The best mechanism I’ve found to cope with Las Vegas traffic is to assume:
10% of drivers never took driver’s ed.
10% of drivers are txting or browsing the internet while driving.
10% of drivers are very intoxicated.
10% of drivers are in the midst of some kind of emergency.
10% of drivers are blindfolded and being directed by a passenger.
And 5% of the time there will be something completely unexpected in the roadway in front of you — like a ladder, scuba gear, or a life-sized plastic kangaroo.
If you assume these things, it becomes almost a game to spot which is which — while also trying to survive the roadway.