alert
asphalt
attention
background
barricade
building
car
caution
city
closed
construct
construction
control
danger
direction
equipment
improvement
maintenance
message
nobody
pavement
progress
protection
reconstruction
red
repairing
road
roadside
roadsign
roadwork
roadworks
safety
sign
signage
signal
signs
site
street
symbol
traffic
triangle
urban
warning
way
work
worker
working
works
yellow
zone