Don't know if this has been mentioned before, but even though a right turn from King William Street into North Terrace (Glenelg to East End), or a full grand union is likely unnecessary. I would have thought that a right turn from North Terrace into King William Road (East End to Festival Theatre ...

This link has details about what types of roads will be used (towards end of document):
http://rit.statedevelopment.sa.gov.au/u ... 4524800023

Don't know if this video of the Darlington upgrade has been posted on here yet.
http://vimeo.com/164522827

Looks like there will be another southern interchange that wasn't on the DPTI plans.
https://twitter.com/7NewsAdelaide/statu ... 3984605185