Yanchep Line Platform Change Sun 20 Jul - Thu 24 Jul The Yanchep Line will run from Perth Station Platform 9 nightly from Sunday 20 until Thursday 24 July to facilitate maintenance works on the Mandurah Line.The last Yanchep Line train to depart Perth Underground Platform 1 each night will be 10.17pm.Services will resume from the regular platform from first service each 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.