機器
alert
asphalt
attention
barrier
boundary
build
caution
city
closed
damage
danger
driveway
equipment
fence
forbidden
heavy
highway
hole
industrial
industry
lane
machinery
maintenance
no people
obstacle
plastic
protection
red
road
safety
security
signs
site
stop
street
striped
traffic
transport
transportation
truck
urban
vehicle
warning
white
work