РефератыИностранный языкMAMAGLEV Essay Research Paper MAGLEV CONSEQUENCESMagnetically levitated

MAGLEV Essay Research Paper MAGLEV CONSEQUENCESMagnetically levitated

MAGLEV Essay, Research Paper


MAGLEV CONSEQUENCES


Magnetically levitated ground transportation, or “maglev,” is an advanced mode of


surface high speed transportation whereby a vehicle gliding above a guide track is


suspended, guided, and propelled by magnetic forces. Because they never touch the guide


track causing friction, maglev vehicles can be designed to travel at extremely high speeds,


500 kilometers per hour (300 miles per hour), or more!


Americans traveled 3.2 trillion passenger kilometers (2 trillion passenger miles) by


car, truck, bus, and public transit, and 9.8 billion passenger kilometers (6.1 billion


passenger miles) on Amtrak. As populations have grown the traditional systems have


become stressed. Congestion on highways and at airports not only wastes time and fuel


and increases pollution, but constrains mobility to the extent that economic growth and


productivity are adversely affected.


Increased demand. Between 1980 and 1990, with deregulation and consumer


demand for fast inner-city travel leading to lower airline fares, commercial air traffic has


increased by 56 percent. Adding to the congestion and delay is increased commuter and


regional air traffic. Those short distance flights take valuable landing slots that could be


used for larger planes on more profitable, longer flights. With the maglev vehicles the


shorter trips excluding access time can be cut a lot. With a study of 16 major corridors of


travel, less than 300 miles in length, they studied how well the maglev vehicles could help,


and in 10 out of the 16 the time could be cut at least slightly. Also the cost of a maglev


trip will be less so that even with the longer trips where the maglev vehicles don’t have the


time advantage they will have the cost advantage.


Because land is costly and scarce, adding more highway lanes and building new


airports in or near our larger cities is becoming increasingly difficult. For example, adding


new highway capacity in urban areas typically costs more than $15 million per land mile,


and a new Denver airport is estimated to cost $3 to 4 billion.


Current transportation technologies are petroleum dependent, accounting for 64


percent of total petroleum

use. Without transportation alternatives that reduce petroleum


dependency, transportation related petroleum use is expected to remain high–36 percent


above our own US petroleum production, so we will have to get the oil from other


countries which will raise taxes on oil imports, possibly creating national security


problems.


High speed ground transportation systems are capable of approaching the speed of


airplane flight while offering some of the flexibility of the automobile, such systems can


provide added capacity in dense corridors around the world. Because of its very high


speed, it will be more likely to attract medium distance air travelers and highway drivers


than high speed rail.


Electrically powered, maglev will be virtually independent of petroleum based fuels


decreasing our need for foreign oil products. Maglev networks will help decrease air


pollution and lessen US dependence on foreign oil. Also, maglev systems will complement


existing transportation systems-by lessening the air traffic, highway traffic leaving the


extra routes free for businesses to use.


The American government has already put billions of dollars into the maglev


projects and prototypes. I believe that we should just go ahead and spend a little bit more


and work with the countries like Japan and Germany and build a maglev transport device


for America. I believe with the plans to run maglev tracks along heavily traveled


highways and along highly traveled air corridors. This will cut back the congestion of the


airports causing less of them to be made at a large cost to America.


One of the problems that we found was a low frequency hum caused by the


maglev vehicles running along the tracks. Which has not been proven. It is describes by


the hearers near the tracks in New Mexico as a low frequency hum that annoys them late


at night when the air is still. Another is the cost many people think there is no reason to


spend so much money on something that may not even take off in the American public nut


there have been unpublished surveys of people asking if they would switch to maglev


transportation if I was easier and will cost less than conventional travel methods that we


have today.

Сохранить в соц. сетях:
Обсуждение:
comments powered by Disqus

Название реферата: MAGLEV Essay Research Paper MAGLEV CONSEQUENCESMagnetically levitated

Слов:767
Символов:5181
Размер:10.12 Кб.