash
flasher
flashers
hazard
highway
light
notice
orange
pavement
prohibit
repair
road
roadside
roadwork
safety
sign
signal
site
street
stripe
symbol
traffic
transportation
travel
under
urban
warning
white
work
yellow
zone