The billboards, which come less than four months before the next council election, feature images of Mr Schrinner, along with LNP councillors Tracy Davis, Adam Allan, and Danita Parry.

...

The billboards declare that Mr Schrinner and the councillors are "backing a tunnel to ease congestion" and urges residents to have their say.

But the proposed tunnel they are referring to is a potential tollway being pursued by the state Labor government, which would run underground on Brisbane's northside, linking Kedron to Carseldine.