An independent survey has found many Aucklanders want a rail service on the new Waitemata Harbour crossing.
The Transport Agency released a report in March evaluating options for the new crossing but is yet to make a decision on whether it will be a bridge or tunnel.
A UMR Research poll released on Monday found 79% of 241 people surveyed think that train tracks should be installed on the new crossing, whichever form it takes.
A tunnel is favoured by 41% of those surveyed, while 38% want a new bridge and 12% do not want either.
Auckland Mayor Len Brown is backing a rail link to North Shore but the Government has indicated it is not a priority.
The survey has a margin of error of plus or minus 6.3%.