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Japan's Melody Roads Play Music as You Drive

Krishna Dagli writes "The road works by using grooves, which are cut at very specific intervals in the surface. Just as traveling over small speed bumps or road markings can emit a rumbling tone throughout a vehicle, the melody road uses the spaces between to create different notes."

21 of 335 comments (clear)

  1. Whimsy by BWJones · · Score: 4, Interesting

    I have to say that after just getting back from Japan that they do have a certain affection for the whimsy even on large scale publicly funded projects that is just awesome. One of the things I saw was a huge platform with a glass top and water on top that served nothing more than a spaceship like cover for a courtyard down below and an attraction. Pics here .

    I would have loved to have traveled on these roads while I was there...

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    1. Re:Whimsy by kamapuaa · · Score: 3, Interesting
      Yes, it's amazing the things you can afford when you're not paying for another war every few years.

      Not to support the war (I don't), but Japan can't afford it - it has by far the largest public debt in the World at $6.8 trillion. That's 25% more than the US's, but with less than half the population, and the population shrinking and rapidly aging. Personal debt is only a couple percent less than the US's, on average.

      Japan is just addicted to public spending, they build stupid shit everywhere, especially in the countryside. The seashore of Japan is almost entirely surrounded by huge concrete jumping jacks (waves are dangerous y'know), every po-dunk village has a huge cultural performance building, every ravine or river has a modern bridge built across it, right next to the old bridge that was perfectly serviceable. Perhaps it's the political system on croney-ism, perhaps it's that votes in the country-side are worth 2 or 3 times that of a vote in Tokyo, and the only jobs in the countryside are public works and heavily-subsidized farming.

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    2. Re:Whimsy by DkY · · Score: 2, Interesting

      US national debt is about $9 trillion http://www.cbsnews.com/stories/2007/09/06/notebook/main3238787.shtml

      You might have been thinking about the federal public debt which was $5.04 trillion.
      You get from 5.04 to 9 by adding in intragovernment debt obligations which include among other things, money that individual states owe.

      How the Japanese figure is arrived at seems to be less well documented though I'm sure its out there somewhere..

  2. Tires? by theReal-Hp_Sauce · · Score: 3, Interesting

    It's my understanding that the rougher the road surface you drive on, the faster it wears out your tires. Not just a small amount either, I seem to recall reading that it could shorten the life span of your tires by 50%.

    I don't know about anyone else, but I think tires are expensive and hate spending money on them. I would not enjoy having them wear out quickly so that I can listen to the same damned song every day on my way to work... The radio already does that for me, and it doesn't ruin my tires.

    -hps

  3. Re:As in by calebt3 · · Score: 1, Interesting

    Should be an interesting way to gauge your own speed. Besides using an odometer.

  4. Speech synthesis? by lindseyp · · Score: 2, Interesting

    That is awesome. I wonder if you could manipulate the harmonic quality of the hum, and take it as far as synthesized speech. "welcome" or "yokoso" as you enter town. That would be jaw-droppingly awesome.

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  5. Top Gear by bi_boy · · Score: 3, Interesting

    Saw this on Top Gear (on Discovery Channel) a couple of years back. Not sure if it was Japan, I think it was a European country. I think they used bumps though instead, so that at certain sustained speeds it would play a nice melody but if you went too fast it would sound horrible and scarring.

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  6. Disney tested this out years ago... by testtrack321 · · Score: 4, Interesting

    Years ago the Walt Disney World was looking for additional magical things to add to the roads for their upcoming Millennium Celebration. On a desolate piece of road on property speed warning indicators were tested (the kind you encounter on the side of the road or before a toll road) that played a song. That song was "Zip A Dee Do Dah", and for years it stayed there. There were problems with it. First, was the fact in order for it to work, you would have to be driving a VERY specific speed, not faster, not slower, or it would seem like a random assortment of rumbles. And when someone would go the wrong speed, they'd think there was something wrong (veering of the road, toll soon, etc), and would try to break, get the car back on the road, etc, that it became dangerous. Since it was dangerous, no one would drive the correct speed, and the fact they'd need to tear up the roads just to install it, Disney mothballed the idea.

  7. Re:Tire wear? And more importantly, road wear? by www.sorehands.com · · Score: 4, Interesting

    Forget tire wear. What about the uneven coefficient of friction? That can get you killed. Predictability of your vehicle's reaction in all situations -- especial in emergencies -- is important.

  8. not really my favorite arc. . . by calice · · Score: 2, Interesting

    . . . but Achewood predicted this.

    In the arc's defense, the robot did dress up his hair like Pete Rose.

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  9. Re:Tire wear? And more importantly, road wear? by Anonymous Coward · · Score: 1, Interesting

    Turn it around, and there's virtue in the tune-strips wearing off: sell the rights to lay down an ad jingle to the highest bidder. The life-span of the strips is the cue to put it out for bid again.

  10. Roadside advertising by Anonymous Coward · · Score: 1, Interesting

    This is old hat. I remember when I was a kid and went on road trips, my old man used to joke that it would only be a matter of time before corporations started carving messages into the horizontal grooves on the sides of the road that buzz when you veer out of your lane with messages like, "Wake up with a refreshing Coke!" or "Don't drive without some No-Doz!"

  11. Re:You mean like... by tjstork · · Score: 2, Interesting

    Remember when Great Britain ruled the world? Things change buster and the US will be the Canadians' future Mexico; demograpically as well as metaphorically.

    The USA doesn't rule the world. The USA is the market of last resort. As the world economy expands, those forces that presently drain the USA will balance out, improving the overall USA position relative to the rest of the world. Even in these times, USA exports are now at a record high, and the trade gap is actually closing.

    Canada isn't going to rule anything. Canadian birth rate dooms the nation. In the end, population wins, and the USA population is growing, and rather dramatically.

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  12. Sounds & smells on Montreal Metro by maggard · · Score: 4, Interesting

    In Montreal a generation of Metro subway cars electric motors were tuned to perfect fifths, coincidentally the first three notes of Aaron Copland's "Fanfare for the Common Man". The tones were even part of a TV ad campaign when the line was opened.

    Technical Explanation PDF (in French.)

    However the Montreal Metro offers another treat to the senses: Smell.

    The train brakes are two part, electromagnetic over ~10km/h and birch wood injected with peanut oil slower. Thus when a train comes to a hard stop the station smells faintly of burnt popcorn. If you have to smell your public transit this is about as good as it gets!
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  13. Re:Tire wear? And more importantly, road wear? by ScrappyLaptop · · Score: 4, Interesting
    Out in California you get a chance to see and feel the various levels of road quality that very nicely prove your point. Up in the Sierras, I-80 is concrete due to the winter conditions and chains. Wonderful to drive on any time of year. Down in Sacramento, and around the Bay Area, the freeways are often asphalt (asphalt concrete, not mastic asphalt) over dirt, baby. Great if a little slippery when it's brand new, just adequate when it's mature and really bad when it's still five years out from being replaced. At the local street level all the money from the boom years has been spent so it s gravel-over-tar every five years. Cars go through windshields at an alarming rate, but hey it was the cheapest bid. Interestingly, the decreasing level of quality is also mirrored in the reduced level of traction, so not only are better roads nicer to drive on, they're safer, too.

    I'm afraid this is what happens when there just isn't enough cash to go around. The amount the States get from the Federal taxes in various forms is reduced and so local infrastructure expenditures drop. However, it's not like the Federal government is spending more than it takes in on something that benefits only a select few and has quietly hidden the true costs here and there. There is a war going on; how can we complain about the state of our roads when on the other side of the world there are roads actually getting blown up daily? We have to rebuild those first, along with the electrical distribution, water supplies, schools and hospitals...the list goes on and we haven't even started. Once we have rebuilt Iraq in our image, then and only then can we talk about fixing things here with a clean conscience.

  14. The USA will ALWAYS be #1 by tjstork · · Score: 1, Interesting

    Oh yes? Then I hope you have already sent your regards to your new Chinese and Indian overlords

    The hope is that the USA can continue to ramp up its population while sustaining a good rate of growth, such that China and India don't ever really catch up. Check this out.. This is a Census department population forecast for the USA.

    Census Population Projections 1998

    Notice that it was the high series had the US population at below 300,000,000 in 2006, and we've exceeded that. Thus, assuming the high series continues, the USA population will hit 500+ million by 2050. That's a population doubling time of 75 years. Assuming the same doubling time, we're talking about a billion Americans by 2125...

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  15. Re:Tire wear? And more importantly, road wear? by dubbreak · · Score: 2, Interesting

    +5 interesting

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  16. Mod parent DOWN by brunes69 · · Score: 4, Interesting
    Dunno how this got modded to insightful but the idea that there will ever be even 400,000 Americans is ludicrous. The population growth rate of the US is not growing, it is SHRINKING. Same with the rest of the world. The parent seems to be living back in the 70's with his "dire predictions" of overpopulation.

    Numbers are still growing; but recently--it is impossible to know exactly when--an inflection point seems to have been reached. The rate of population increase began to slow. In more and more countries, women started having fewer children than the number required to keep populations stable. Four out of nine people already live in countries in which the fertility rate has dipped below the replacement rate. Last year the United Nations said it thought the world's average fertility would fall below replacement by 2025. Demographers expect the global population to peak at around 10 billion (it is now 6.5 billion) by mid-century.

    http://www.economist.com/opinion/displaystory.cfm?story_id=9545933

  17. Re:Tire wear? And more importantly, road wear? by Anonymous Coward · · Score: 2, Interesting
    Yeah, I have a friend who works for a satellite company. He says that anymore, it's common practice to create your budget, then slash it by 20% before you put your bid in for a government contract. You know it's not enough to fund the project, but they never cut you off for going over budget, whereas they'll quickly take another company's unrealistically low budget over yours. I'm sure if it's true for satellites, it's true for everything from roads to the White House toilet seats to the pens they use in the Senate. And then we all wonder why the government is constantly going over budget.

    (Anonymous to protect friend's privacy, just in case.)

  18. Re:Not songs by WebCrapper · · Score: 2, Interesting

    This is actually old technology. The Swiss, I believe, did it first. It was originally designed to keep people within the speed limit. They found that popular classical tunes "tuned" to play correctly at the speed limit caused speeders to slow down and Sunday drivers to speed up to the proper speed.

  19. Ah, Census Department Disagrees with You... by tjstork · · Score: 2, Interesting

    Dunno how this got modded to insightful but the idea that there will ever be even 400,000 Americans is ludicrous. The population growth rate of the US is not growing, it is SHRINKING. Same with the rest of the world. The parent seems to be living back in the 70's with his "dire predictions" of overpopulation.

    Ah, I merely cited figures by the Census Deparatment, you know, those guys that count people. They have the USA at 1.25 billion people in the year 2100, in their "fast population growth" scenario, which, as I've pointed out, we have already exceeded.

    Dude, you aren't factoring in immigrants and their children. The first wave comes in, gets American rich, has a ton of kids.

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