Someone told me last week that there’s no definition of stop in the Road Rules Dictionary. Edit: That same friend has now sent me this:
Strictly speaking, she’s wrong. There is a definition but it’s an inclusive and exclusive one, not exhaustive, and intended to apply to parking. It reads,
stop, in Part 12 and for a driver, includes park, but does not include stop to reverse the driver’s vehicle into a parking bay or other parking space;
1 Driver’s vehicle, park and parking bay are defined in this dictionary.
2 Part 12 deals with restrictions on stopping and parking.
The point my friend was really making was that unlike giving way, there’s no explicit instruction of what a driver is obliged to do under the Road Rules when they come to a sign like the one above (or even one marked stop). So if a driver slows down and satisfies themselves that there’s nothing coming before driving through an intersection, have they stopped or not?
I don’t know for sure, but I expect the police take the view that stopping involves coming to a complete halt. That’s what driving instructors teach, but I can’t find any authority that says this is what the law requires. There’s no definition in the Road Safety Act either, and the authorities on s 61 aren’t on point. I can find lots of cases where there was a factual dispute between the parties about whether the accused did stop or not, and many more where the accused admits the offence and the argument is about penalty (Dycer v Police  SASC 241, for example). I can’t find a case where the meaning of the term stop was properly argued.
I’m throwing down the gauntlet to readers. Are rolling stops legal?