> So let's say you want to remove the traffic lights and create a high-speed continuous-flow system comprised of lightweight energy-efficient micro-cars. How co

> So let's say you want to remove the traffic lights and create a high-speed continuous-flow system comprised of lightweight energy-efficient micro-cars. How could you make this compatible with human habitation? By removing the roads entirely, and running the vehicles on cheap segregated infrastructure, either below or above ground. Or, bridges.