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The
Physics of Magnetic Levitation
Physics 212X Spring 2011
John Dutton
04/12/2011
How Feasible are MagLev
Trains when energy costs are so high?
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Faster trips- high peak speed and high acceleration/braking enable average speeds three to four times the national highway speed limit of 65 mph (30 m/s) and lower door-to-door trip time than high-speed rail or air (for trips under about 300 miles or 500 km). And still higher speeds are feasible. Maglev takes up where high-speed rail leaves off, permitting speeds of 250 to 300 mph (112 to 134 m/s) and higher.
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High reliability-less susceptible to congestion and weather conditions than air or highway. Variance from schedule can average less than one minute based on foreign high-speed rail experience. This means intra- and intermodal connecting times can be reduced to a few minutes (rather than the half-hour or more required with airlines and Amtrak at present) and that appointments can safely be scheduled without having to take delays into account.
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Petroleum independence-with respect to air and auto as a result of being electrically powered. Petroleum is unnecessary for the production of electricity. In 1990, less than 5 percent of the Nation's electricity was derived from petroleum whereas the petroleum used by both the air and automobile modes comes primarily from foreign sources.
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Less polluting-with respect to air and auto, again as a result of being electrically powered. Emissions can be controlled more effectively at the source of electric power generation than at the many points of consumption, such as with air and automobile usage.
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Higher capacity-than air. At least 12,000 passengers per hour in each direction with potential for even higher capacities at 3 to 4 minute headways. Provides sufficient capacity to accommodate traffic growth well into the twenty-first century and to provide an alternative to air and auto in the event of an oil availability crisis.
Points above quoted from http://ntl.bts.gov/DOCS/TNM.html
Section 1.1.5 of the Final Report of the National MagLev Initiative
All of the points lead to
MagLev trains
being a very efficient means of travel. Hopefully someday we will
utilize this great technology.
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