submarine
...
police car
...
dump truck
...
motorcycle
...
tractor
...
train crossing
...
traffic light
...
sailboat
...
ambulance
...
bus
...
Do we see trains on the road?
No, we don't.
ship
...
fire engine / truck
...
subway
...
overpass
...
van
...
helicopter
...
car
...
truck
...
bulldozer
...
cable car
...
street
...
road
...
airplane
...