Yes another drone show. This one is exclusively and thoroughly about the viaduct and station site. Wondered why it was so wide? You need room for two run through tracks, two platform tracks and the platforms. It will also be the interchange point for east-west rail. See the link at the bottom of the comments and get ready for an evening of reading... assuming you are a speed reader, if you are interested in that.
https://www.youtube.com/watch?v=AmjJmfLVqik