4:00
Industrial ambience - refinery - freight trains passing, city rumble, and cars passing 3.
4:00
Industrial ambience - refinery - freight trains passing, city rumble, and cars passing 2.
6:00
Industrial ambience - refinery - freight trains passing, city rumble, and cars passing 1.
4:00
Industrial ambience - railyard - night, freight trains passing, and city rumble 6.