Joondalup Line Nightly Platform Changes Mon 04 Dec - Thu 07 Dec The Joondalup Line will run from Perth Station Platform 6 nightly from Monday 4 December until Thursday 7 December to facilitate maintenance works on the Mandurah Line.The last Joondalup Line train to depart Perth Underground Platform 1 each night will be at 10.15pm.Services will resume from the regular platform from first service the following morning.If you require further assistance regarding service changes or planning your journey, please call the Transperth InfoLine on 13 62 13 (TIS: 13 14 50). Hearing or speech impaired? Call via NRS 133 677 and ask for 13 62 13.