Maglev trains do not have wheels or rails. As shown in Figure 3, they have guideways, and they float down these guideways without ever touching them.
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Six commercial maglev systems are currently in operation around the world. One is located in Japan, two in South Korea, and three in China. In Aichi, Japan, near Nagoya, a system built for the 2005 World's Fair, the Linimo, is still in operation.
Due to the huge cost of running a maglev over very long distances, the hovering trains have been ruled out for the planned HS2 line connecting Manchester with London and Birmingham by 2033.
Thanks to linear induction, there are no moving parts in the propulsion system, and the magnetic suspension means that maglev trains do not touch the ground.
This reaction between the magnets creates a magnetic field. The field lifts the train off of the track. This lets air flow between the train and the guideway. The trains never touch the track; they hover just above the track.
Trains typically have wheels that are connected together by a fixed axle, meaning that the wheels on both sides of the train always turn at the same speed. This can present problems when turning, because one wheel has to cover more distance than the other.
The Glacier Express is the world's slowest train, taking more than eight hours to travel between Zermatt and St. Moritz in Switzerland at an average of 18mph. Along the way, it passes over nearly 300 bridges, travels through 91 tunnels and takes in endless stunning Alpine views.
With high-speed rail, train travel is always faster than driving. In many cases, it's even faster than flying, once you factor in the whole air travel song-and-dance. And if you do need to catch a plane, trains make it easier to get to the airport.
Book travel across EuropeThe HS1 line is used by Eurostar services and Javelin commuter services from Kent, although the latter have a max speed of 140mph. Across the rest of the UK, trains have a maximum operational speed of 125mph, although many are capable of speeds of up to 140mph.
According to the National Transportation Safety Board (NTSB), since 1975, there has been an average of 1.3 train accidents per year involving fatalities. Compare that with 2,584 aviation accidents and 700 bus accidents over the same time period.
The Superconducting Maglev is equipped with a braking system capable of safely stopping a train traveling at 311mph. Regenerative braking is normally used for deceleration, but if it becomes unavailable, the Superconducting maglev also has wheel disc brakes and aerodynamic brakes.
Looking at traffic fatalities per mile traveled in the U.S., analyst Todd Litman found that riding commuter or intercity rail is about 20 times safer than driving; riding metro or light rail is about 30 times safer; and riding the bus is about 60 times safer.
A magnet or properly assembled array of magnets can be stably levitated against gravity when gyroscopically stabilized by spinning it in a toroidal field created by a base ring of magnet(s).
Maglev trains work on the principle of magnetic repulsion between the cars and the track. The word maglev is actually a combination of the words “magnetic” and “levitation.” The magnetic levitation, or floating of the train, is achieved through the use of an electrodynamic suspension system, or EDS.
The primary challenge facing maglev trains has always been cost. While all large-scale transportation systems are expensive, maglev requires a dedicated infrastructure including substations and power supplies and cannot be integrated directly into an existing transportation system.