英文關鍵字
access
ahead
alert
attention
barricade
barrier
block
blocked
car
caution
closed
closure
construction
danger
day
detour
direction
diversion
divert
drive
driving
end
exit
guidance
guide
hazard
highway
improvement
lane
light
maintenance
marking
motorway
nobody
object
obstacle
one
post
problem
prohibit
reconstruction
red
redirect
redirecting
regulation
repair
restricted
restriction
road
roadblock
roadside
roadsign
roadway
roadwork
safety
security
sign
signage
signal
signpost
slow
standing
striped
stripes
traffic
transport
transportation
travel
trouble
under
warning
way
work
zone