The Employers & Manufacturers Association says the Government needs to look at a railway tunnel in central Auckland as an investment, rather than a burden.
A report this week found that a rail tunnel through the central city is the only viable long term option for Auckland's transport demands.
Transport Minister Gerry Brownlee has said the report is just a valiant attempt to make the project stack-up.
But EMA chief executive Kim Campbell said that attitude is not going to help solve the problem and the Government needs to look at the tunnel as an investment.
He said the roll-on effects, including jobs, investment and a more efficient city, can only be good for the economy and the Government.