Trucking companies believe a tunnel is the best option for a second Auckland Harbour crossing.
The Government has revealed five options for another link to the North Shore and is promising construction will begin before the end of the decade.
The National Road Carriers Association says a tunnel would provide the most resilience.
Its chief executive, Justin Tighe-Umbers told Morning Report a second crossing is urgently needed.
He says it's important there is a long term plan that can withstand the three-yearly election cycle to provide certainty.
