China's Shanhai Maglev train is currently the world's fastest, able to hit 311 mph with a top operating speed of 268 mph. As proposed, the Hyperloop would more than double that speed.
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Background on Maglev Train, Vactrain, HyperloopThey are even faster than regular maglev trains, but are even more expensive to build. Hyperloops are a proposed type of transportation that would use a low-pressure tube to send people or cargo through a tube at high speeds.
Maglevs have several other advantages compared with conventional trains. They are less expensive to operate and maintain, because the absence of rolling friction means that parts do not wear out quickly (as do, for instance, the wheels on a conventional railcar).
They've talked a lot about making the whole 'tube-track' a vacuum, so the vehicle(pod?) can go high speeds without the issue of air resistance. The problem with this design, is that having even a small volume of vacuum is often difficult, so having MILES of tube-track with no leaks would be almost unthinkable.
As noted above the Maglev trains are capable of traveling at speeds nearly twice as fast as the bullet trains. However, the use of such extreme speeds in commercial travel seems unlikely. Whereas Maglev trains travel at speeds of up to 400 or 600kph, bullet trains travel at a modest 320kph.
There are several disadvantages to maglev trains: - Maglev guide paths are more costly than conventional steel railway tracks. Because the magnetic coils and material used in this setup are very costly. - Maglev trains require an all-new set up right from the scratch.
Cost concerns over innovative railThe 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.
Maglev's unit capital costs surpass those of New HSR by lesser, but still significant, amounts, ranging from $11 to $19 million per mile in recent studies. Thus, the Maglev technologies of today are the most expensive form of HSGT in terms of up-front investment.
Hermann Kemper (* April 5, 1892 Nortrup, Germany, in the district of Osnabrueck, † July 13, 1977) was a German engineer and is considered by many the inventor of the basic maglev concept. In 1922, Hermann Kemper began his research about magnetic levitation.
They concluded that “estimates of energy consumption, passenger throughput, and mission analyses all support Hyperloop as a faster and cheaper alternative to short-haul flights [of 250 to 500 miles].” Hyperloop's benefits really kick in, though, when you consider its environmental benefits.
Hyperloop refers to a Maglev train system where maglev “pods” run through evacuated tubes, removing air resistance and allowing for projected speeds of 750+ mph.
Maglev trains are “driven” by the powered guideway. Any two trains traveling the same route cannot catch up and crash into one another because they're all being powered to move at the same speed. Similarly, traditional train derailments that occur because of cornering too quickly can't happen with Maglev.
As for the fastest speeds ever reached by a train, the honour of fastest train in the world goes to the L0 Series SCMaglev in Japan. On its test track this Japanese maglev train reached a top speed of 603 km/h or 375 mph.
For passengers to be able to breathe in a hyperloop, the pods would need to be sealed and pressurized with air. If the seals or internal air supply on a pod somehow failed, exposing passengers to the near-vacuum of the sealed tube, there could be a risk of suffocation due to lack of oxygen.