- It has been revealed the business case for the $8 billion Great Western Highway development is being kept confidential.
- The project plans include the longest road tunnel in Australia through the Blue Mountains.
- The opposition and community groups say a project of this size needs to be justified to the tax payer.
"We can't believe that with a project of this size, of this magnitude, that they can actually get away without making the business case public."
"Communities want to know not only what the benefits are, and those are often well publicised, but also what the costs are and what the impacts will be on their local community,"he said.