2020
activity
ahead
asphalt
attention
blue
building
carefully
caution
city
closed
construction
danger
dig
digger
highway
industry
information
italy
machinery
men at work sign
metal
object
orange
reconstruction
red
repair
road
road sign
round
safety
sign
signal
site
sky
speed
stop
street
symbol
traffic
transportation
triangle
triangular
under
urban
warning
warning signs
warning triangle
work
worker