The claim here is that even with more cars on the road traffic can be reduced if cars are able to communicate with each other. E.G. all the cars stopped at a re

The claim here is that even with more cars on the road traffic can be reduced if cars are able to communicate with each other. E.G. all the cars stopped at a red light accelerate at the exact same rate as the light turns green, no more brake checking/rubbernecking causing traffic on highways. I think in the long run this effect will probably exist, whether it overpowers the increased number of road users remains to be seen.