I'm having a bit of a discussion about the merits or otherwise of U turns and the different rules that apply across state borders. I'm of the view that U turns should not be allowed unless clearly signposted. We're all familiar with the infamous case where a female police member did one because she forgot to bring cakes to work and a motorcyclist died (she got off). Should U turns be more highly regulated? Do many crashes, casualty/fatal occur because of people doing U turns without due care? And a quick poll (don't go googling it), what is the rule pertaining to giving way to traffic when doing a U turn?