alert
asphalt
attention
background
barricade
beware
car
caution
city
closed
construction
danger
direction
drive
industrial
industry
maintenance
obstacle
pavement
progress
reconstruction
red
repair
road
road sign
roadblock
roadsign
roadwork
roadworks
route
safety
security
sign
signal
site
stop
street
symbol
traffic
transport
transportation
triangle
under
urban
warn
warning
way
work
yellow
zone