Under australian motor law (on phone so I'm not going reference hunting but you can look it up) anywhere you can drive that isn't explicitly private (such as a

Under australian motor law (on phone so I'm not going reference hunting but you can look it up) anywhere you can drive that isn't explicitly private (such as a driveway or a fenced off road on a farm) is a public road - this includes drivethroughs and car parks (even the mutistory carparks you have to pay to get in - if you can pay, as a member of the public, to get in then it's a public road).