機器
attention
auto
automobile
car
caution
closed
construction
danger
driving
expressway
highway
industrial
infrastructure
journey
lane
machinery
motorway
renewal
repair
road
road sign
road workers
road works
roadway
roadwork
roadworks
sign
signboard
speedway
stop
street
summer
surface
symbol
tar
tarmac
traffic
traffic jam
transport
transportation
travel
trouble
urban
vehicle
warning
way
work
worker