"In the future, all transportation between cities will be above ground, through anti-gravity magnetic systems, and the hundreds of billions of dollars spent on maintaining and building surface roads will be free for education, health and other useful purposes.
"Moreover, the enormous amount of prime real estate and arable land that is now sitting underneath all that concrete [and asphalt] will be available for agriculture and recreation."
Source: Hidden Truth - Forbidden Knowledge by Steven M. Greer M.D., page 305.