WORK on rail lines will interrupt train services on part of the Joondalup line this Saturday.
Transperth has advised commuters that trains will not run from Clarkson to Butler stations on February 3 between 7.15am and 6.45pm.
The last full-line services will leave Perth about 6am and leave Butler about 6.56am, and bus route 904 will run while the trains are cancelled.
Transperth advised passengers to allow extra travelling time as replacement buses may not connect with timetabled bus and train services.
Normal service is expected to resume from 6.38pm for trains leaving Perth and 7.26pm for those leaving Butler.
Call the Transperth InfoLine on 13 62 13.