There's a simple solution to this, known since WW2: slash speed limits and enforce them. Just about every externality of the car scales super linearly with spe

There's a simple solution to this, known since WW2: slash speed limits and enforce them. Just about every externality of the car scales super linearly with speed. Furthermore, in reality, except for the interstate, ETA does not scale inversely with speed limit, but a bit better (kids try this at home!). On top of that, traffic is bounded by the bandwidth-latency product just like network traffic is.