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MagneMotion Maglev M3...

The M3 Urban Transportation System...

Submitted to the Federal Transit Administration As Part of FTA Project MA-26-7077 MagneMotion Document UM-1, Version 1 January 8, 2003...

In the last 35 years maglev has changed from an engineering curiosity to the basis for commercial systems now being built in the U.S., China and Japan. German and Japanese efforts over many years have demonstrated maglev's potential for safe, fast and economically viable transportation but potential users have not been impressed enough to install a major commercial system until very recently. The lack of commercial support has been partly due to emphatic statements by critics from academia, industry and the government that maglev is too expensive in comparison with other types of guided transportation. These criticisms are not based on valid technical arguments but are akin to the criticisms of railroads that were made in the early 1800s when the "smart money" was being invested in canals. Unfortunately, maglev enthusiasts have not helped the cause by often focusing more on the technology than on what it can deliver to the user. A principal problem with past maglev efforts has been an excessive emphasis on speed and technology without taking a system approach to solving a transportation problem. With this in mind, MagneMotion has stressed the system approach and examined all aspects of the problem of providing high quality and cost effective transportation with maglev by taking advantage of recent advancements in enabling technologies. For U.S. applications MagneMotion believes a key market for maglev today is in the low and middle speed region now dominated by light rail, rapid transit, commuter rail and all versions of Automated People Movers (APM). The MagneMotion Maglev system, called M3 , is currently focused on speeds up to 45 m/s (101 mph) but with minor modifications the system could compete with any guided system including ones with both lower and higher speed capability. A fundamental property of magnetic structures, called Earnshaw's Theorem, is that no static configuration of magnets can be levitated so as to be stable in all degrees of freedom. It is possible to be stable in all but one dimension, so it is possible to have a magnetic suspension stable in the vertical direction but then it must be unstable in a lateral direction. Such structures have been proposed but they tend to be heavier and more complex than if electronic control is used...

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M3 Urban System (656 kb pdf) userfiles files maglev pdf m3 urban system

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