機器
blue
car
carriage
cars
coach
country
direction
drive
electric
embankment
empty
engine
forming
freight
green
groundwork
industry
infrastructure
iron
line
link
linking
locomotive
machinery
manage
mechanic
metal
move
multiple
nobody
permanent
pillar
pillars
platform
point
pole
poles
post
posts
power
queue
rail
railcars
railroad
railway
road
service
sky
speed
station
steel
straight
terminal
tie
ties
track
tracks
traffic
train
traincars
trains
trainyard
transit
transport
transportation
transporting
turn
urban
void
way
wire
wires