TRAINS on the Joondalup line will be cancelled between Joondalup and Butler stations during the day on Saturday.
The last full-line services on Saturday will depart Perth Underground at 6am and Butler at 6.56am to facilitate maintenance works in the area.
Replacement buses will run while trains are cancelled but passengers should allow extra travelling time.
Services will resume Saturday evening, departing Perth Underground at 6.53pm, Clarkson at 7.16pm and Butler at 7.26pm.
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READ NOWThe Joondalup line will also undergo nightly platform changes at Perth station from October 28 to November 1 for more maintenance works.
Trains will depart from Platform 7 at Perth station, with the last train departing Perth Underground nightly at 9.45pm.
Trains will resume from the regular platforms with the start of timetabled services each morning.