As south-east Queenslanders return to work, authorities have warned travel times could be twice as long due to major rail works.

All Brisbane train lines are running to a "special timetable" due to major track works and partial track closures.

Rail buses are in place but delays are expected on all lines until the end of the week, while track closures will remain in place for the Beenleigh and Gold Coast/Airport line until January 18.

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Stations at Nundah, Toombul, Wooloowin, Albion, Dutton Park, Fairfield, Yeronga, Yeerongpilly and Rocklea are closed.

Almost all commuters who would usually pass through those stations need to utilise bus transfers.