A review of all public road and rail projects worth $20 million or more and completed since 2001 reveals a 21% cost overrun. Worryingly, costs of bigger projects blew out more often and by more.
The states are primarily responsible for providing infrastructure, but lack the budgets, especially since the pandemic hit revenues. Making up the shortfall depends very much on the Commonwealth.
Once again, the state looks intent on pressing ahead with a huge road project without releasing a business case. Among the many concerns is the failure to look at lower-emission alternatives.