$1 Trillion for Local Circulation in Cites: Today there are 275 cities with populations over 100,000 in America. In 20-years there may be 400. Adding another 50,000 miles of urban Driverless technology both in elevated and ground-based systems is an average of 125 miles per city. As the Driverless technology spreads, cities will spread out more like Los Angeles than New York. Density will be lower, and stations will become the focal points. Someday ground based cars can drive on and off the elevated systems. Until then a transfer will take people to any destination within a mile of the stations using dedicated paths for ground based driverless vehicles. These improvements and circulators are envisioned to be paid for and maintained by local “Improvement Districts” around a mile of each station.