asphalt
attention
barrier
build
building
caution
city
closed
closeup
cone
construction
danger
detour
ground
industrial
industry
job
men
new
object
occupations
panorama
pavement
progress
reconstruction
renewal
repair
road
roadblock
roadside
roadsign
roadwork
safety
security
signal
signs
site
stop
street
symbol
traffic
transportation
triangular
urban
warning
wheelbarrow
white
work
working
zone