Urban chaos is a subjective term, to me it means humans in a frenzy, looting, running, fleeing, rioting, all of the above. It's a reaction to an event of some sort, either manmade or natural, that threatens a large population. Urban Chaos can be localized or city wide, like looting of gun stores by gang members in New Orleans. Hunker down if you can, if you need to move, be prepared with the skills and knowhow to become a chameleon......