this video was done by Alan Eldridge. He may have this data.
A quick search of Tableau Public and "melbourne and train" came up with this - Workbook: train station patronage
you could download that workbook and start there as well to see if that gives you what you want. searching Tableau Public is always a great first step for data.
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I can share the data for the viz with you - email me at aeldridge-at-tableau-dot-com and I can send it to you.