One man's chaos is simply another man's grace. The rules of the road were written to ensure that we can travel along the highways in an orderly fashion.
Some of these rules we just take for granted. I mean, whoever actually thinks about driving along the right hand side of the road (or left hand if you're in Britain)? It's just something that you do without thinking.
If a pedestrian is walking across the street, do you actually take the time to think if you or he has the right of way? At least in the USA, you always give the pedestrian plenty of space and just stop until he's passed by. You don't really think about it.
So, watch this video of traffic in Vietnam...
Vietnam is obviously a different society, one that seems to have fewer rules along the roadways, despite what we see as a hardline totalitarian regime. What appears to be a very chaotic intersection is probably something graceful to them.
Vietnamese riders obviously have to have a wide field of vision, and a deep field of vision as well, in order to navigate through that. It shows that when humans are faced with chaos, they learn to become more vigilant, and diligent.
In the United States, we expect drivers to stay on their side of the road. We expect drivers to stop at a stop light. We expect drivers to yield to pedestrians. Our system demands that we place a lot of trust in each other, in order for things to work smoothly.
I'm sure traffic accidents still happen in Vietnam, just as they still happen here in the USA. But considering Vietnam has so many more motorcyclists, I'm betting the number of accidents per miles traveled is far fewer than in the USA.