"hmmmmm.... bridges" said in my best Homer Simpson voice!!
.... and yep.. there is a train on it! It is one of Sydney's Tangara double deck suburban sets.
Bit of movie triv junk for ya. Next time you watch "Independence Day", note the scene at the end, when the flying saucer has crashed on Bondi Beach, and note the scale of the people waving and cheering on the Sydney Harbour Bridge. If that was a "real" shot, in real life, it would make the people about 100' tall!!!!!!!
Movies.... sheesh!! Why can't they get it right!
Oh... bit more triv. The Sydney Harbour Bridge is the
widest bridge in the world. 8 lanes of traffic, 2 rail lines, and 2 pedestrian walkways. :