The financial viability of the project was given as a secondary planning objective of the tunnel. Yet, it influenced important planning decisions as the project progressed through the approval process. Making the tunnel a viable business proposition for the private sector, and not spending government money, overrode some strategic concerns about the project's design.
We will illustrate this with three examples: allowing the Harbour Street exit, raising the median strip in the Cahill expressway, and reinstating the right turn from Cowper Wharf Roadway.