The Queensland government insists there will be no rail line closures in the state's southeast due to the extra demand on the transport system during next year's Gold Coast Commonwealth Games.
Transport Minister Jackie Trad on Friday said a full report into how services would be affected by the games would be released next month, but no closures were planned.
"Let me make clear, there is no modelling around closing lines for the Commonwealth games, and no lines will be closed," she told reporters.
"Let's wait until the report comes out, let's wait until the transport planners have done their work, and we will ensure that report is in the public domain."
But opposition transport spokesman Andrew Powell said the government did not have to shut down lines to cause significant disruptions for commuters in other parts of the southeast during the games.
"The devil might still be in the details, you could literally have one service coming in from Sandgate in the morning, and one going out in the evening, and justifiably say the track's not closed," Mr Powell told AAP.
"But every other service would be on a bus, and I think it's only fair southeast Queensland commuters are told up-front what to expect."
It follows stress testing done on the southeast Queensland rail network which identified the Commonwealth Games as a "key stress point" over the next 12 months "which will require careful management."