英文關鍵字
automated
barrier
caution
country
countryside
crossing
crow
danger
driving
freight
gate
gateway
going
hazard
horn
incoming
infrastructure
junction
level
line
locomotion
locomotive
passing
protection
public
rail
railroad
railway
red
road
route
rural
safety
security
sign
station
stop
street
track
traffic
train
transit
transport
transportation
travel
trip
wait
walks
warning
way