Here is an artist’s conception of the amazing multiple highway plan of Dr. John A. Harriss, former health commissioner of New York City. The plan calls for six traffic levels. Each level is for designated traffic. There is an express traffic level. two one-way levels for bus traffic and other plans to expedite traffic. This proposal of Fr. Harriss is gaining favor as one of the most feasible of many schemes advanced to handle the constantly increasing motor and pedestrian traffic. – Inventions for March, 1930