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Science Technology

Japan to Launch Maglev Trains by 2025 103

SpeedyTrain writes with a link to a story on the Mainichi Daily News site about the future of mass transit in Japan. Despite problems with Maglev technology in test-bed scenarios around the world, Japan has committed to building a line between Tokyo and Nagoya by 2025. The experimental system will allow trains to run at up to 310 miles an hour. "The new magnetically levitated, or "maglev," trains would slash the 100-minute travel time down the country's busiest transportation corridor and are envisioned as a successor for Japan's iconic bullet trains, or shinkansen, first introduced to the world in 1964 ... [a] spokeswoman declined to give an estimate for the cost of linking the capital with the Nagoya area about 269 kilometers (168 miles) to the west. But Kyodo News agency said the whole project would cost about 9 trillion yen (US$76.3 billion) and be divided between the company and the central and local governments."
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Japan to Launch Maglev Trains by 2025

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  • Spin (Score:4, Interesting)

    by fiannaFailMan ( 702447 ) on Friday April 27, 2007 @04:46PM (#18906415) Journal

    Despite problems with Maglev technology in test-bed scenarios around the world,...
    Nice little bit of spin there. Was there any technology ever devised that didn't have problems in testing?
    • I agree fiannaFailMan. Some people need to live out their entire lives in a padded room seeing how any kind of risk seems to get them in a tizzy.

      Finally, a country has the BALLS to do something novel in the public transport arena. Wish we had more people in the world like the Japanese who've actually gotten over themselves and are quietly progressing without any fuss.

    • Re:Spin (Score:5, Informative)

      by SnowZero ( 92219 ) on Friday April 27, 2007 @05:09PM (#18906683)
      No kidding. Japan already has some maglevs, including a high speed test prototype, and a "slow" one called Linimo [wikipedia.org] which is already in Nagoya. Linimo is already being used for public transport, and I can tell you it works just fine, because I rode on it numerous times. I doubt it was cost-effective to build, but I'm glad that some nation is stepping forward to push the technology, as that's the only way it will become practical.
      • by archen ( 447353 )
        How do these things hold up to earthquakes anyway? I mean obviously Japan is in an earthquake zone and they already use maglevs, but it seems like the tolerances must be very small in such tech as far as the rails go.
        • Maglev trains don't have rails. The maglev I saw in Japan has wheels on the bottom that retract once the train gets up some speed. The train bottom sits inside a U-shaped track, which has superconducting magnets on both sides and the bottom. These magnets are switched between North and South to match up with the magnets on the train, to pull and push the train along. To steer the train the magnets on either side of the U shape either push a bit or pull a bit to keep the train centered. There is some bi
      • Funnily enough, this other story was out last week: http://news.bbc.co.uk/1/hi/scotland/glasgow_and_we st/6577311.stm?ls [bbc.co.uk] So, at least one other "push" to use the technology for the public good. Sure, it might (see probably) not happen, but it would be great to travel from the East to West coast of Scotland in 15 minutes!
    • Over here in Academia, everything works perfectly.




      In theory.

  • I think I'd rather have the trains.
    • Funny thing is that it really is not the war that is hurting us. We can bear it for sometime. What is really killing us the monster deficits that are being ran up, the absolute corruption that is occuring in the war, the corruption of the politicians, etc. IOW, the problem is the corrupt and inept admin.
      • Actually Japan has one of the highest debt to GDP ratios in the world, so it doesn't seem to be bothering them much as they are earning Slashdot's praise.
    • by Rei ( 128717 ) on Friday April 27, 2007 @06:31PM (#18906985) Homepage
      You got me curious, so I did a little math.

      Cost of the war so far (not counting amount we'll waste before this blunder is done with): $420B [nationalpriorities.org].
      Cost of superconducting maglev track per mile in the US for long distances: $15-20M [washington.edu]. Let's say 20M.
      Miles we could build: 21,000
      Distance across continental America, east to west: ~2500 mi
      Distance across continental America, north to south: ~1250 mi

      For that money, we could build ~5 east-west cross-country routes and ~7 north-south routes, or 4 and 9, or whatever. Another way to put it: we could add almost half of our entire length of interstate highways in superconducting maglev. Other methods, like inductrac, could be much cheaper and cover more miles.

      Or, we could use the money to kill a bunch of brown people overseas for no good reason. Either way works, I suppose.
      • Re: (Score:1, Flamebait)

        by soupforare ( 542403 )
        What about the cost of bailing out MAGTrak every couple years because no one uses trains?
        • Re: (Score:3, Insightful)

          by Y-Crate ( 540566 )

          What about the cost of bailing out MAGTrak every couple years because no one uses trains?
          When your national rail company's trains are largely at the mercy of the scheduling whims of private freight companies there is a strong disincentive to use them.

          Add to that the pitiful funding for everything from food to maintenance and what do you expect? Amtrak barely gets enough money to keep the lights on.
        • by tap ( 18562 )
          It would be less than the airline bailouts were.

          I've ridden the Shinkansen in Japan. People use them. In Japan we were able to able to meet a friend for breakfast in a city over 150 miles away literally one hour after we walked out the door of our hotel. You can't do anything like that in the United States with our 19th century transportation infastructure. We had trains in this country that ran over 100 mph in the 30s and 40s. Now amtrack's fastest trains go 80 mph and they can't even run them that fa
  • by tecker ( 793737 ) on Friday April 27, 2007 @04:54PM (#18906503) Homepage
    Never underestimate the Japanese. If they set a firm goal that is obtainable then watch out. In the past when they set a goal for themselves they usually achieve it. 20 years is plenty of time to get the technology figured out. The interesting thing will be how they pull it off.

    Here is another thing to think about. This opens the door for small startup or research groups that could potentially win a contract if they can create a viable working and safe system. If the little guy can do that then there is some money to be made from the technology both there and around the world. By announcing this the get the people who think they can do it better then the others. Think of the chance and getting your technology in place there like the Xprize for space flight.

    I would be more surprised if they didn't pull this one off looking back at history.
    • Re: (Score:2, Informative)

      by zergl ( 841491 )
      Never underestimate the Japanese. If they set a firm goal that is obtainable then watch out. In the past when they set a goal for themselves they usually achieve it. 20 years is plenty of time to get the technology figured out. The interesting thing will be how they pull it off.

      The technology is actually already figured out. [wikipedia.org]
      And apart from some accidents caused by human errors it works fine and already is used commercially in Shanghai.
    • by samkass ( 174571 )
      The 1980's called and want their Japan-can-do-no-wrong attitude back.
    • > Never underestimate the Japanese. If they set a firm goal that is obtainable then watch out.

      I think you misunderstand the process at work here: a bureaucracy holding onto its budget. In Japan, budgets, once granted, are uncuttable. MagLev research would continue, ad eternum, regardless of the possibilities of success, with an expanding budget, until some sort of "budgetary catastrophe" (they've already rebuilt their test tracks due to accidents at enormous cost - so I don't think a technical failure
  • Thats a huge amount of money to lay a short track. How do they plan to recoup initial costs of $454 Million a mile of track?
    • by suyashs ( 645036 )
      That's why its partly govt funded...they believe that the economic benefits will recoup the costs, even if the track itself doesn't make money, the time saved in travel will.
      • Well that's some poor economic logic.

        If it really would improve the economy enough to offset the costs, then the economy should be able to bear the cost of building it through the ticket prices.

        Even if they believe that no private company will take the risk, they should expect to get their investment back directly, instead of making it a make-work subsidy. We've got the same problem with make-work programs here in the states, the only one of which you'll find actually worked out was the TVA, which not coin
    • by Lars T. ( 470328 )

      Thats a huge amount of money to lay a short track. How do they plan to recoup initial costs of $454 Million a mile of track?

      Wow, what a math genius - you can divide total cost of project by length of track! And you don't even have to care about all the rest, like trains and stations!

      But to answer your question, for one they expect the train to be equally profitable as the Shinkansen. They also expect high income from the services and stores at the stations. See this report [jrtr.net] named "Features and Economic and Social Effects of The Shinkansen" for what they got out of the huge amount of money they paid for the Shinkansen.

    • Re: (Score:2, Insightful)

      by Diamond Tree ( 51604 )
      Cost is no object. Profit is unnecessary. All that matters is that construction continue. Japan has dammed all but maybe one river (many of them multiple times), built tunnells through mountains so that villages of less than 100 people can have a bullet-train stop(!! move over Sen. Stevens !!), paved many a riverbed in concrete, eliminated dirt from the cities (almost every square inch is paved), etc., etc.

      I recall visiting a dam in Nagano that had special turbines so the water could be pumped back *up*
  • If the commute lowers from two and a half hours to an hour, couldn't workers commute from the fourth largest city to the largest city, meaning it would grow even bigger? Is this a scientific attempt, a transportation time reduction attempt, or an economy boost attempt?
    • by Rei ( 128717 ) on Friday April 27, 2007 @06:37PM (#18907047) Homepage
      All of the above.

      Tokyo growing further... hard to picture. If you've ever been there, the city just seems to go on and on forever. Check out the satellite view -- look at how it stretches its tendrils [google.com] across the country. To give a sense of how zoomed out that is, here's the state of Connecticut [google.com] at the same zoom level.

      In Tokyo, I remember never having a sense of where in the city I was. You just sort of disappear into the subways and reappear in a different setting.

      • In Tokyo, I remember never having a sense of where in the city I was. You just sort of disappear into the subways and reappear in a different setting.
        I just go by where on the Yamanote line I am. No worry about getting on the wrong direction, you'll get there eventually. Not quite like getting on the 405 heading south when you should have been going north. You can loose hours that way.
  • 581 km/hour traveling 269 kilometers makes the trip makes the trip about 28 minuites, not counting speed up time. I'm sure quite a few people could use those 70 minutes per day.
    • Re: (Score:3, Insightful)

      by Timesprout ( 579035 )
      I'm sure plenty of Japanese companies see this shortened commute as a great opportunity to get an extra hours work out of their employees.
    • by ghoul ( 157158 )
      Actually that would be 70 times 2 as the commute is both ways. 2.5 hours extra time is nothing to be sneezed at. Of course train commute time is not really wasted time. Its not as if you have to keep your eye on the road. You can use it to sleep. When I was going to college in Delhi I had a 2.5 hour bus commute each way. it was either that or driving 1.5 hours on a bike while breathing smoke all the way. At least on the bus I could catch up on my sleep even if I had to change 4 buses to get home. By leaving
      • by vakuona ( 788200 )

        You can use it to sleep
        Which may not be such a good idea on a train that will stop for less than a minute at your destination station.
        • by KDR_11k ( 778916 )
          Then you just leave at the next station and take the train in the opposite direction.
        • by ghoul ( 157158 )
          That is why wristwatches and PDAs have alarms. Since bullet trains run pretty much to timetable you can get on set your alarm for 5 minutes before your station and go to sleep.
  • by KonoWatakushi ( 910213 ) on Friday April 27, 2007 @06:25PM (#18906899)

    While the article is scarce on technical details, that is an immense sum of money. (Perhaps, in part, due to the landscape?) If the numbers at Wikipedia are correct, it is seven times the cost per unit length of the Shanghai TransRapid track. It would seem unimaginable for an Inductrack [wikipedia.org] system to cost this much though.

    So, I have to ask, why? Inductrack is a brilliant design, and would make Maglev's much cheaper and better in just about every way. Inductrack is a completely passive levitation system, which requires no electromagnets or control circuits to maintain stable levitation. You can't buy a finished system today, but the theory is proven, and it would almost certainly be a more sensible investment.

    Inductrack is a direct extension of ideas which made possible the passive magnetic bearings in earlier Flywheel Energy Storage [wikipedia.org] systems. Basically, it uses a linear Halbach Array [wikipedia.org] instead of a cylindrical one. Very cool technology, all around.

    • Well... Inductrack is an American invention. it is unimaginable for it to be used in Japan where they take great prides in their high-speed train technologoes including their design of the superconducting maglev trains.

      It is unfortunate that there is not even a short commercially operating Inductrack in the US. Maybe the car companies should be blamed.

      • by Echnin ( 607099 )
        Wow, you need to stop crying about the fact that the Xbox sold poorly in Japan. Get over it! This myth about Japanese "pride" keeping them from using foreign technologies is absurd.
  • Bargain... Just like most other transit projects...

     
  • I love riding the MagLev in Shanghai - most of the passengers are usually Japanese tourists, snapping photos of the overhead display as it reads higher and higher speeds until that magic number of 433 - running the length in 7 minutes and 20 seconds. The fun is over much too soon... [wangjianshuo.com]
  • by pioneerX ( 830117 ) on Friday April 27, 2007 @07:20PM (#18907491)
    The track should be routed via Shizuoka and Nagano so it can double as a high-energy collider. Though probably not at the same time.
  • Re: (Score:2, Informative)

    Comment removed based on user account deletion
  • From Pudon international airport to the center of Shanghai. It's about 30 km and takes 7 min. It is a VERY cool ride. Perfectly balanced you do not feel the G's at all. In the 2 curves it seems to be leaning som 25 degrees but do to the perfecly balanced speed you can not feel it. It is a very strange experience, passing the expresse way and not being able to see what way the cars go because you are soooooo much faster. The chinese are also building MagLev from Shanghai to Hangzhou and down along the south
  • Seems to me that a terrorist hit on one of these trains would be much easier than hitting an airliner. At those speeds, a lot of damage could be done. And the terrorist would not even have to kill himself in the process.
    • Re: (Score:3, Interesting)

      by ghoul ( 157158 )
      The reason the Japanese can concentrate on development without worrying about security is that they dont go into other countries and piss off a bunch of other people. Do you really think if the US military was not deployed in 150 countries all around the world Americans would still have to worry about terrorism? I dont think so. So a bunch of Muslims want to kill a bunch of Jews. What do we care. If America would just get out of the middle east and stop supporting Israel with money and arms I am sure the Mu
    • If you wanted to piss off the Japanese (probably not wise), you wouldn't start with the Shinkansen or similar. There are plenty of lines in & around Tokyo that are more critical. Its also pretty hard to steer a train into anything worthwhile. Some sort of physics thing apparently.
    • by KDR_11k ( 778916 )
      High speed trains usually have loads of detectors for anything blocking the rail and might actually be harder to hit than, say, a regional train doing 180 km/h during rush hour. It's not like maglevs are any more vulnerable than regular trains. Their speed doesn't really matter since you won't be able to direct it at any target and all you get done is kill the passengers which you can do just fine on today's trains already.
    • by Lars T. ( 470328 )

      Seems to me that a terrorist hit on one of these trains would be much easier than hitting an airliner. At those speeds, a lot of damage could be done. And the terrorist would not even have to kill himself in the process.
      All else aside - why exactly would a terrorist need to kill himself to bring down a plane?
  • Japan doesnt really need any more faster trains. At the rate their population is falling soon even Tokyo will have vacancies at reasonable rents so the need for going further and further out is not really urgent. But India and China with their huge populations and limited land (if you dont count deserts China is actually smaller than India) do need them and in 20 years time when they can afford maglevs on a large scale who are they going to buy from? From those who have working systems in place so this is m
  • A society planning 20 years into the future ... I thought that was an impossibility due to the human condition.
  • For 76 *ucking billion, I wanna see mach 5 jet engines on the back of the train in 2 years!

    That sounds like a hella lot of waste for nothing, a long time from now!

    In 10 years we'll have free energy & in 20, teleportation. 310 miles per hour will sound like walking compared to flying an F18 with the technology they'll have in 2025.

    Adeptus
  • I grew up in Japan in the 1970s, and I had picture books that talked about how maglev trains would connect Japan's cities in the 1980s.

    Oh and, weren't we supposed to have cities in space by now? Using computers that still spat out ticker-tape, of course.
  • I heard a rumour that there was concrete cancer on the shinkansen track from Tokyo to Nagoya. They painted it with some obscenely expensive paint system to fix it. Maybe that's the reason for the selection of that run for this new system.

    Heard about a guy who lived in Osaka & worked in Tokyo (three hours each way) His teiki (month pass) was the same as my salary back then. Must have had one hell of a wife, one way or the other.

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