Tadao Ando, the designer of Shibuya Station, told Wallpaper magazine "It's composed of a central void contained inside an egg-shaped shell and aims to reduce the station's dependency on air conditioning equipments by letting the outside air blow into the underground space, creating a natural ventilation system that is energy saving."
As the London Underground has very little dependency on air conditioning equipment (mainly because it currently doesn't have any - apart from comedic giant fans), I doubt whether we'll be seeing this in London any time soon.
Ando made some interesting points about orientation in the subway & how spatial improvements could help this:
"The existing underground stations in Tokyo are generally very confusing, generating a sense of disorientation, making it very difficult to find your way and getting around. This is due to the fact that it is very difficult to recognize your own position in relation to the street level's world and in addition to the constant shift of direction you are forced to make in the labyrinthine underground world. In order to help people's orientation in this underground world, giving them a sense of spatial perception and improving the functionality of the station, I created a 15 metre central void from concourse level B2 to the platform level B5, and wrapped it all up within a symbolic egg-shaped shell."
The station design looks amazing although not sure what the mirrored parts would do to my sense of spatial perception. Environmental blog Planet Green n Pink said "The idea behind the design was to keep a continuous flow of energy moving smoothly. That translates to a positive experience for the traveler and very good Feng Shui."
Good Feng Shui & a positive energy experience on your commute, please can have some Japanese design on London's Tube stations.