My understanding was that most road rules are state-based, not federal.

I’m any case, I’m 100% certain that in Victoria, you can ways chuck a uey unless a sign prohibits it. Doesn’t matter if there are traffic lights or not.

It’s definitely something we have to be mindful of when driving interstate! I think a lot of Vic drivers on holidays get done for illegal U turns.

I’m pretty sure you don’t have to signal when exiting a roundabout in Victoria. We might be the outlier though. In Vic it’s also legal to U turn anywhere, unless a sign specifically prohibits it.