>Arriving at the exact same time is comparatively rare, and the computer will know who arrived first. I recently moved to north america and heard that same 'wh

>Arriving at the exact same time is comparatively rare, and the computer will know who arrived first. I recently moved to north america and heard that same 'what if everyone gets to the intersection at the same time' quandary. In Australia, the rules say the person to your right always goes first, regardless of who actually got there first. If you pull up and then a second after someone else pulls up to your right, they now go first instead. It can be a little annoying in busy areas but I think that's also why we also have so many round abouts. I've always been curious if it's a written or unwritten rule in north america, the whole 'he who gets there first goes first' rule.