traffic sign
attention
avenue
call
caution
code
country road
cover
crossing
danger
dangerous
end
engine
highway
indication
locomotive
objective
pictogram
pictograph
pointer
protection
rail
rail traffic
railroad
railway
regulate
regulation
road
road safety
route
rule
save
security
shelter
sign
signal
signboard
soil marking
speed limit
steam
street
track
traffic control
traffic route
train
transition
warning
water vapor
water vapour
yellow