A Liberal National Party plan to double train services on a north Brisbane line was stolen from Labor, Queensland Premier Anna Bligh says.
The premier said on Sunday the LNP plan to run trains every 15 minutes off-peak on weekdays on the Ferny Grove line was initiated by Labor in 2010.
LNP leader Campbell Newman announced his policy on Sunday as a two-year, $18 million trial to double daytime off-peak train services on the line.
Ms Bligh said he had stolen a Labor idea.
"The suggestion from Campbell Newman of 15 minute running trains on Ferny Grove is a terrific one," she told reporters in Brisbane.
"We started building the line to do it in June last year and it will be ready in June this year."
Ms Bligh said reports on Sunday that Mr Newman was already planning his cabinet showed the party's increasing arrogance.
"These people think they have won the election without ever going to the vote," she said.
"Queenslanders expect people to work hard to win their vote."
The election campaign officially begins next Sunday.
In his announcement, Mr Newman said the trial would be expanded to other lines if successful.
"Weekday commuters currently wait 30 minutes for a daytime off-peak train on the Ferny Grove line," Mr Newman said in a statement.
"But under the LNP's plan they will barely need a timetable on weekdays with trains to run every 15 minutes during the day."
The Ferny Grove line crosses the key Brisbane electorate of Ashgrove which Mr Newman will contest in the state election on March 24.