This is one of those incredibly bad ideas that everyone seemed to have at the same time. Maybe it had to do with the coincidence of a fad for aviation and one for skyscrapers. Whatever the reason, they never really address the catastrophic consequences of a crash, nor the problems of traffic management.
Airplane Field for Tall City Buildings
New invention is expected to solve the problem of providing aviation facilities for large cities. Platforms are designed to operate on the roofs of large buildings and permit happy landings and easy take-offs.
AN invention of J. Herbert Jones of Brooklyn, N.Y., is expected to revolutionize the problem of airplane landings and take-offs in restricted areas, such as on the tops of large buildings, decks of ships, water fronts along the coast, or small land areas.