I assume they're testing the Metro trains/line.pic.twitter.com/Qy5IWUMGuO
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Currently on a train on my way to the city. Messages on the Metro are endless. Designed to let us know timetable likely won't run on time and to listen to announcements 
A sign of things to come perhaps. I don't think the Chatswood section of the Metro was running for passengers because it seemed to be going through a routine without passengers.
Just looked it up - Chatswood opens 5 May. Let's hope all goes off without a hitch!
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