Maglev trains are a high - speed maglev train system that employs a contact - free electromagnetic levitation, guidance, and propulsion system. It can reach a speed of over 500 kilometers per hour and is the fastest ground - based passenger transportation vehicle in the world today. It has the advantages of high speed, strong climbing ability, low energy consumption, low noise during operation, safety, comfort, no fuel consumption, less pollution, and relatively low cost. Moreover, it adopts an elevated structure and occupies very little arable land. Maglev trains mean that these trains use the basic principles of magnets to levitate above the guide rails instead of the old steel - wheel - on - rail trains. Maglev technology uses the electromagnetic force in magnets to lift the entire train carriage, getting rid of the annoying friction and the unpleasant clanking sound, and realizing a fast, contact - free and fuel - free "flight" above the ground.
Maglev trains represent the most fundamental breakthrough in railway technology since the advent of Stephenson's "Rocket" steam locomotive about 200 years ago. Maglev trains may still seem like a novelty today, but in fact, their theoretical preparation has a long history. The research of maglev technology originated in Germany. As early as 1922, the German engineer Hermann Kemper proposed the principle of electromagnetic levitation using magnets and applied for a patent for a magnetically levitated train in 1934. After the 1970s, with the continuous strengthening of the economic strength of industrialized countries around the world, in order to improve transportation capacity to meet the needs of their economic development, developed countries such as Germany, Japan, the United States, Canada, France, and the United Kingdom successively began to plan and develop maglev transportation systems.