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Levitation. Maglev trains have no contacts with the rails while they move forward. They are levitated on the guide-way with the help of magnetic forces. Levitation is the process by which an object is suspended against gravity in a stable position without any physical contact.
1) A large electrical power source. 2) Metal coils lining a guideway or track. 3) Large guidance magnets are attached to the underside of the train. A key difference between the maglev train and a conventional train is the structure of the engine. Unlike trains in the past that used fossil fuels to pull the engine across steel tracks, the magnetic field created by the electrified coils in the guideway track walls propel the Maglev Train.