bag
baggage
big
blue
case
color
commute
day
direction
distance
empty
holiday
horizon
industrial
industry
infrastructure
iron
line
luggage
metal
nobody
object
outdoors
parallel
perspective
platform
public
rail
railroad
railway
red
sky
station
steel
suitcase
summer
tourism
track
train
transit
transport
transportation
travel
trip
vacation
view
way