Indian Driving also = "Emergent Behavior" ?

From the Boston Globe article, "How Hanoi's chaotic traffic system fascinated, and almost killed, MIT computer-science guru Seymour Papert":

Strangely, shortly before the accident, Papert had been discussing how to build a computer model of Hanoi's notoriously chaotic traffic. He found it an interesting instance of a theme closely associated with his work: "emergent behavior," or the way that large groups of agents following simple rules, with no central leader, can spontaneously create sophisticated systems and activities. Examples include schools of fish, anthills, bee swarms, and, apparently, Vietnamese motorbike drivers.

Why only Hanoi..try this example of Indian Driving...