This is more about driving than roads per se, but in a month NZ will have the same rules about right of way at intersections as we do: http://www.stuff.co.nz/national/6404581/Give-way-change-imminent
looking at the diagrams in the bottom of the article, the old rule seems to be always give way to right and will become similar to UK rules, where right-turning traffic must give way to other traffic and side-road right turns must give way to normal right turns.