Architecture
The station's shell-shaped roof is derived from the section of a torus, as the eventual shape of the roof resembles a cylindrical cut perpendicular to the torus, while the shell roof is supported by two pairs of "Y" shaped twin columns separated by a 70 metre span in between. These columns are unique in that they are built outside the station platform and behind the train tracks.
Another distinctive feature is the large disc situated at the top of the glass elevator shaft, as seen in the photo on the right. The disc overhangs and terminates one end of the toroidal curved roof form, and contains an elevator shaft for the usage of the handicapped or needy. Its unusual shape lead some people to comment that it looked like a spaceship or UFO. This unique disc is the first of its kind in Singapore, although it was also used for the New Supreme Court building in downtown Singapore, which was opened in 2006.
Read more about this topic: Expo MRT Station
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