The south-west metro extension will open on Friday 30 October, more than two years after the former T3 heavy rail line closedGet our breaking news email, free app or daily news podcastA long-awaited extension to Sydney’s metro line will open on Friday next week, bringing an end to more than two years of replacement buses for residents in the city’s south-west.In a video shared on Instagram on Thursday morning, the New South Wales premier, Chris Minns, announced that the south-west metro exte