英文關鍵字
barrier
drive
errgt
freeway
highway
infrastructure
innovation
motorway
movement
noise
noise-protection
orange
pace
protect
protection
public
railway
ride
speed
stress
time
traffic
transport
transportation
travel
view
wall
英文關鍵字
barrier
drive
errgt
freeway
highway
infrastructure
innovation
motorway
movement
noise
noise-protection
orange
pace
protect
protection
public
railway
ride
speed
stress
time
traffic
transport
transportation
travel
view
wall