I am advised:
(1) to (5) and (7) The WestConnex Delivery Authority (WDA) was dissolved on
1 October 2015. The WDA was a public subsidiary corporation of Roads and
Maritime Services (RMS) constituted in accordance with section 55C of the
Transport Administration Act 1988. Sydney Motorway Corporation Ply Ltd (SMC)
and its subsidiaries are corporations registered under the Corporations Act
2001. Further information on the relationship between RMS, SMC and WDA is
available on the WestConnex website.
The SMC is responsible for delivery of the WestConnex scope of works for
stages one, two and three. RMS and Transport for NSW are responsible for
broader network integration property acquisition, planning approvals and
guiding the update of the business case.
(6) Refer to my answer LA 1889.