Highways are a Series of Tubes

Senator Ted Stevens said "The Internet is a series of tubes."
Prof. Carl Ross from University of Portsmouth would like to see highways as a series of tubes.

Professor Carl Ross's innovative concept for an enclosed 'double-decker highway' would not only help cut road congestion but also significantly reduce the levels of harmful gases emitted by cars being released into the atmosphere.

Open double-decker highways already exist in Mexico City, but the mechanical engineer's vision sees the roads walled and roofed in soundproof plastic to trap carbon dioxide.

The poisonous emissions would then be blown into filters or 'scrubbers' much like those used on submarines and space shuttles for decades.