It is easy to build a small levitating train when you have access to superconductors and liquid nitrogen. These trains work on a very different principle from the Japanese train, since they use the pinning properties of superconductors, and do not require wheels at a low speed. Research is still going on to build actual trains working on this principle, in order to use high temperature superconductors (and hence liquid nitrogen that is easier to manipulate and cheaper than liquid helium) and create levitation at a small speed. If these efforts pay, we might have metro-maglevs in the future…
