Mayor Len Brown has blocked a councillor's bid to put funding for the proposed $2.4 billion central city rail link and other transport projects to a public referendum.
North Shore council member George Wood is "astounded" Mr Brown has rejected a notice of motion he offered for a meeting of the council's governing body this Thursday.
Mr Wood wanted the council to at least consider the idea of holding a referendum during October's local body elections, to ask Aucklanders if they supported a proposal to raise an extra $400 million a year by increasing property taxes or imposing tolls on existing as well as new roads.
But he said the Mayor had refused to allow councillors to debate the proposal.
"My referendum would have given the people of Auckland the chance to express their views on the quantum of money the Mayor wishes to spend," Mr Wood said.