Some people believe that these trains could be the future of transportation. They are quiet and do not need eletricity or diesel fuel for power. Since maglev train do not need engines, there is no pollution. Moreover,maglev train have achieved a top speed of 501 km/h. But others dissgree. One very big disdvantage of maglev train is that they cannot run on normal train track. Unlike normal high-speed train that operate in france.japan,and germany,maglev trains need their own special track.it would be very expensive to train. This means building over 50,000 km of track in many european counities.