I get this idea but the gains from this sort of "perfect drivers" scenario are pretty fuzzy. Maybe the biggest gains for this concept would be on the highway,

I get this idea but the gains from this sort of "perfect drivers" scenario are pretty fuzzy. Maybe the biggest gains for this concept would be on the highway, but in a city with pedestrians and cyclists, where there certainly does need to be stop lights, and much, much more cautious automated drivers, I'm skeptical the effect would be large.