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How Will We Get Around Near-Future Earth?

Slob Nerd points to this BBC article on future transport possibilities. It begins "The prospect of a revolution in air travel has been raised by Nasa's successful test of a 5,000mph plane. But are we likely to see similar advances in other forms of transport? Dusting off the crystal ball, what changes might come in the way we get around? What big ideas are out there, and do they have any chance of seeing the light of day?"

177 of 974 comments (clear)

  1. Whatever it is... by Valar · · Score: 5, Funny

    it'll be safe to say it isn't the segway... :P

    1. Re:Whatever it is... by Dutchmaan · · Score: 5, Funny

      What if you put a scram jet ON a segway!? That's fun for the whole family!

    2. Re:Whatever it is... by whereiswaldo · · Score: 4, Funny

      What if you put a scram jet ON a segway!? That's fun for the whole family!

      Sure, till the battery runs out!

      Jokes aside, I'm glad to read the page I linked to. If it's true, the problem reported awhile back about Segways stopped dead in their tracks when the battery runs low doesn't seem as bad as it was made out to be. However, it does still leave me with a question: what do you do with your Segway if the battery runs low and you're 3 miles from home? Can you carry a spare, or do you push it back home?

    3. Re:Whatever it is... by I_Love_Pocky! · · Score: 2, Funny

      That's right... I think in the future we will all be getting from place to place by way of cannon. You just get yourself a nice helmet, climb down the barrel, and you're off. Easy as that. Alternatively we could all ride camels.

    4. Re:Whatever it is... by adpowers · · Score: 2, Informative

      It does charge it. On this Segway page (under the San Francisco section), it says the HT has regenerative braking. Thus, pulling it around charges it to. My neighbor occasionally takes one home from his office (at Amazon.com) and one day he was walking home with a dead Segway. It had ran out of battery on the way back. However, by pulling it around and down the hill, it slowly gains energy back. Plus, if you wait a little while, he says it magically finds some more energy (just a little) hidden away :). So, as long as you are not /too/ far away, you can still get some use out of it.

  2. I want my flying car by richardoz · · Score: 5, Funny

    you insensitive clod...

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    1. Re:I want my flying car by Vancorps · · Score: 4, Funny

      I wanna talk on my cell phone while reading a news paper with one foot out my door while I drive a flying car!

    2. Re:I want my flying car by Sevn · · Score: 4, Funny

      Considering the morons they let drive cars, the only way I'd feel safe driving the friendly skies would be if:

      1) Manditory intelligence testing
      2) Manditory hand eye coordination testing
      3) Manditory reaction time testing
      4) Hardcore schooling and licensing program
      5) Very intense vehicle licensing and inspection program

      I don't want to share the skies with the same people that drive beat to shit, oil burning cameros from the late 70's if they are going to drive a similar sky vehicle. By that same token, I DEFINITELY don't want to share the skies with your typical hunched over florida driver behind the wheel of a shit insane scary swerving winged cadillac.

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    3. Re:I want my flying car by BlueCup · · Score: 5, Funny

      1) Mandatory intelligence testing

      I don't want people driving that can't spell.

      All apologies if this is a spelling accepted in other countries.

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    4. Re:I want my flying car by Vancorps · · Score: 5, Insightful
      Sorry, but intelligence has nothing to do with many of the problems on the roads today. There are idiots that drive quite safely and geniuses that are space cadets.

      Only way to work is to eliminate a computer at the controls. A central traffic grid would be hard to setup but once created could be very efficient at selecting routes to destinations. When you arrive at the address you specify getting in the car then you can point to a more precise location or tell the car to park itself. If you have no specific destination you could tell the car to just cruise.

    5. Re:I want my flying car by A.T.+Hun · · Score: 4, Funny

      You forgot

      6) I would be allowed to have air-to-air missiles

    6. Re:I want my flying car by QuaZar666 · · Score: 4, Informative

      I will give you the flying car under one condition.

      http://www.viewaskew.com/tv/leno/flyingcar.html

    7. Re:I want my flying car by aauu · · Score: 2, Interesting

      Setting up the grid is easy. Just designate a direction for each altitude in a clockwise manner from sea level with increasing velocity. You spiral up/down until you are heading the direction you want. Some adjustment will have to be made to the speed zones based on the altitude of the local topography. No collisions since everyone at the same altitude is going the same direction and speed. Reserve the first x ft above ground level for vertical flight only with separate landing and takeoff zones.

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    8. Re:I want my flying car by spood · · Score: 2, Funny

      But at least the grandparent spelled "definitely" correctly. It's a misspelling paradigm shift!

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    9. Re:I want my flying car by DoktorFaust · · Score: 3, Informative
      Posted by Vancorps
      Sorry, but intelligence has nothing to do with many of the problems on the roads today
      You clearly don't have facts to back that up. I recall reading a blurb in Science about a study which showed exactly the opposite of your claim, there is indeed a correlation between IQ and driving. A quick google search and I found a reference to that study:
      An item in www.sciencemag.org on "The Practical Benefits of General Intelligence" says "people who score poorly on IQ tests also have more accidents." The study of Australian veterans under age 40 showed those with IQs of 80 to 84 had 146.7 traffic deaths per 10,000 compared with 51.3 deaths for those with IQs above 115.
      --

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    10. Re:I want my flying car by Vancorps · · Score: 2
      And a quick survey of the accidents my geek friends have caused against the accidents my non-geek friends have caused would say the opposite.

      Even your figures help support my claim since intelligence =! no traffic accidents. Might add that those are traffic deaths and not general accidents which are much more common.

      Intelligent people probably cause less deaths because they better know how to handle themselves in the situation but that does not mean they don't cause any or even a lot. The point was that an intelligence test would not work. Obviously people of below average intelligence shouldn't fly, the same goes with driving a car.
    11. Re:I want my flying car by utexaspunk · · Score: 5, Insightful

      A central traffic grid would be hard to setup but once created could be very efficient at selecting routes to destinations

      I don't know about you, but I know that I don't want my primary means of transport centralized. Just too much opportunity for badness there.

      How about we just work on cars that can drive themselves independently in the midst of humans driving their cars? That's the only way we can gradually transition to a computerized system, anyway. Once a sufficient majority of drivers have self-driving cars, we can start declaring lanes "computerized cars only", and then gradually phase out un-automated cars.

      Once we have decent self-driving cars, a whole new way of life emerges- how about ordering stuff off the internet and having it delivered automatically? No more need for stores, really, at that point... Little motorcycle-sized auto-delivery bots cruising all around?

      I could go downtown and have my car drop me off somewhere and park itself, or maybe I'll just have a taxi service that I can summon near-instantaneously with my phone/PDA, and then it can go serve someone else when it drops me off. I would imagine it would alter the shape of suburbia drastically, as well. I could live in the middle of nowhere and get around just as efficiently as if I lived in the heart of the city...

    12. Re:I want my flying car by rishistar · · Score: 3, Funny

      I think they should all have completed Descent

      --
      Professor Karmadillo Songs of Science
    13. Re:I want my flying car by chain_from_hell · · Score: 2, Interesting

      Sure. With the current American Justice System. The first person who 'll hurt his pinkie when the car does a bit of a hard landing while not wearing his seatbelt, will sue the crap outof the manufacturer. It's not about technical possibilities, but about liability.

      If you smack against a tree with your car it's your driving that's the cause except when someting is seriously wrong with the car. If it's an automated system, it's not gonna take a long time for the first sue. That's why they don't een consider automating the current infrastructure.

  3. High speed trains by s0rbix · · Score: 5, Interesting

    I'd like to see more high speed trains in the US. It's a lot more economical than air travel, can be just as fast (with aiport wait times and all), and is just as if not safer than flying.

    1. Re:High speed trains by dustmote · · Score: 5, Insightful

      I have also heard it suggested that doing so would probably create many jobs in the US as the building and operations infrastructure was being put into place, not to mention the increased commerce between disparate parts of the US. I don't know the validity of these claims, but they seem reasonable enough. A good kick in the pants for us USicans economy if true, no? I don't see it being very easy to get widespread support with the current power structure, though.

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    2. Re:High speed trains by Anonymous Coward · · Score: 5, Insightful

      "I'd like to see more high speed trains in the US"

      But General Motors doesn't want to see that in the U.S...

    3. Re:High speed trains by robslimo · · Score: 2, Insightful

      OK, I'll see your more high speed trains in the US and raise you a whole lot more plain, ordinary passenger (or even a few more freight) trains first.

      It's seems ironic that one of the nations that brought rail travel to the world is now one of the least railed now. We may very well revert/advance to railed systems in the future, but it will only be after serious economical and social changes have taken place... which assumes the demise of the automobile and its associated freedoms as we know and love it now. I'm not holding my breath (except when I'm in the big, smoggy cities).

    4. Re:High speed trains by lpret · · Score: 2, Insightful

      Neither do the oil companies...

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    5. Re:High speed trains by Anonymous Coward · · Score: 3, Insightful

      It's called supercavitation. Traveling within the vacuum created by the shockwave the nose of your craft creates. Water only touches the nose, the rest of your craft is flying - hence supercavitation typically requires rocket power.

      Which is fine for a missile - but a bit impractical if you're a human that wants to get there without being turned into a gooey paste due to extreme forces at launch, maneauvering - and if you hit anything.

    6. Re:High speed trains by UniverseIsADoughnut · · Score: 4, Interesting

      I agree Highspeed trains will be nice. But even the fastest trains still are far slower then getting on a airplane to go cross country. Also the US is simpley huge. Think of how long Europe has been working on their train networks, both slow and highspeed. Now think of the US which barrly has any train network, and then finaly remember the US is bigger then all of Europe. It could take 100 years to get close to what other countries have. Also to be effective it needs to get to every town, which is really hard to do when everything is so spaced out. In areas where one city bumps into the next they work much better.

      No the flip side, trains are great expecialy if they come by all the time and you can just go down and buy a ticket and get on. That would be great. Also since I hate planes I would love them. I'm a mechanical engineer, I just can't deal with planes. All the way through college everything seamed to be about how airplaces fail, and riding in them I over-think ever sound they make. So I would love trains, the price has to be right though. I saw something saying a Acela (sp?) train ticket from DC-Boston was like 280 bucks, (note this could be wrong, it was something like that). Thats crazy. I would expect it to not be more then 30 bucks or so. If trains arn't dirt cheap it won't work. It shouldn't cost the same as a airplane ticket.

      Now here is something else. Planes have numbered days unless they come up with something. Planes need fuels like Kerosene and Diesel, that is, heavy hydrocarbons. Without such energy dense fuels they can't get off the ground. There is a limited supply of fossil fuels. It's projected to run out at any moment in the next 20-400 years (yes thats was making fun of dooms day predictions). Without such fuels airplanes are screwed. You can make fuel like Fisher Tropes Diesel, but that takes a lot of energy and isn't very clean to produce. It's hard enough to make the cost number works for planes as is, double the cost of fuel and hell really breaks loose.

      So as it stands now planes are screwed in the future, thus why most things talking about the future don't mention planes. You can't make an electric plane that would go very fast. And to power it you'd need a nuclear reactor up there. This makes you wonder what we will do for trans-ocean travel.

      So even though trains will be a bitch to move to and take a long time, they might just happen do to no other good answer.

    7. Re:High speed trains by Moofie · · Score: 2, Insightful

      You're a mechanical engineer, and you don't understand that air travel is safer than train travel?

      Mmmmmmkay.

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    8. Re:High speed trains by Ironica · · Score: 4, Informative

      It's a lot more economical than air travel, can be just as fast (with aiport wait times and all), and is just as if not safer than flying.

      Unfortunately, it's not necessarily more economical.

      Believe me, I much, much prefer rail to air. It's far more comfy, safer, and the view is better. But a study (done in 1996 by David Levinson) of the proposed California High Speed Rail system for the Los Angeles to San Francisco corridor found that the costs per trip, compared to air travel, will be about double. That includes externalized costs, such as fuel emissions and noise. The proposed HSR system would even be more expensive than driving.

      The good news is, a much, much higher ratio of the costs are internalized in those figures. That means that passengers would be bearing almost the full costs of their journey, unlike highway and air journeys where more costs are externalized.

      The numbers go like this:
      ..........Internal...External...Total
      Highway...135........21.........156
      Air.......77.5.......4.5........82
      HSR.......157.65.....1.35.......159

      That's in dollars per passenger. (I tried to make it legible. I'm afraid it's in /.'s hands now.)

      Now, Levinson is very hung up on the enormous capital cost of building the system, so he is possibly incorporating debt maintenance into those cost figures. However, the location I'm citing (which is a PDF of a class lecture presentation) references "fuel costs," so that may be the only consideration. (That seems unlikely, though, since it costs a lot less than $135 to fill your tank twice for the drive up to the Bay Area.)

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    9. Re:High speed trains by sumdumass · · Score: 2, Interesting

      i don't want to see them either, public and mass transit sucks. give me a care a anyday.

      you know if they start building them it will end up being funded by tax payers against thier will. not good if you ask me.

    10. Re:High speed trains by Yet+Another+Smith · · Score: 5, Interesting

      Not sure that you're 100% right on the 'least railed' nation. It's true that we've got one of the lowest rates of passenger rail ridership in the free world, but we're not really that poorly served by rail freight.

      I'm no expert, but I do recall a couple of discussions with a British trainspotter who contradicted me when I denigrated America's freight system along with her passenger system. Apparently (and again I'm no expert and am almost 100% quoting a trainspotter) America's transporting a fairly high percentage of its freight by rail, compared to Europe. Almost 100% of US track-miles are owned by railfreight companies, whereas most European rail is devoted to passenger traffic.

      The one anecdote that I can add to that that approaches first-hand experience was hearing said Brit trainspotter proclaim, following a road-trip from Denver to Dallas, that the mile-plus-long trains he'd seen rumbling along beside US 287 between Amarillo and Dallas were unlike anything he'd seen in Europe.

      Of course its equally important to point out that the Shinkansen and Eurostar, and even the more modest Swiss and Finnish passenger trains beat the hell out of the old Silver Meteor I once took from South Carolina to Florida. I don't even know if that line still runs.

      Still, a lot of Europeans are finding that for the a lot of long-distance travel, air is vastly prefferable to rail. Especially now that Europe has allowed discount airlines to begin operating, ditching the protected national carriers.

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    11. Re:High speed trains by Ian+Bicking · · Score: 5, Insightful
      Damn straight! I'd rather we throw money at infrastructure than at insanely expensive and stupid military projects. At least then we, as a society, will get something out of it. Ditto farm subsidies -- pay people to make infrastructure, not to sit on their butt, or worse pay them to waste energy making ethanol.

      Hell, at least during the Depression the WPA made useful things... things that are still around today. It was really all busy work from an economic point of view, but from a societal view it had some use. Why can't someone propose that for an economic plan? Even if it doesn't boost the economy, at least it does something.

    12. Re:High speed trains by MsGeek · · Score: 2, Interesting

      Well, there has been perennial talk of an LA to Vegas service.

      However, now the LA City Council is dicking around with stuff like a train from West LA to Ontario Airport and another from West LA to Palmdale Airport. What's the goal? To shunt travelers who would normally fly out of LAX to lower traffic airports that are also managed by the same people who manage LAX.

      After the hell that is the drive from the San Fernando Valley to the Silicon Valley, I am personally quite partial to an LA/SF route. Since there is Caltrain and BART service to feeder you out from SF to everywhere else in the Bay Area it would make a lot of sense. If there were a stop in Santa Barbara along the route it would be a tourist's dream. An hour to Santa Barbara? Two to San Francisco? I'm there.

      Considering how badly fuxored the California economy is, I'm not holding my breath.

      One last thing: Amtrak isn't a bad ride. Van Nuys to Santa Barbara/Goleta is a pleasant run, I make it several times a year. It's not really that expensive, either. Especially when you consider the expense of gasoline...

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    13. Re:High speed trains by sumdumass · · Score: 2, Interesting

      One of the main reasons we have given up on rail transportation like we did (not totaly but lessend the value)was because durring ww2 we noticed that when we took out the rail lines we halted the axis production. The interstae highway system was supposed to be a redundent network of roadway that if one was taken out it would allow another to be used easily. Not only did this look good for stategic defense but it made sence for taking products to market.

      Trains can't steer around a bad piecs of trac or a downed bridge. Cars and trucks can redily take an alternative route that usually wouldn't be more then a couple of hours out of route time. Europe has never concentrated an effort on an organized road system like the us did untill recently (if they ever did). So rail transport other there still makes sence. In the U.S. road transportation is faster and makes even more sence not to mention the way train companies loose cargo. happens alot especially durring a union dispute.

    14. Re:High speed trains by ArsSineArtificio · · Score: 4, Funny
      Europe has never concentrated an effort on an organized road system like the us did untill recently (if they ever did).

      Actually, they put a lot of work into it, but the Visigoths screwed it up.

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    15. Re:High speed trains by Cecil · · Score: 5, Informative

      Planes need fuels like Kerosene and Diesel, that is, heavy hydrocarbons. Without such energy dense fuels they can't get off the ground.

      That's just plain silly. First of all, they're not 'heavy' hydrocarbons. Many, if not most space launchers have used kerosene as a fuel, including the Saturn series of rockets. They use it because it's a particularly light fuel. Liquid Hydrogen + Liquid Oxygen is better, but requires a lot of cryogenic equipment and has only come into style in the past couple decades.

      Planes, on the other hand, have much much much less restrictive fuel requirements because they get remarkable amounts of lift from the atmosphere, whereas a rocket has to brute-force its way up against gravity directly. Planes don't need any particular fuel at all to fly in many cases (See: gliders, hanggliders, etc) and if you want sustained flight, it's quite possible to pedal wherever you want to go (until you get tired, which'll be quickly!)

      Admittedly, neither of those methods will get you anywhere fast, but the point is, that planes don't "need" this superpowered fuel any more than your car "has to have" gasoline. Well yes, it does, but only because it's so abundant at the moment that we don't have any motivation to look for something different.

      There are all sorts of possibilities for building high-speed airplane without using fossil fuels. Hydrogen comes immediately to mind as nearly a drop-in replacement for the fuels in turbojet engines. It's already being used in the scramjet engine, you'll notice. But why stop there? Alternatives abound, consider a ground-based catapult launch system to get the plane up to a reasonable velocity, then just coast with some conventional prop engines until you arrive at the destination. Perhaps more research into the phenomenon that powers the high-voltage tinfoil lifters that kooks claim are anti-gravity machines will yield a new type of economical atmospheric propulsion?

      Be a bit more creative. (And don't complain that these may be more expensive than current fuels: If we run out of fossil fuels, everything will be doubling in price and then some, so you'll get used to it.)

    16. Re: High speed trains by drago · · Score: 2, Interesting

      Shipping containers are also transported by rail in Europe, I don't think that's much of an issue. But another reason for trains being more profitable in the US is that the dense of population is far less in the US than in Europe. A train can operate most profitable if it can cross vast amounts of miles without having to stop (the same goes true for planes of course). Only on long trips high speeds can be achieved and going from the west coast to the east coast _is_ a long trip. In Europe theres a station every 5 km or so and even the high speed trains stop every 100 km, which is barely enough to go on full speed even provided the rails go straight enough, curving around villages and smaller cities every few kilometers.

    17. Re:High speed trains by fucksl4shd0t · · Score: 3, Interesting

      Perhaps you should point out to him all the potential economic benefits. Austin has many people that commute to D/FW for work, believe it or not, and vice versa (believe it or not!). A high-speed train that would cut their travel time from 6 hours roundtrip to 2 hours roundtrip without costing a fortune would make a killing.

      Everything from D/FW down to San Antonio needs to be stuck on some sort of high speed rail system. It's rapidly becoming one metropolitan area, and it makes perfect sense to combine them in public transport, but public transport for that whole area does require high speeds to be useful.

      And if the airlines could see a decent ROI on getting regular commuters at a regular commuting price rather than weekend travelers at airline prices, I'd bet they'd jump on it. SW has had trouble in the past flying around Texas itself...

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    18. Re:High speed trains by fucksl4shd0t · · Score: 2, Informative

      any more than your car "has to have" gasoline.

      Yeah. :) Ethanol is a near drop-in replacement for gasoline (requiring only timing and mixture adjustments in most cars, and in newer cars that means replacing the computer).

      Just to make a small point, though, running out of fossil fuels isn't going to make them more expensive. Peaking worldwide is what's going to make them more expensive, because after oil drilling peaks, there won't be any growth in oil production, but the growth in demand will continue to rise. So prices will skyrocket, and our oil-based economies will go bankrupt long before we run out of fossil fuels.

      So why not convert to ethanol? It would benefit farmers, certainly. Can be produced locally, etc. I could go into economic benefits and ecological benefits and so forth, but it all come down to one thing: oil companies are huge, corrupt, and monopolistic. Think Microsoft as an oil company, and that's what we have. That's why we haven't managed to convert to ethanol, and every regulation that tries to achieve a compromise that would allow people to switch has been literally a fight and struggle to get passed.

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    19. Re:High speed trains by Jardine · · Score: 2, Funny

      Alternatives abound, consider a ground-based catapult launch system to get the plane up to a reasonable velocity

      Wait a minute. I've heard of this. It's called Elbonian airlines. But where would we find enough mud to make the landings soft?

    20. Re:High speed trains by otis+wildflower · · Score: 3, Informative

      Europe has never concentrated an effort on an organized road system like the us did untill recently (if they ever did).

      Er.. the US interstate highway system was a direct result of the Autobahn.. Given that Eisenhower had firsthand experience of its efficacy in moving materiel vs more vulnerable rails, it's not surprising that it was his administration that pushed the highway system thru congress on its military necessity...

      (oh, and until recently, Europe wasn't a country ;)

    21. Re:High speed trains by fucksl4shd0t · · Score: 2

      I live in Dallas, and I have lived in Austin. Fortunately, my commute did not include the utter disaster that is the Austin highway system. And don't get me started on the buses...almost cost me my prom date! : )

      Heh, you live in Dallas but you call the Austin highway system a disaster? :) If we assume there are good, fast, workarounds for the corridor of death known as I35, the Austin highway system is actually pretty good. All things considered, of course. The only real problem with the Austin highway system (besides the corridor of death that is virtually impossible to rebuild at this point) is that it hasn't grown fast enough to accomodate the level of growth the city saw in the 90s. 183 needed that extra limited access portion long before they built it, and Mopac needed to be extended before they extended it. Excluding those areas, the system itself is really quite nice.

      Now, I didn't fully appreciate how good the Austin system was until I saw the Seattle system. Talk about a pain in the ass. Seattle itself has only two real freeways in it, and one of them isn't limited access for its entire length (99, also known by a road name, but i forget what it is). Both of these freeways run north and south, and we've got jack and shit for east-west freeways, unless you count 90 and 520, but those are only really useful for those of us that live in the Eastside. 405 is also fairly useful, but it only runs in the Eastside as well. Seattle itself is very congested, and the roads are so poorly maintained that you can't drive a block anywhere in Seattle without hitting a pothole.

      D/FW on the other hand (admittedly, most of my driving in that area was in Fort Worth), is a big disaster. Construction in most places, high congestion all over. Hmm, maybe it's a population density problem. But it's not population density that makes SEattle's freeways suck ass, because the Seattle area is about the same size in population as the Austin area, and Austin's freeways serve the area well (except for a few hotspots on the bridges, but you expect the most heavily trafficked areas to have hotspots).

      I too don't know enough to really debate light rail, but it doesn't take much of a brain to look at Austin and figure out they need something better than what they've got. Too many environmentalists to let the place grow into a smog hazard other cities are, but too many gas-lovers to put money into public transportation. But it also doesn't take much of a brain to look at central texas and figure out that it's merging into one huge metropolitan area and to look at the problem as a much larger problem.

      Not to turn into a kook, but I think that flying cars would fix the problem. :) I'm really hoping someone comes up with a cheap and reliable powerplant that will make flying cars without lift surfaces a reality, because flying cars with lift surfaces will always fail. And, of course, that fancy powerplant needs to be portable. I'm open to suggestions. :) (My wife wants me to spend this winter in garage inventor mode, and if we do well enough this summer I'm all over it ;) )

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    22. Re:High speed trains by lhuiz · · Score: 2, Insightful

      Trains (~75mph) simply aren't anywhere near as fast as airplanes (>500mph).

      You're right that they are not equally fast and they might never be. But last time I sat on the French TGV it certainly went faster than 75mph. The thing goes over 300kph, which would be about 200mph i guess. At those speeds it would still take you longer to get there, but at least the times would be comparable.

      And then you have the new developments in maglev (magnetic levitation) trains, where speeds can be higher - near 500kph, say 320mph - and more importantly acceleration is a lot better too. Those things offer the option of moving you over great distances in good time and still stop at every significant town in between, which enhances your chances of getting near your final destination, lowering driving times to/from the airport or railway station.

      On the downside: planes not only move faster, they can also move in a direct line, something train will never be able to do...

    23. Re:High speed trains by silence535 · · Score: 2, Interesting

      But even the fastest trains still are far slower then getting on a airplane to go cross country.

      Not if you take into account all the check-in and check-out time and the time it takes you to get to the airport. High velocity trains can go with more than 300km/h and take you right into the heart of the city. I can hop on the train just a minute before it 'takes off' and buy a ticket inside.

      If trains arn't dirt cheap it won't work. It shouldn't cost the same as a airplane ticket.

      If you get the same transport (in terms of being taken to another place) in the same timerange (give or take 10-15%) as with airtravel, then why the heck should a trainride be cheaper than an airflight?

      There is a limited supply of fossil fuels.

      And a lot of the fuel in a plane is used to keep it above the ground, whereas trains simply roll on the rails. In short, trains are much more energy efficient, which means that even if they use fuel directly or indirectly through electricity, the fossil energy will last much longer.

      Other environmental effects are often neglected. Planes produce exhaust gases way up in a zone where they reduce the ozone layer which is shielding us from radiation. Ever been in Australia? "Between eleven and three, slip under a tree!", that's what they teach their children in the kindergarden down under.

      -silence

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    24. Re:High speed trains by Cody+Hatch · · Score: 2, Insightful

      I have also heard it suggested that doing so would probably create many jobs in the US as the building and operations infrastructure was being put into place

      By morons, maybe.

      This is just a special case of the Broken Windows Fallacy. Just think! Were I to chuck a brick through your window, I would at a stroke create work for the glazier to make a new pane of glass, for the repairman to install it, for the deliveryman to carry it from the glazier workshop, for a miner to mine the sand needed for the glass, for farmers to feed all these people - a large net good for the economy, no? So we should encourage people to chuch bricks through windows, right? And dig pointless ditches, move mountains three feet to the left, and blanket a large and fairly empty continent with a dense passenger rail network, right?

      The answer, of course, is no. There are much more productive things those resources could be doing (or they'd already be doing it). :-)

      (Hardcore Keynesians will of course argue that in very special circumstances (ie, the Great Depression) there may be some point to paying people to do nonproductive things. It's arguable if this was true then, it certainly isn't true now.)

    25. Re:High speed trains by skarmor · · Score: 3, Insightful

      I agree that there is no benefit in paying people to do nonproductive things (like digging and refilling holes in the ground). I also agree that the Broken Windows Fallacy is legitimate.

      But building commuter rail is not a special case of the broken windows fallacy. The broken windows fallacy states that it is not productive to allocate resources to areas where there is no economic gain. The construction of a high-speed rail system has such a gain in that before the project there was no high-speed rail and after the project there is. This is not the same as breaking a window in order to employ people to fix it where the total gain is nil.

      Additionally you are assuming that the country's resources are being efficiently allocated - this is not the case. Since there is already colossal waste within the system on other, less worthy projects it might be a good idea to fund a high-speed rail project (even if the project was not providing a net economic gain).

    26. Re:High speed trains by AgentSmith1000 · · Score: 2, Insightful

      "I'd like to see more high speed trains in the US" But General Motors doesn't want to see that in the U.S...
      Also, you fight the American concept of time. When I went to school as a kid, I had to take a school bus. You had to wait and wait and wait. You were under some other schmuck's timetable of getting from point A to point B. Eons ago, when I turned 16 and could drive, I've driven a car and never looked back. How much of one's life is wasted just waiting for public transit? I feel sorry for the people who live in cities where public transport is the only practical option. I'm sure there are things you can do while waiting (reading, coding etc.), but you are still in stasis or in fear of missing your transport and then have to wait longer for the next one.
      The only time I'm taking public transportation is when my car would be in peril of theft, damage or towing. Or when the distance is impractical such as traveling to an island or great distances.
      The only time you are going to make American public transportation viable is when I an other fellow Americans can pick up and go when we want to go.

  4. Transporters by ePhil_One · · Score: 5, Funny

    Star Trek style Transporters. The government has them in secret underground bases, but the aliens dont want us to know about them, so they force the government to keep them hidden.

    --
    You are in a maze of twisted little posts, all alike.
    1. Re:Transporters by jmv · · Score: 5, Funny

      There should be a way to meta-mod that (Score:2, Informative) as "funny".

    2. Re:Transporters by MagFox · · Score: 3, Funny

      Informative and insightful! Now that is funny.

    3. Re:Transporters by ePhil_One · · Score: 2, Informative

      You can try to hide the Dulce Base conspiracy all you want. Just tell me, are you working for the government or for the aliens?

      --
      You are in a maze of twisted little posts, all alike.
    4. Re:Transporters by Ironica · · Score: 5, Funny

      There should be a way to meta-mod that (Score:2, Informative) as "funny".

      Hey, speak for yourself! I for one didn't know that the government has transporters, or that they were in league with the aliens. This information is very important to keeping my tin-foil hat in tune.

      Thanks for the informative post, ePhil_One!

      --
      Don't you wish your girlfriend was a geek like me?
  5. I dunno . . . by dorlthed · · Score: 2, Insightful

    I just don't feel like scramjets are the future of transportation. Anything traveling that fast will be too small and would be too rough of a ride to be practical for mass/personal transport.

    I don't think there are going to be any radical changes in transportation, speedwise, until we acheive teleportation a la Star Trek. But feel free to argue if you feel differently.

    1. Re:I dunno . . . by Vancorps · · Score: 5, Insightful
      I think we won't see a change in transportation until we see some new energy sources. Right now I just don't think we can do all that much more with gasoline. Bring on Fusion and much improved batteries. Man, batteries haven't really changed in years!

      I think that is holding back most innovation right now, reliance on gasoline and fossil fuels keeps out energy levels low in comparison. We might see a large change in 2014? Whenever the fusion reactor is created and successfully tested. Of course, hopefully they learned from such nuclear accidents as Cherynobl and Three Mile Island, I suspect a fusion related accident would be much worse.

    2. Re:I dunno . . . by Gewis · · Score: 3, Informative

      A fusion related accident isn't going to be bad. There is no melt down. If your field loses confinement, everything cools down nearly instantaneously, and you just have this hydrogen and helium gas sitting in your reactor. There are no control rods, no heavy isotopes... That's why it's so great: it's nearly perfect. It has potential to provide cheap energy, clean reactions, minimal hazards... Now, whether that will have anything to do with transporation is another question. Mr. Fusion isn't likely to see break-even on your hover-car.

    3. Re:I dunno . . . by Anonymous Coward · · Score: 2, Interesting
      Yes and no.

      With a fusion reactor, you've got (on current technology) a great big blob of plasma at incredibly high temperatures. Not something you want to have escape into the environment. Against that, though, it's not particularly radioactive -- yes, there are radioactive isotopes in there, but they're short lived. Most of the byproducts of fusion will be helium-3 or helium-4, both of which are stable from a nuclear point of view. You may also get helium-2, which would decay pretty damn fast to deuterium (aka hydrogen-2) and tritium (hydrogen-3) which decays (half life of about 12 years) to helium-3.

      So the short term effect of a fusion accident would probably be worse than the short term effect of a fission accident. But I'd rather be cleaning up the result of a fusion accident after a couple of days than the result of a fission accident. And if I were told I had to live in a post-accident zone, I'd be choosing the post-fusion zone, not the post-fission zone.

      As for the radiation released by a fusion reaction, most of it is a few neutrons (deuterium fused with tritium, for example, will produce helium-4, plus a neutron). That'll irradiate structures, but can be controlled without too much trouble.

      In short: I'd be happy with a fusion reactor in the back yard. Just give me enough room that the super-heated plasma won't cause me grief if it spills out, and shield the neutron emissions, and we'll get along fine.

    4. Re:I dunno . . . by petabyte · · Score: 2, Informative

      When the containment fails in a fusion reactor, the pressure on the plasma drops and you generally end up with a chamber of radioactive (tritium is radioactive) hydrogen gas. The containment vessel of the reactor would have absolutely no problem containing the cooling gas.

  6. Not by walking by EugeneK · · Score: 5, Funny

    One thing is clear; in America no one will walk. It will be too dangerous - if you aren't run over by an SUV, suffocated by smog, you'll collapse from a heart attack because you weigh 300 pounds and you're body can't take the exertion.

    1. Re:Not by walking by Anonymous Coward · · Score: 5, Funny

      Take that back! I'm American, and I'm a trim 240!

    2. Re:Not by walking by Vancorps · · Score: 4, Funny
      Or maybe we can be like China and ban walking and force everyone to run!

      Solve any congestion problems and improve the health of citizens at the same time. Seems like a great idea to me

    3. Re:Not by walking by YOU+LIKEWISE+FAIL+IT · · Score: 4, Insightful

      I know it's a joke, but I think that foot travel really has potential for the future. As urban density increases, you'd think that the general short-haul travel requirements of individual citizens would diminish until their usual haunts ( the office, the local supermarket, the pub ) were within striking distance of their feet.

      When you're on foot, you don't need to:

      • Park
      • Buy gas
      • Divert around minor obstacles
      • Really pay that much attention to your surroundings
      You can watch the local eye candy and it improves fitness levels at the same time. I do most of my regular travel on foot, and I don't understand why more people don't get into it.
      --
      One god, one market, one truth, one consumer.
    4. Re:Not by walking by cgenman · · Score: 2, Interesting

      I think you hit on the big reason for alternative transportation in cities.

      Parking

      The North End in Boston is one the of the best places in the United States to get truly amazing Italian food, but don't bring the car. You'll generally spend an hour circling around, only to find a spot so far away that you're basically home. Chinatown isn't quite that bad, but don't bother bringing a car on Friday Night. And anyone who wants to park on Newbury street had better have either a ton of patience or a Commercial plate.

      Thanks to the Big Dig traffic through Boston isn't so bad, but parking is still a nightmare. Better to just take the T wherever you need to go, and get some reading done.

      New York and San Fransisco are similar. Expect to find parking at best five or six blocks away after circling for an hour (or pay 40 dollars for a spot in a lot, making cabs much cheaper).

      Transportation infrastructure isn't going to change significantly until something significantly better arrives, or the current situation gets significantly worse. Driving is getting worse and worse every day.

  7. Good ol' days by Stevyn · · Score: 3, Insightful

    Can't we just ride bikes and enjoy the scenery rather than fly past it at 5000 Mph?

  8. By God, the future had better include... by paulschroeder · · Score: 5, Funny

    a hoverboard a la Back to the Future II.

  9. Moller SkyCar... by m0ng0l · · Score: 2, Funny

    One hopes that this idea might "get off the ground." I for one would love to finally have the flying cars we were all promised we'd be riding in by the 1990s' Although I doubt this thing would be able to get past FAA regs, much less be cleared to allow people to have one in their garage, to take out in the morning, and zoom off to work, vacation, or whatever...

    Jason A.

    --
    Do you see the FNORDS? I refuse to post anonymously, as I am fireproof!
  10. Another Earth????!!!! NOOO!!!! by Orthogonal+Jones · · Score: 2, Funny


    I can bench press a lot, me and my near-future self will bench press each other. Then we'll get around the near-future earth.

    Of course, we would then have to get around Bizarro Earth. Personally, I'm assuming my Bizarro self is a terrific dancer and extremely wealthy, so I plan on crashing on his couch.

  11. Excercise? Ooops, bad word. Sorry. by DrunkenTerror · · Score: 5, Insightful

    How about building cities so you can walk or ride a bike to where you need to go, instead of building strictly for car-sized vehicular traffic?

    Have you ever tried to walk to the mall?

    1. Re:Excercise? Ooops, bad word. Sorry. by Aldurn · · Score: 2, Insightful

      Have you ever tried to walk to the mall?

      More importantly, have you everr tried to bike to the mall? I tried taking my bicycle out around my house a few weeks ago, and nearly got run over Three(!) times just trying to go around the block! Of course, it doesn't help that there are no bike lanes, and that because of drivers who don't pay attention you have to use the pedestrian crossings in order to cross the street...
      --
      char sig[120] = "\0"
    2. Re:Excercise? Ooops, bad word. Sorry. by idiot900 · · Score: 2, Interesting

      How about building cities so you can walk or ride a bike to where you need to go, instead of building strictly for car-sized vehicular traffic?

      I live in Manhattan and do not have a car. I walk everywhere or take the subway, since everything I need is so close, and even if I did have a car driving in this traffic would be aggravating and expensive besides. It works fine, but I really miss the Good Old Days(TM) when I lived in suburban environments and had a car.

      - Purchasing large objects: In a carless city, I don't know how I would buy large things, such as furniture. I get that stuff delivered nowadays but if there were no roads how would it get to my door?
      - Groceries: Walking back to my apartment carrying a bunch of grocery bags is no fun.
      - Weather: Walking in general is not fun in the snow. Getting takeout food is a pain in this situation, and I don't really have much option since I didn't buy groceries (see above).

      Once the carless city expanded beyond a small town, it would quickly become inconvenient to live there, if my experience is worth jumping to conclusions from. A subway/train system really helps, but you have to run it with an iron fist if you don't want it to become a urine-soaked pit. (Side note: Singapore's train system is spotless and all around wonderful. But the necessary authoritarianism wouldn't fly here in the US.)

      On the other hand, maybe I'm just lazy. Manhattan would be a much cleaner place without cars, and maybe the tradeoff is worth it.

    3. Re:Excercise? Ooops, bad word. Sorry. by midimonkey · · Score: 2, Insightful
      Which sounds good until you sit down and start thinking about it.

      Several examples:

      1. Your next store neighbour requires a paramedic and may need to be rushed to hospital.

      2. Garbage collection. I suppose you could take your own rubbish to the incinerator (pending it's not miles and miles away) or dig your own hole and bury it - and that still wouldn't account for recycables.

      3. Your roof is on fire. The fire brigade says it will take them 1-2 hours to get their kit together and arrive by bicycle. I suppose we could try to be a 'jack of all trades' and extinguish it ourselves, but.

      4. All of that beautiful food you eat. Mainly brought in by lorry (truck), you wouldn't have the vast number of options you have today in local grocers. This also includes restaurants. There would probably be more emphasis on growing your own and distributing via markets (not a bad thing,) but it would still be quite a chore lugging it all around on a bicycle.

      5. Mail. Services like FedEx would cease to exist, or at the very least would become a -bit- slower in getting that package to you. Your local mail deliverer would also suffer as he/she now has to lug all of the mail for the neighbourhood around with him/her.

      6. Repair/construction people. Carpenters, plumbers, electricians, roofers, et al. Life would not be fun for these people.

      7. Planning on moving? Good luck.

      Don't get me wrong, a bicycle is my primary means of getting around town and although I generally agree that it would be nice if more people would use one (especially in city centres,) I also recognise that cars/vehicles help to play a vital role in day to day life.

      Idealism has its place, but it can also quite silly at times.

    4. Re:Excercise? Ooops, bad word. Sorry. by OgreChow · · Score: 2, Informative

      I believe he is saying that cities should be built in such a way that bike travel or walking are facilitated. Ruling out modern automobile transport would obviously be foolish.

    5. Re:Excercise? Ooops, bad word. Sorry. by chihowa · · Score: 2, Interesting

      Ahh, see I live in a small city in the US with 3 universities. We students overtook all of downtown with out bikes and feet. Driving anywhere near the center of town is nerve racking. Bikes and pedestrians everywhere. It's wonderful.

      --
      If you want a vision of the future, imagine a youtube comments section scrolling - forever.
  12. Out where? by Kenja · · Score: 4, Funny

    I dont go outside now, why should the future be any different?

    --

    "Have you ever thought about just turning off the TV, sitting down with your kids, and hitting them?"
  13. Safer way by Three+Headed+Man · · Score: 2, Insightful

    Matrix style plugging into something somewhere, and projecting yourself into reality there. Sure, you won't actually be transporting, but you won't know the difference, and it'll be instantaneous. Seems workable, although I'm just a little leery of the needle in the back of my skull.

    --
    I'm probably at the karma cap. Mod up a funny troll instead, it lightens the mood :)
  14. Magic 8 Ball by mazarin5 · · Score: 2, Informative

    I predict higher population density, growing urbanization and the increase of public transportation and pedestrians.

    --
    Fnord.
  15. Probably no chance of most of those anytime soon.. by cbreaker · · Score: 3, Insightful

    The only thing I really see coming to market are more effecient cars. There's already some, but there will start to be more alternative fuel cars at some point. Of course, there's no infrastructure for supplying these alternatives.

    All the recent talk of alternative (to automobiles) transportation has been sparked by the high gas prices. It's not because we're short on gas, it's because of the oil cartels. If we switch to an alternative fuel, do you think these people will sit back and just watch their industry crumble? No, they will be the ones controlling the alternative fuel markets too.. So in the end it won't make a damned but of difference as long as they are around.

    --
    - It's not the Macs I hate. It's Digg users. -
  16. Shorter distances? by awgriff279 · · Score: 5, Insightful

    Speed is sexy, of course, but what about just bringing things closer together? Replacing urban sprawl with accomodating (not communist) apartment complexes would be one step towards making a commute faster. What new technologies would make this more possible?

    1. Re:Shorter distances? by realmolo · · Score: 2, Insightful

      Urban sprawl isn't a technological problem.

      People like their space, in the U.S. especially. And we have LOTS of space left. Things are just going to get more and more spread out.

      In fact, any kind of revolution in transportation increases this effect. Imagine if we had working teleportation- people could live anywhere they wanted to (well, that had basic utilities). The population of the world would be completely spread out.


      p.s.- read Alfred Bester's SF novel "The Stars My Destination", where teleportation and it's effects on society is a major theme. And, it happens to be arguably the best SF novel ever.

    2. Re:Shorter distances? by Moofie · · Score: 2, Insightful

      I like having a yard. Lots of people agree with me. That means, suburbs.

      I can see the appeal of urban living too, but some people just don't care for it. Fortunately, there is room enough for both of us to be happy.

      --
      Why yes, I AM a rocket scientist!
    3. Re:Shorter distances? by Skim123 · · Score: 4, Interesting
      I live in a part of San Diego where they've taken your suggestion to the extreme. For 50 square city blocks, you have either:

      • Typical commercial buildings (grocery store and the like)
      • Tattoo parlor or bar
      • Apartment building or duplex or condo building (a single building with typically 5-10 units).

      And I'm not kidding about the 50 square blocks of nothing but the above. Literally, you walk several blocks in any direction and it's condo building next to condo building next to condo building next to apartment building next to condo building. No big yards. No single family homes.

      What's the result? It's packed. If you don't have off street parking, try finding a spot after 5:00 pm on the weekdays, or on the weekends at all. (It's a hot spot for 4th of July, and my first year here I foolishly gave up my spot to drive (!!!) to the grocery store when I could have walked. It ended up that I had to park more than half a mile from my place upon returning.) It's populated primarily by college students and 20-somethings. Being in that demographic myself, I have no qualms, but my biggest complaint is that they're mostly renters so they don't give a damn about the area. So it's not uncommon to find several beer cans / beer bottles on the street/sidewalk after a Friday/Saturday night. Plus, it can be very loud at very late hours (thankfully I live on a cul-de-sac on the quiet side of town, so it's only noisy maybe once a month, when the folks in a neighboring condo unit throw a party).

      I am here, though, because I love it. Not the noise, or pollution, but the beach (less than 1 mile away) and the feeling of the town. Everything is walkable. I walk to restaraunts, to the grocery store, to the drug store, to the office supply store, to Blockbuster, to the dry cleaners, to the bar, to the 7-11, to the beach, and to the basketball courts. I've had my car out here for close to four years now and have put less than 25,000 miles on it since moving here.

      The point is, being crammed together does have its advantages, but it also comes with a slew of disadvantages as well (increased noise, pollution, etc.). Also, most Americans really like large living spaces, and who can blame them? I'd love a huge house with acres of back yard, but that's not affordable here (a two bedroom condo, 1,200 square feet, would likely go between $400k-$500k). I own a place in a condo building with 7 units. I have 1,050 square feet to my name. It's ok, it's just me and my fiancee for now, but it would be tough to raise a family in such cramped quarters. I fear we'll have to move further inland to more of a typical suburban type place once we start a family...

      --

      I could not justify my existence if I were a turkey farmer. Would I terminate myself? Undoubtably, yes.

    4. Re:Shorter distances? by Ironica · · Score: 4, Insightful

      People like their space, in the U.S. especially. And we have LOTS of space left. Things are just going to get more and more spread out.

      It's true that people like their space. But, with most things that people like, demand raises the price. There *is* a cost to providing people that space, and currently, we externalize most of that cost.

      "Smart growth" policies that simply require new development to pay for new infrastructure are a great starting point. Houses out in the boonies are much cheaper per square foot, and not just because of land prices and lack of cleanup issues... currently, most municipalities shell out to bring sewers, roads, and schools to greenfield developments. By simply removing this subsidy, we can go a long way to equalizing the costs of greenfield and infill development.

      Transportation is too cheap, also. We subsidize private auto use very heavily. In 2000, California collected only 1/3 of road and highway maintenance/operating expenditures from gas taxes, registration fees, and truck fees combined. Compared to that, a 27% average farebox recovery ratio for all California public transit properties doesn't sound *quite* so bad. Making people pay some of the external costs for those 50-mile commutes would make condos and smaller lots in the city a lot more attractive.

      read Alfred Bester's SF novel "The Stars My Destination", where teleportation and it's effects on society is a major theme. And, it happens to be arguably the best SF novel ever.

      I evangelize all my fellow Transportation Planning students to read that book. It's a really great thought experiment on the role of transportation in our society and economy.

      --
      Don't you wish your girlfriend was a geek like me?
  17. DeLorean by ItMustBeEsoteric · · Score: 2, Funny

    How are they going to add the time travel feature if they don't make new models?!?! I WAS PROMISED A TIME TELEPORTING CAR.

    http://www.delorean.com/

  18. Real men... by 222 · · Score: 2, Funny

    Real men travel via |

  19. Re:In the future by ePhil_One · · Score: 4, Informative
    The earth will be paved. With concrete.

    Asphalt, not concrete. Concrete requires expansion joints, which can cause problems at 300+mph, even in hypercars. Read the FAQ.

    --
    You are in a maze of twisted little posts, all alike.
  20. Piiipesss!!! [1] by pipingguy · · Score: 2, Funny


    Pipeline Monorail anyone?

    [1] My apologies to Bill Cosby's Shelby Cobra routine.

  21. Automotive! by sumdeus · · Score: 2, Insightful
    But are we likely to see similar advances in other forms of transport?
    I for one would like to see some real improvement in the automotive market. With all of the major car manufacturers dragging their feet over alternative fuel solutions for so many years, the actual adoption of even hybrids has been significantly delayed. I need options with these ever raising gas prices.
    --
    Peter: I got an idea, an idea so smart my head would explode if I even began to know what I was talking about.
  22. Faster planes? by SetarconeX · · Score: 5, Interesting

    The last time I checked, commercial airplanes in the US weren't allowed to fly past the speed of sound to prevent sonic booms (which, incidently, growing up next to an Air Force base, I can tell you is really something you get used to quickly).

    The way I see it, my getting across the country isn't a matter of airplanes not being able to go faster, it's airplanes not being allowed to go faster.

    Now, a couple of Maglevs might be nice....

    --
    "Isn't that the sweetest little well-balanced undergraduate-level philosophy of life."
    1. Re:Faster planes? by satanami69 · · Score: 5, Interesting

      They are already working on ways to silence a sonic boom. http://freerepublic.com/focus/f-news/1057861/posts

      Just changing the shape of the aircraft seems to lessen the sound already.

      --
      I really hate Dan Patrick.
  23. Bike.. by Hello+this+is+Linus · · Score: 2, Interesting

    I prefer transportation by bicycle...

    Good'ol human powered transportation never hurt any one..or has it?

    --
    Hello, this is Linus Torvalds, and I pronounce Linux as Linux!
  24. Re:Really big airplanes? by Oculus+Habent · · Score: 2, Funny

    They require completely new airports - out of the question in most large cities, where the cities grew around the airport and there is no possibility of expansion.

    --
    That what was all this school was for... to teach us how to solve our own problems. -- janeowit
  25. Ubiqutous, on demand public transport system by sisukapalli1 · · Score: 4, Insightful

    Some sort of AI based network of vehicles that are available on demand (the nearest parked car will come to you -- or to the nearest "junction"). No one needs to "own" a vehicle. They will all be safe too.

    Oh, that, and cities rising vertically instead of horizontally via suburban sprawl, leading to afforable housing for all.

    S

  26. I'll give you a reason by ctime · · Score: 5, Insightful

    The number one reason why we don't have flying cars: People would have to fly them. Anyone who's ever had to drive more than day in their life knows what im talking about.

    1. Re:I'll give you a reason by NeMon'ess · · Score: 3, Interesting

      The answer lies in waiting for AI to mature enough to drive cars / planes automatically. All the vehicles communicate with some form of wireless. Perhaps some centralized computers analyze traffic. Many sensors per vehicle monitor parts for degradation, like SMART does for hard drives. Deteriorating vehicles are allowed more space and eventually must seek maintainance. Otherwise they are not allowed in the Autopilot Lanes on the freeways or skyways. To prevent aircars from crashing and cluttering the sky, cars would still stay in sky-lanes. North / South traffic might be at 1000 meters. North-East / South-West traffic at 1200 meters. East / West traffic at 1400 meters... Sky-interstates from Seattle to Portland on to Sacramento, Bay Area, Los Angeles, San Diego at 2000 meters.

  27. Electric cars, I hope by ChiralSoftware · · Score: 2, Interesting
    The technology is all there. AC Propulsion just took a trip from LA to Vegas in a lithium-battery car. That's all the range we need for a practical car. They did it using thousands of off-the-shelf mobile device lithium batteries. How much would it cost if automotive-size lithium batteries were mass-produced? I'm guessing prices would be competitive with the price of a new ICE car, except that electric drivers won't ever have to worry about gas going to $3/gal.

    Also I hope that cities start being designed to be anti-car, meaning they are designed to be accessed on foot or by public transit systems. If you've ever been to Singapore you know what I'm talking about.

    ---------
    Create a wireless web site

    1. Re:Electric cars, I hope by fucksl4shd0t · · Score: 2, Insightful

      AC Propulsion just took a trip from LA to Vegas in a lithium-battery car. That's all the range we need for a practical car.

      Range isn't the problem, it's charging time. When it takes > 8 hours to charge, it's unreasonable for daily driving, and completely useless for cross-country driving. Consider a car now, charging time is time at the pump and you're fully charged. I could throw an electric motor in my truck now, sacrifice half the bed-space for batteries, and commute every day with it. But that's all it would be, then, a commuter. (Cross-country driving does require my truck stop for gas pretty much on the hour) Range isn't the problem and hasn't been for some time. :)

      What's really needed isn't batteries, unless they can be charged in 10 minutes. What's needed is a fuel-powered generator where you can refill the fuel in 10 minutes and generate enough electricity to get range at least comparable to gas-hog cars. And the fuel needs to be renewable and not fossil, of course.

      --
      Like what I said? You might like my music
    2. Re:Electric cars, I hope by fucksl4shd0t · · Score: 2, Informative

      Yeah, it would be nice if green energy sources were available to power those cars, but they aren't so why not start on that problem first?

      That problem is already at least partially solved, if not completely. Ethanol supposedly combusts into clean products, unlike gasoline. I suspect in real-world applications it would be less perfect, but still cleaner, anyway, and renewable. (I disagree with a previous poster about farming capacity for ethanol, but so be it)

      The reason ethanol isn't "here" yet is similar to this:

      Toyota (no slouch in the efficient production arena) cannot even produce a hybrid vehicle at a profit

      In this area you are at least partially mistaken. Toyota can produce their hybrids at a profit, and they do think they could make a long-term profit if they produced them at a profit now. However, they want fast adoption of hybrids, and they think that they will make more profits off them in the long run if they get fast early adoption. So they sell them at a loss to get the adoption they need so that the demand will go up and the economies of scale will kick in and bring production costs down so their margin will resemble their existing margin on other models. *phew that was a mouthful*

      The problems with electric cars, some of which you outlined so well, are exactly in power. For electric cars to become practical, they must carry the source of power generation within them. The hybrid technology Toyota's working on may ultimately result in electric cars carrying their generators with them, I don't really know. But as you've pointed out, battery technology won't handle it. (You left out charging time on that issue, I noticed) I don't think fuel cells will be the answer either, but I could be wrong about that. ;)

      Toyota (and Honda, I might add) reached a compromise with their hybrid cars. I suspect they could build a car with a small generator running off propane or ethanol or something that used an electric motor for torque. The problem is that the oil companies would kill it. So the hybrid car is a compromise, and once Toyota can demonstrate enough demand and gain consumer confidence in the technology, the oil companies won't be able to kill a car that doesn't use oil ripped out of the ground. I'd be curious to see if Toyota and/or Honda are invested in any of the oil companies and if they've been pulling out of them at all over the last few years. It seems like a they'd invest in oil the same way HP would invest in ink.

      --
      Like what I said? You might like my music
  28. GO Transit by Kenshin · · Score: 2, Informative
    The trains that come into the city only do during rush hour (which is good, but it'd be nice if it was at least 18 hours a day).

    What dark subway tunnel do you lurk in all day? The GO Trains, brining people all around the 905 into the city, run from about 6am to 12:43am. I use them all the time...

    --

    Does it make you happy you're so strange?

  29. End of Oil? by DarrylKegger · · Score: 2, Interesting

    Many automotive pundits believe that hydrogen fuel cells are the way of the future, but what is often misunderstood is that hydrogen is merely an energy carrier, not a source, and as such has to be produced from some other source, ie oil, nuclear, solar, squirrels on a wheel etc. Finding a viable alternative to petroleum based transport is vital if some of the prominent oil geologists are to be believed, many of their predictions see oil production unable to meet demand as early as 2010. For further info google "peak oil hubbert"

    1. Re:End of Oil? by fucksl4shd0t · · Score: 5, Insightful

      For further info google "peak oil hubbert"

      Or you can read my post. :)

      Hubbert, in the 50s (I think it was 1954) forecast that American oil production would peak within 30 years. And it did. Nobody believed him, everybody laughed at him, and in the 70s american oil production peaked.

      You might think "peak is good" right? Well, peak is not good when you're talking about oil reserves. Peak is the magical point where after you have peaked, there will be no further production growth, only shrinkage. Peak refers to an oil field reaching approximately half-depletion, but not necessarily. So when oil production worldwide has peaked, after that there will be no production growth. To counter this, all we need (heh, really!) is some new technology that creates a shrinkage in demand, hopefully a shrinkage that is equal to the shrinkage in production.

      After oil production peaks, expect the drop-off to be sharp, painful, and to create an economic catastrophe like nothing you'd ever imagine.

      Some geologists are predicting peak within a decade. Bush's own energy advisor says we're peaking *now*. He also says there isn't any way to know with current technology when we've peaked until after it happens, and that we have no plan B in place for when it does happen. So that means two things. First, it means we can't predict when oil production will start shrinking. Second, it means that when it does, we're immediately fucked.

      The Hubbert reference is important because it's historical precedence for the fact that oil production in a field will peak, and it doesn't take much brainpower to determine that oil production world-wide will also peak. Oil is a finite resource, and without proof of life on other planets we can't even expect space exploration to solve this problem.

      Fortunately, this is an area where every single one of us can help, and it doesn't require zealotry to do so. ALl you have to do is realize that oil production will peak, understand that it may be peaking right now (but we have no way of knowing), that oil is a finite resource, and then take action on it. The only action you need to take is with your spending decisions. Spend your money to promote non-fossil power sources of any kind, any time you need to make a power decision. Support companies that promote weaning ourselves off oil, and don't support companies that promote further dependence on oil (yes, that means propane is not a viable alternative, since it's made from byproducts of the oil refinery process). If you're going to buy a new car and there's a hybrid option, take it. And so on and so forth. It doesn't require passion or any of that crap, just pragmatic acceptance that we don't have a plan B for when it happens, and that it will happen no matter what, eventually. Even if it's 100 years from now. (I'm inclined to believe Bush's advisor who says it's happening now) Preparing for the future isn't that hard, if we just spend a minute thinking about it. ;)

      --
      Like what I said? You might like my music
    2. Re:End of Oil? by CommieLib · · Score: 2, Insightful

      I'm not sure how much of this whole problem is just warmed over Malthusianism (I'm sure the author of the parent knows what that means, everybody else just look it up).

      I don't accept the premise that peak production reveals anything meaningful about the remaining supply. Production may fall for so many reasons, including OPEC's machinations, increased fuel efficiency in cars (good grief, that certainly has increased since the 70's), etc.

      As it has been noted endlessly, there's an enormous supply of petroleum out there given a higher cost of extraction. Not far from where I live in the Fort Worth area, there's a town called Thurber. Thurber has the largest known deposit of bituminous coal on Earth (at least that's the town's claim). Thurber is also notable because it's a really cool ghost town. It's a ghost town because it developed as a mining town, and then far cheaper sources of energy became available. Almost all of that coal is still down there, just waiting for the energy prices to rise to the point where they justify extraction.

      The bottom line is this: alternative energy sources are absolutely as well developed as they need to be at this point. The existing petroleum supplies at higher extraction costs provide us plateaus that we will fall to as cheaper sources are depleted. As we fall to those more expensive petroleum alternatives, the alternative sources will become more attractive, and attract development, and fix the problem. There might be some stutters as we drop from one plateau to another, but nothing big. We could always grow up and realize that nuclear power can work in the interim.

      As per your recommendations, I'm always skeptical when micro tries to lead macro. It's just that the effects are so hard to predict. I would suggest that absolutely, if you want a hybrid for the fuel efficiency, you should buy one, but you shouldn't buy out of any larger plan to save the world because the effects are just too complex. For example, by buying a hybrid, you're obviously reducing demand pressure on the price of petroleum, which makes it more precious compared to solar. One might reason that, as a private individual, the best thing you can do to promote alternative energy sources is to drive a big SUV, which will drive up petroleum prices (infinitesimally). Of course, this has its own set of unexpected circumstances (introducing economies of scale, for instance), so I tend to just throw up my hands and say, "I just have to solve my own family (i.e., micro) problems and let the world take care of itself, for the most part."

      --
      If your bitterest enemies are people who hack the heads off civilians, then I would say you're doing something right.
    3. Re:End of Oil? by burbilog · · Score: 2, Insightful
      After oil production peaks, expect the drop-off to be sharp, painful, and to create an economic catastrophe like nothing you'd ever imagine.

      No, we have all solutions today. Ready, right now. They aren't profitable because it's cheaper to make $2/barrel hole in Saudi soil and suck oil there.

      We have the technology for the car consuming 1 liter per 100 kilometers. Right now. Volkswagen's 1-liter car. It's almost consumer-grade. But nobody will buy it because everyone buys huge SUVs.

      We can drive cars on methane. It cost about $600 to switch a truck from gasoline to methane here, in Russia and I doubt that it would be more expensive in U.S. or Europe. The only problem of switching to methane (any gasoline engine can run methane) is heavy baloons and even today you can buy kevlar-reinforced baloons with reasonable weight. But while methane is dirt cheap people rarely do this, it's easier to use benzine while it's more than twice expensive. And the Earth has enough methane to live for another hundred and half years (definitely enough to get cold fusion into production).

      Germans fought during WWII using synthetic fuel. If the price of the oil barrel goes over $40 then the technology of the past becomes viable and we can start making fuel from coal -- and the Earth have enough coal for hundreds of years. Last synthetic fuel factory in Germany was closed in sixties because it was impossible to compete with dirt cheap oil.

      So we have plans B-Z available right now. But oil is still cheap enough to keep these plans in archives...

  30. Can't hijack a train by ObjetDart · · Score: 2, Insightful
    Well, I suppose you can, but you can't crash it into anything. Well, I suppose you can, but only the station at the end of the line.

    As I recall, right after 9/11 suddenly D.C. politicians were talking about how maybe neglecting our national rail system was maybe not such a good idea after all. I was heartened by the possibility that we could be at the dawn of a new rail era. Well, that lasted about 1.5 days. Then it was back to business as usual and the good ol' auto lobby calling all the shots.

    --
    I read Usenet for the articles.
  31. dubious speed arguments by big!theory · · Score: 5, Interesting

    the jury is out on whether high speed rail systems are economical. the fingers are typically pointed at systems in Europe or Asia that aren't analogous to the geography and population density of much of the United States.

    part of the cost and inefficiency of air travel is caused by our hub-and-spoke air network system. this forces a lot of connections and short hops that could be unnecessary.

    James Fallows wrote an interesting book about the very-near future of air travel. He makes the case that we need smaller regional airports and smaller high efficiency jets. These would allow many of us to make direct city-to-city flights without the need to go thru congested hub cities.

    Check out Fallow's Free Flight at Amazon. Free Flight
  32. The catch about high speed... by gloth · · Score: 5, Insightful
    ...is that the actual flight is only a small part of the trip.

    I, for one, live near the Raleigh/Durham airport. My next trip will be to New Orleans. With standard planes, that's a flight time of maybe 2 hours and a bit. But what about my trip, as it is?

    • Driving to the airport: 0:10
    • Parking, waiting for shuttle to bring me to the terminal: 0:20
    • Checking in, security, waiting, boarding: 1:00
    • Flying to Charlotte: 1:00
    • Waiting for connecting flight: 1:10
    • Flying to New Orleans: 2:10
    • Waiting for baggage, shuttle: 0:40
    • Drive to French Quarter: 0:30
    So, now the grand total is: 7 hours. If I was on a jet that can reach Mach 7, and would be allowed to do so over land, how much time would this really save? In this example, maybe something between 1 and 2 hours. So, I save about 20 percent of my travel time. Big deal. Having a direct flight, as I still had in 2001, would have saved me more.

    So, fast planes are nice and all, and if your idea of a commute is from LA to Tokyo, this is splendid news for you. For the rest of us, faster planes are a nice solution... just not for our problem.

    For what it's worth: this simple math is also the reason why Boeing's planned SonicCruiser didn't get anyone really excited.

  33. No more cars by aardvarkjoe · · Score: 4, Insightful

    Cars are inefficient and dangerous. In any moderately sized city (1 million or more), the infrastructure is enormous and yet is still inadequate -- gridlock occurs everywhere with annoying frequency. Cars are expensive to buy and maintain. They produce more than their share of pollution. Whatever the future of transportation is, I'm quite sure that we will see much less reliance on individual cars, and much more on mass transit.

    --

    How can we continue to believe in a just universe and freedom to eat crackers if we have no ale?
    1. Re:No more cars by MourningBlade · · Score: 4, Interesting

      I think that private transportation will remain the norm. The emphasis on ownership, of your transportation being your property, is very strong in the US.

      One of the other problems with mass transportation is that we seem to have "mass transportation = government operated" embedded in our minds. This is a real problem in car-oriented places, as people who don't use mass transit don't want to pay for it, and gov't operation somehow seems to lead to collective payment/subsidy.

      Maybe if we had some sort of efficient delivery method for packages, faster than the mail. So you could go shopping and your purchase would be home before/as you got back. Maybe then there wouldn't be such an emphasis on private transportation.

  34. Re:G Load by sashang · · Score: 2, Informative

    it's the acceleration not the speed that determins the g force

  35. car sharing by primus_sucks · · Score: 2, Insightful

    I know this is starting to come to some cities, but it would be great to be more widespread. Why should every person pay hundreds or dollars a month for a car they only use 10% of the time? If everyone just shared cars we could cut down the number of cars needed and also would create opportunities for car-pooling. It would cut down on US dependancy on foreign oil and help bring world peace.

  36. Re:Proofreading the title yields: by Chris+Burke · · Score: 2, Funny

    No, no, the title is correct. In the original draft, the author speculated about the effects that time-travel would have on the travel industry, and the possibility of accidentally sending the entire planet earth back in time. If that happens then before it happens we'll see an earth from the future appear in our orbit. We'll of course our earth gravitationally attracted to the earth from the future, thus "How Will We Get Around Near-Future Earth". Later editing made the submitter's title seem oddly un-proofread. Uh... I'm assuming.

    --

    The enemies of Democracy are
  37. energy source by huxrules · · Score: 2, Interesting

    I guess it will really depend on what energy source that will be invented next. I don't think that hydrogen will ever be a adopted fuel (to cold or too high pressure) for internal combustion. So I think that for cars we will eventually have to go to batteries or fuel cells- which sucks performance wise. As for large transport- trains do have a advantgage in that they don't need to cary their fuel if they are electric. Large fusion plants can supply the power to high speed trains trains. The big problem will come with airplanes- if we ever start running low on oil these contraptions will be to expensive to fly, or require to much space for an alternate fuel. Short term I am hoping the boeing sees the future and begins to fund its Blended Wing Body. A air transport that is truly massive and efficient.

  38. Hydrogen Powered Cars by a1cypher · · Score: 3, Informative

    It seems to me that alot of people arent putting much thought into these Hydrogen powered car alternatives.

    Sure, their only biproduct is H2O, but the hydrogen has to come from somewhere. It takes quite a bit of power to get H2 via electrolysis of water. And all that power has to come from somewhere.

    Hydrogen powered cars wouldnt really be more environmentally friendly, it would just make the consumer believe it is by shifting the responsibility from the consumer to the company in charge of generating the H2.

    1. Re:Hydrogen Powered Cars by prichardson · · Score: 2, Insightful

      See, hydrogen isn't a fuel. It's a great way to store energy, though. The thing with gasoline heat engines is that they are only about 40% efficient, but a gas power plant can be like 80% efficient. That's why H2 cars would be sweet. Ideally we would get out electricity from somewhere else (it's such a shame that plutonium is so toxic).

      --
      Help I'm a rock.
  39. Cars With AutoFollow by superid · · Score: 2, Informative

    In the next 5 years we will see cars introduced with viable "autofollow" where a car will know it's relative position in traffic and be able to safely autopilot itself. Toyota is already demonstrating it here

    1. Re:Cars With AutoFollow by dulles · · Score: 2, Informative

      Granted I didn't read the entire article you posted, but...

      It seems that this is plausible iff EVERY car on the road has this sort of autopilot. Human error can occur very quickly (in non-autopilot cars. alcohol?), and sometimes there really are no escape routes (unless you're on a motorcycle - the size and agility help!!).

      I therefore don't see how it would be feasible to introduce this technology so long as older cars continue to exist. No one will want to buy them initially (for safety and cost), and thus their numbers remain extremely low, further hindering autopiloting cars.

  40. Bicycles by crush · · Score: 4, Insightful

    In the not too distant future there will be futile attempts to halt our greenhouse gas emissions as the evidence mounts that we're facing a problem. These will possibly involve the most mechanically efficient short-range vehicle (the bicycle) for all those trips under 2 miles (to the video store etc) that we all take in urban centers.

    "When I see an adult on a bicycle I do not despair for the future of the human race." - H.G.Wells
  41. Cities are not built house by house by erice · · Score: 4, Informative

    The problem is that we seldom build cities. Cities morph -- especially in our suburban mindset we've have for the past century or so

    Cities are not built house by house though. Most of the time, whole subdivisions are built more or less at once. Most are not walking and biking unfriendly by accident. They are designed that way.

    They *could* put in sidewalks, but chose not to. Commercial and retail *could* be included but are not. New subdivisions *could* be criss crossed with minor streets great for bicycling but instead every neighborhood street ends in a cul de sac and traffic is diverted to arterials.

  42. SciFi ways by gmuslera · · Score: 4, Funny
    The nice thing about that is that a new discover could put them nearer than we think.
    • Transporters a la Star Trek, or another way of instant transportation could be cool, but we must get rid of those damn flys.
    • Wormholes thru earth! Cool! You could be in another place in seconds, and the rest of the world also! (is bad luck that that "another place" is called hell).
    • If an orbital elevator is done, why not build a ring around the world with elevators going up and down in strategical places? You could take an elevator, round around the earth, and descend in the other side of the world with almost cost zero and probably pretty fast.
    • Brain switching (i think i saw a movie about that last days :) upload your brain to someone's else brain, do what you have to do in the other side of the world and reswich to go back. The risk is with who you made the switch.
    • Duplicators: what if with certain process, an exact copy of you can emerge hundreds of miles away and do what you need to do? (well, unless you want to take vacations). The problem is what you do after with your clones (at least in Rogue Moon Algys Budrys had a solution)
    • Why use cars? just use rolling roads and people could go everywhere.
    • Last but not least: why travel? if everywhere exist good bandwidth, maybe most tasks could be done remotely and with voip and videoconferences the need to be in other places could be relative. And if you want to travel to rest, going slow will be better than going fast.
  43. Re:Probably no chance of most of those anytime soo by moxruby · · Score: 2, Insightful

    Oil is going to be WAAAAYYY too expensive to use for a trip to the shops within a couple of decades. There's just not that much left (even oil industry execs and Bush's energy advisor admit this!).

    There are currently NO forseeable alternatives to oil that will scale to allow Americans to keep driving personal cars. Period. The main two alternatives I see bandied about are hyrdrogen and ethanol.

    -Hydrogen is a lousy storage system, about 25% efficient for the electricity round trip. Unless someone invents cheap fusion, we won't be able to waste that much energy.

    -Ethanol requires large amounts of oil to produce it (tractors, fertiliser etc.) and we could never produce enough sugar to meet current levels of demand.

    I suggest you teach your kids to ride a bike, and maybe put a few away for the future. Oil is so inextricably linked to the manufacturing and distrubtions sectors of the economy that even a simple bike may become a commodity.

  44. Light Rail by orion024 · · Score: 3, Informative

    Here in Houston, the 4th largest city in the U.S., we JUST got our first light rail. Yes, our first. And sadly, additional funding for the program barely passed.

    The light rail opened the 1st of the year. So we are just coming to 3 months of service... and guess what? We've already had 31 accidents involving the light rail. That's one practically every 3 days... so sad, so very very sad. Apparently, people don't understand the concept of "don't stop on the tracks" and "don't turn in front of the train" here.

    Houston has some of the poorest public transportation I have ever seen. But, I have to admit, the light rail is a step in the right direction. Right now, I spend over 2 hours a day in my car... and this is for a commute of only 18miles each way. Hopefully, they will expand the light rail. Building and expanding more highways is _not_ a solution. Fortunately, the light rail seem to service a rather large volume, and has been well recieved. Too bad the expansions are going to take 10 years+ to complete.

  45. Sub-orbital transporters by Baldrson · · Score: 2, Interesting
    Foresight Exchange's "SOorb" claim reads as follows:
    Claim Sorb - Suborbital transport dominates Category: Science & Technology:Space

    bid 41, ask 44, last 42

    Suborbital transportation will exceed high-mach air transportation by the year 2020. "Suborbital" means any high-mach, non-orbital flight where the majority of the distance is covered without benefit of locally available gasses as the primary propulsion reaction mass. "High-mach" means the majority of the distance is covered at a speed of mach 2.5 or greater. "Non-orbital" means the total flight path distance is less than the circumfrence of the earth. "Locally available" excludes gasses that have been stored within the vehicle for more than 3 minutes. The metric for comparison will include passenger, luggage and cargo ton-miles over the entirety of the year 2020 as published in standard industry surveys.

  46. Ever seen a Cat skeleton in a tree? by core+plexus · · Score: 2, Interesting
    From the section about Jet Packs: "They will be handy for retrieving cats from trees, cleaning hard-to-reach windows and arriving in style at a party."

    Think about it: have you ever seen a cat skeleton in a tree? They find their own way down. Firefighters around here don't even respond to one of those calls.

    -cp-

  47. Re:Really big airplanes? by Ironica · · Score: 4, Informative

    They require completely new airports - out of the question in most large cities, where the cities grew around the airport and there is no possibility of expansion.

    Apparently, LAX can already handle the new Airbus A380... at least, to the same extent it can handle existing aircraft. (For years now, the space between the jetways has been inadequate for two planes to pull out side by side... they have to dovetail them carefully.)

    Where the problem really lies is not in the physical size of the runways and terminals, but the people-carrying capacity of the big hub airports. They already run most of them on a pulse system, where all the flights come in at the same time to make transfers easier. This means you're handling all your traffic at once, and have to hire enough people, open enough gates, etc. to handle all those passengers simultaneously (while those employees sit around with pretty much nothing to do for hours at a time between pulses). By increasing the number of people that can arrive on each plane, you stress the baggage claim, security checkpoints, vendors, etc. *inside* the airport a great deal.

    But for an airport like LAX, this isn't an issue. Flights are constantly arriving and departing, and 86% of the passenger traffic is beginning or ending their journey... very little transfer traffic, so not much pulsing. They're not overly concerned about the A380s. I think the Department of Transportation is more worried about the added street traffic they might generate.

    --
    Don't you wish your girlfriend was a geek like me?
  48. Re:Really big airplanes? by Moofie · · Score: 4, Informative

    How big do you want 'em?

    Actually, there is a strong movement towards smaller, more efficient jets to supplement the hub and spoke airliner infrastructure here in America. But the new Airbus A380 is going to be as big as anybody (who doesn't want to build new airports) is likely to need in the next several years.

    --
    Why yes, I AM a rocket scientist!
  49. one word: by Tumbleweed · · Score: 4, Funny

    Arcology

  50. Trains are in fine shape already. by ArsSineArtificio · · Score: 4, Interesting
    I have also heard it suggested that doing so would probably create many jobs in the US as the building and operations infrastructure was being put into place, not to mention the increased commerce between disparate parts of the US. I don't know the validity of these claims, but they seem reasonable enough. A good kick in the pants for us USicans economy if true, no?

    Setting aside the idiotic abbreviation "USicans" (hint: the proper term for citizens of the United States of America is "Americans", for citizens of the United States of Mexico is "Mexicans", etc.)...

    Although its passenger rail system could be accurately described as "completely useless" everywhere outside the coastal strip between Washington DC and Boston, the freight rail system of the USA is generally considered amongst the world's finest. With its already developed state, and tight integration with roadway freight, it's difficult to imagine in what way commerce between disparate parts of the US could be "increased" by building more rail links.

    --
    All employees must wash hands before seeking equitable relief.
    1. Re:Trains are in fine shape already. by modder · · Score: 2, Funny

      This goes against everything Civ ever taught me.

    2. Re:Trains are in fine shape already. by turgid · · Score: 3, Funny
      Setting aside the idiotic abbreviation "USicans" (hint: the proper term for citizens of the United States of America is "Americans", for citizens of the United States of Mexico is "Mexicans", etc.)...

      ...and residents of Texas are Texicans, or is that reserved for employees of the Texaco corporation?

  51. Paradigm shift... by Genda · · Score: 5, Interesting

    I think we're addicted to the wrong questions...

    The question should be how are we going to support a world with 10,000,000,000 people in it, while maintaining some semblance of quality of life. This idea of half a billion people in the U.S. going anywhere they feel like, any time they feel like, each in their own vehicle, which if by current standards continues is 7 feet high, 18 feet long, weighs 12 tons, sleeps 10, and get's 8 MPG, is at best insane. It ignores sanity on so many fundamental levels, I'm not even going to bother listing.

    Designing living habitats that provide people with clean, safe, lawful, aesthetically pleasing environments, that are high density and preclude the need to travel more than a few hundred meters to receive/deliver any needed service, would immeditely transform our society. At that point the edge of the metroplex, might provide a variety of transportation for folk going to and from other island cities. The metroplex is a three dimensional hive, with business, housing, and recreation all built tightly into an interactive, engineered space, with little or no impact on the surrounding land. This allows people instant access to everything they need from work to pleasure... while only being minutes away from wild spaces they can visit and enjoy. Literally tens of millions of people can exist in a tiny hive like city. A place that has been optimized for crime prevention, cleanliness, well lit open airy spaces. In short a perfect controlled environment.

    High speed rail, tube, or supercomputer networked controlled superconducting ribbon highways could easily manage regional transport. Ultra high speed air travel would be useful for travel to distant regions or other continents. Cable travel to geosynced space depots could carry passengers to cities on the moon, mars, callisto, europa, and ganymede. As well they might carry asteroid miners and their products to and from earth.

    Even horseback becomes a viable form of transport into the natural spaces surrounding the cities (horses being highly efficient for that particular use... hover cars, like the Moller being viable for trips longer than a days horseback ride.) One might even relegate such vehicles to rental only since anyplace in the hive could be accessed in minutes by people movers and other metroplexs could be accessed by mass transit.

    Any given form of transportation would only be viable depending on it's speed and efficiency. Each would inherently be designed and optimized to operate in a specific level of social/geographical granularity.

    The tremedous advantage in societal cost, safety, improved environment, ease of living, efficiency, and quality of life would make living in such a place, a slice of heaven. Enhanced taxbase, with tremendously reduced cost of living, would allow money to be available for fantastic free schools, enhanced medical care, and a gorgeous, sparkling infrastructure. Who wants to move in? I know I do!

    Genda

    1. Re:Paradigm shift... by Un+pobre+guey · · Score: 5, Insightful
      Very imaginative! Unfortunately, this claim is unsustainable:

      The tremedous advantage in societal cost, safety, improved environment, ease of living, efficiency, and quality of life would make living in such a place, a slice of heaven. Enhanced taxbase, with tremendously reduced cost of living, would allow money to be available for fantastic free schools, enhanced medical care, and a gorgeous, sparkling infrastructure.

      Your world would be incredibly expensive to build, and the "enhanced taxbase" is almost certainly a mirage. For society to pay for such huge and expensive infarstructure and expect a "tremendously reduced cost of living" is a non sequitur from the start.

      The greatest problem would come from high population density. The cost of sewage, water, power, and so on for such large and dense habitats would be very high. Densely populated areas tend to be high in crime and low on "crime prevention, cleanliness, well lit open airy spaces."

      Nevertheless, I wholeheartedly agree with your initial premise:

      The question should be how are we going to support a world with 10,000,000,000 people in it, while maintaining some semblance of quality of life. This idea of half a billion people in the U.S. going anywhere they feel like, any time they feel like, each in their own vehicle, which if by current standards continues is 7 feet high, 18 feet long, weighs 12 tons, sleeps 10, and get's 8 MPG, is at best insane. It ignores sanity on so many fundamental levels, I'm not even going to bother listing.

    2. Re:Paradigm shift... by Ugmo · · Score: 2, Interesting

      I am a great believer in such concepts of living close to services so that cars are unnecessary. I grew up in NYC, much of which still holds onto a pre-car layout putting people close together and de-emphasizing the car.

      I find it interesting that urban sprawl and suburbia really took off after WWII due to Federal Highways and Federal Mortgage programs. Such programs could have encouraged living in more compact designs by only lending to people purchasing condos in central cities. Instead it made it possible for people to purchase homes further and further from the city center.

      It may have all been coincidence, but Suburban sprawl does happen to spread out the population and the factories they serve. During WWII a major stategy of the US was to bomb enemy cities to deny the enemy armies material and supplies. With the invention of the Atomic bomb it became easier to wipe out compact cities. If the US became one big sprawl from coast to coast, it becomes harder to knock out population and factories leading to greater survivability in war. Was this encouraged or accidental?

      Unfortunately, this strategy is proving a vulnerability now. It depends on fossil fuel under the control of foreign, sometimes hostil countries. It is now a matter of national security to move to a plan like you propose. But such densly populated structures are vulnerable to terrorists as well as nukes.

      We may need to wait for world peace to have sensible living arrangements.

  52. How to Replace All Private Transit with Public? by kenjib · · Score: 5, Interesting
    I hope that the automobile will go down as one of the great engineering disasters of history and a strange historical footnote. While the infrastructure impact has been massive economically, the large numbers of deaths every day related to automobile use, the destabilization of international politics cause by oil dependency, and the devastation of the environment are simply a huge disaster.

    Current mass transit systems have serious shortcomings that prevent 100% adoption though, so what problems do we need to resolve for a public transportation system to be appealing enough that private transportation is no longer a desirable alternative?

    1. It needs to get you there quickly. You shouldn't have to transfer between different lines and different modes of transport and arrive at your destination 45 minutes later when you could have been there in 10 minutes via car.

    2. It needs to provide door to door service. You shouldn't have to walk a few blocks, hop in a car, or take a bus, to get to a station and board public transportation.

    3. It needs to be cheap. Public transportation already wins here when you factor in all the extended costs of car ownership. Most of the time your car sits unused in a driveway, garage, or parking space, and in the bigger picture that's just money ticking away by the minute in terms of us having a *much* larger fleet of vehicles overall than we need.

    4. It needs to always be available. It can't stop running from 12am until 6am.

    5. Travel needs to be private/not shared between passengers. You should have a car/coach/capsule that is private for you or you and companions for the duration of your trip.

    6. It needs to be comfortable. A public system could have many advantages here, not having to drive is one of the biggest.

    7. It needs to be be ubiquitous and extend everywhere. You should be able to go anywhere using the system that you can with a car.

    I think all of these criteria could be met by replacing our entire road system, down to the last street and cul-de-sac, with a tube or rail system and having numerous individual cars/capsules that arrive on demand and take you where you want to go, all routed by computers (kind of reminiscent of the old pneumatic tube message systems). The cars/capsules could be privately owned, but I think it would work much better if they were shared/pooled to dramatically reduce the costs. I can think of ways to combine/support both options.

    You would only need private/off-grid vehicles for specialized tasks. They could be designed to connect to the grid to get to a location and then detach and run independently at the job site.

    I wonder how, cost-wise, this would compare to the entire road and automobile infrastructure, including what we each pay for private car ownership and maintenance. There are lots of interesting implications to this. What effect does it have on the idea of a neighborhood? The commercial strip? What do we do with all of the reclaimed space if roads are replaced by something with a much smaller footprint (do urban homeowners all get their lots extended by several yards or do we create some new system of a public greenspace grid)?

    Is this a bad idea? What kinds of systems are being proposed out there for this kind of a broad shift toward something that is more humane, convenient, and cost-effective, then the mess we have today?

    1. Re:How to Replace All Private Transit with Public? by Un+pobre+guey · · Score: 3, Interesting
      I think you were doing fine until you got to

      I think all of these criteria could be met by replacing our entire road system, down to the last street and cul-de-sac, with a tube or rail system and having numerous individual cars/capsules that arrive on demand and take you where you want to go,

      The massive infrastructure cost and environmental damage would be comparable to paved roads and highways.

      Tough nut to crack, but perhaps one can imagine a system of public electric automobiles that you just grab, use, and abandon. Unfortunately, it begs questions such as where the electricity comes from; how the cars are manufactured, distributed, maintained, and disposed of; what happens when you go somewhere and you have the only car, and someone takes it soon after you get there; how is all this paid for; etc.

      Back to square one, or maybe I'm unable to switch entirely out of the private vehicle mentality.

  53. Forget flying cars by KalvinB · · Score: 3, Funny

    with all this genetic engineering go on, I want my flying monkey.

    I don't care if it's a european or african flying monkey. As long as it can hold the weight and get me to work.

    Ben

  54. Dubious transporation scheme! by xheotris · · Score: 5, Informative

    I've heard the Free Flight theories... I know NASA's been pouring money into it.

    It's a waste. As someone in the aviation industry, I'll tell you it's a crock and a waste of taxpayer and corporate R&D dollars, though it doesn't have to be. Light jets... does anyone KNOW what the cost of maintaining an aircraft, let alone a TURBINE aircraft is? You can't just get parts at AutoZone and let some yokel install them. And turbines ain't cheap!! A Cessna 172 burns about 9 gallons of fuel per hour (gph), or 54 pph. A light jet engine powering an aircraft that could carry a similar load would burn at least to 150-200pph. (20-25 gph, a figure quoted for a proposed jet using the Williams International FJX-2). Furthermore, that's at altitude-- tubines are very inefficient at altitudes below 29,000 feet. And if you're making small hops, you spend a lot of time dinking around below FL290.

    Secondly, consider why the cost of general aviation has skyrocketed after September 11, 2001. Fuel doesn't cost much more, nor do aircraft, nor hangars nor landing fees. Insurance is the cause of the rise. And insurance for TURBINE aircraft is higher, much higher. Insurance for single-pilot turbine ops is insanely high, because turbine acft are both complex and very fast. Complexity and speed mean you can get behind the aircraft much, much more easily. Having an autopilot doesn't mean a thing, because what kills people now is getting behind on the damn button-pushing and forgetting to FLY the aircraft. Pilots spend too much time head-down, programming, and not paying attention to where they are and what the plane is doing.

    I haven't heard ANYONE credible address how the insurance companies will treat a new generation of unproven light jets that fly random courses across the country, landing at small airports, and that are designed to be flown by ordinary owner-operators instead of professional pilots.

    Third, where will we fly these things? We're currently revamping airspace above FL290 to increase the capacity of the system, and this requires a LOT of new (read: expensive) equipment for DRVSM. Oh, and one other thing: You can't just hop in a jet and fly away- you MUST have a type rating, and those generally cost about $10,000 and require more smarts than driving your Lexus to Starbucks for coffee. New transportation scheme? Only for the insanely rich. Free Flight is a lame duck in my book.

    1. Re:Dubious transporation scheme! by xheotris · · Score: 2, Informative

      "Pph" means pounds per hour. A gallon is a volumetric measurement, and for purposes of calculating weight and balance, it's converted to pounds, usually with assumed standard temp and pressure. Six pounds per gallon for avgas, approximately 6.7lbs per gal for Jet-A.

      Turboprops ARE more efficient,achieving a propulsive efficiency of over 80% versus about 60% for a high-bypass turbofan, but that efficiency fall precipitously above .5 mach.That's because they use the energy released differently. Jets and props both generate thrust, but the thrust generated by a prop is low-speed, high-mass, and they are much more efficient in thicker atmospheres. You aren't depending on accelerating small quantities of air to high speeds. This works better the higher you go, because jets run in a perpetually lean conditions. Stoichiometric values are about 14 parts air to each part gas, but jets run in the hundreds of parts of air to each part of fuel.

      The Dash 8 is powered by various Pratt & Whitney Canada turboprops, from 2,000 to 5,000 shaft horsepower, and is considered an exceptional plane. However, it's speed is limited by the fact that props can only operate efficiently at lower speeds. I haven't been able to find specific fuel consumption figures yet, but I discovered that the PW100 series engines have twin radial flow (like a turbocharger), rather than axial flow, compressors, and that acutally surprises me- I'd thought the application of radial-flow compressors was limited to engines of less than 1500 horsepower, due to flow inefficiencies. I DO know that the Honeywells on a Rockwell Turbo Commander are much more efficient than similarly powerful PT-6s for several reasons. The Honeywells are gear-driven- if you turn the prop, you can look in the intake and see the compressor turning. But the PW100 has a free turbine to drive the blades, meaning that the prop is driven by a second set of turbine blades that are not mechanically connected to the turbine and the compressor of the core engine. All the jet engine does, in this case, is generate a flow of high-temp, high-velocity air to drive the free turbine.

      As for jets flying short commuter hops like the one you mentioned, it'll never happen. Jets, even turboprops, burn way too much fuel at low level to ever achieve cost parity with piston engines. Besides, the difference in speed over 50 miles is negligible when you factor in the time spent getting to, and through, the airport. On the flight you took, I do find it odd that the pilot stayed low. How long was the flight? It might be that it was more efficient in terms of time to stay low than to climb up, then descend. A short flight makes climbing into the flight levels less useful. Flights on smaller airlines are generally more because the majors have hundreds of seats per flight to spread fixed costs across, and they get much better fuel prices, since they buy hundreds of thousands of gallons at a time... All in all, I'd rather fly slow, low, and see what's going on outside. :)

  55. Re; High speed trains by callott · · Score: 2, Informative
    "The proposed HSR system would even be more expensive than driving."

    Do the figures you cite include the massive governmental subsidies of highway systems? The Federal Highway Administration alone will spend more than $32 billion in FY 2005. This goes up to $36 billion next year and doesn't include the massive expenditures by state and local governments. That's tax money coming directly out of your pocket and mine.

    There are many other non-obvious costs of cars, such as the fact that vast amounts of the space we live in is designed for use by cars instead of people.

    High-speed rail is not necessarily the answer for California or anywhere else. Just remember that there is lot more to the cost of a car than the sticker price, insurance, repair costs, and fuel.

  56. You really want maglev in the USA. by MtViewGuy · · Score: 3, Insightful

    I think for high speed trains to work in the USA, you want trains that have to be really fast.

    The thing about the USA is that because of the sheer physical size of the country, steel-wheel trains are not going to be practical for travel beyond 275-300 miles between your origin and destination points. At speeds over 186 mph (300 km/h), the physical contact of steel wheels with steel rails and the overhead wiring will cause considerable wear on the trainset on large-scale revenue service. I don't expect steel-wheel trains to be travelling much faster than 330 km/h in the long run.

    For the type of distances involved in the USA, it's time to finally do a major development program to make maglev trains economically practical. Since maglevs could travel as fast as 310 mph (500 km/h) relatively easily without attendant wear on tracks and/or the trainset (since there is no physical contact), this makes it possible for journeys between even relatively widely-spaced apart cities in well under two hours; imagine going from Chicago to Minneapolis-Saint Paul in just over a hour! :-)

    Maglevs may not be necessary in Europe and Japan given the relatively short distances between major population centers, but here in the USA, the extra speed to shorten travel times is a very good idea.

    1. Re:You really want maglev in the USA. by bware · · Score: 2, Insightful

      imagine going from Chicago to Minneapolis-Saint Paul in just over a hour!

      The problem is, what do you do once you get there? How is public transportation in M-SP? (No, really, I'm asking, I don't know.) But replace that with LA-Las Vegas, and ask the same question. Neither place is particularly easy to get around without a car once you are there. The reason passenger rail works in the BoWash corridor is that there is public transportation once you get there. So the problem becomes a much bigger one of building high-speed passenger rail, and building public transportation at the end points.

  57. Not just Segway by A+nonymous+Coward · · Score: 2, Insightful

    What do you do if you're 3 miles from home and your car runs out of gas? What do you do if you're 3 miles from home and your bicycle gets a flat you can't fix? What do you do if you're 3 miles from home and your shoe falls apart?

    1. Re:Not just Segway by dpilot · · Score: 2, Insightful

      Your car has locks on the door. In many (though not all) parts of the country, you can lock the car, get a ride to get gas, and return expecting to find a car to refuel.

      Both the Segway and bike are small enough to steal, so you can't leave either by the road. But even with a flat, a bike is fairly easy to push along.

      Failures happen. You need to make sure you always have a recovery posture. When driving in winter, I always make sure my footwear and other clothing is good enough to handle any walk from a breakdown on my route. The Segway seems poor in this respect.

      --
      The living have better things to do than to continue hating the dead.
    2. Re:Not just Segway by jonfelder · · Score: 2, Insightful

      Call a cab and throw it in the trunk...

  58. yeah, when the Concorde flies again by qromodyn · · Score: 3, Insightful
    If the Concorde failed because it was too expensive, how is a 5000 mph rocket ship going to be competitive?

    This reminds me of the talk of colonizing Mars. A lot of people say we could colonize Mars after we destroy the Earth. It is and will always be a lot easier to live in the Gobi desert than on Mars, regardless of the amount of pollution!

  59. My dreams for the future!!! by rock_climbing_guy · · Score: 2, Funny
    My alternative transportation system was working pretty well until I ran out of hamster food. I've scrapped the project for now.

    Now, I'm looking into alternate methods to power my g#4gFW43[NO CARRIER]

    --
    Wh47 d1d j00 541, 31337 15n't t3h r0xor5 ne m0r3???
  60. Anyone who thinks Mach 7 is about travel by Elwood+P+Dowd · · Score: 5, Insightful

    Anyone who thinks Mach 7 is about travel is a horse's ass.

    We need to get our planes fast enough that we don't need Turkey's permission next time we want to drop bombs in the Middle East on 15 minutes notice.

    --

    There are no trails. There are no trees out here.
  61. Robotic taxis by erice · · Score: 2, Interesting

    Some sort of AI based network of vehicles that are available on demand (the nearest parked car will come to you -- or to the nearest "junction"). No one needs to "own" a vehicle. They will all be safe too.

    Functionally, we have that today. They are called taxi's. Of course they are operated by humans rather than AI's so the cost is rather high. Still, I think it is clear that you need quite lot of density to make this reasonably cheap and convenient.

  62. Trains and cars - in one personal unit! by NKJensen · · Score: 2, Informative

    This idea is to make a car, which can travel roads and a special rail which also supplies power. High speeds are obtainable on the rail and batteries are charged while the car is on the rail. Off-rail travel will be battery powered.

    Rapid Urban Transport may be a good solution for large cities. And most big cities grow larger every day.

    (No, I'm not related to the inventor, Jensen just happens to be the most common name in Denmark)

    --
    -- From Denmark
  63. Distributed Maglev by galgon · · Score: 2, Interesting

    Here is the idea: convert all major highways to maglev tracks. Then sell cars that can double as a maglev train. So you could drive to the interstate input your destination and use the computer controlled maglev system to take your car to your exit. You can read the newspaper, sleep, watch dvds, ect. until you reach your exit. No more waiting for planes (except intercontinental travel and coast-to-coast journeys) and you still have your car when you get to your destination. This system would solve all of the major problems with highway transportation, cut down on commute time and cause a huge drop in fatal car crashes.

    Yes, this system would take probably 50 years to implement throughout the country and yes, the cost of such a system would be ungodly, however baring the invention of star trek like transporters this seems like the best idea for the future of transportation.

  64. How Will We Get Around Near-Future Earth? by Daetrin · · Score: 2, Funny

    "How Will We Get Around Near-Future Earth?" Why? Is it in the way of something?

    --
    This Space Intentionally Left Blank
  65. Transportation is Evil by SlideGuitar · · Score: 3, Insightful

    Here's my prediction. In an ideal world we will travel less distance, and more slowly.

    Goods and information will be moved to people, and make people virtually present to each other.

    Highways will be torn up. Roads will be planted with trees. Travel will become more not less expensive, as it is required to bear the FULL cost of the ecological and habitat destruction that cutting transportation corridors causes...

    My utopia is an antitransportation utopia in which people stay in places that are so good that they don't want to go very far, so rich that they don't need to go very far, and so well served materially that and socially that they choose not to travel.

    In the ideal world instead of subsidizing the environmental destruction of highways, airports and transportation technologies of every kind, we will make them pay their true cost, and work on creating PLACES.

    Transportation is fundamentally about destroying PLACE....

    Transportation is the enemy of PLACE.

    Movement is a seductive fantasy... it seems to present so many opportunities to the individual, and yet it makes every place the same, and destroys the habitats and environments that lie between places....

    Movement is what we all want, but that doesn't mean that we or our planet is better when we have more of it, or faster versions of it....

    Just the opposite. Transportation is a seductive illusion... it gets you from here to there, but only at the cost of destroying the difference between here and there and everywhere in between.

    1. Re:Transportation is Evil by peatbakke · · Score: 2, Interesting

      Bah. Anyone who's lived in a densely populated, culturally diverse area knows that this is a load of tripe. Diversity and "place" thrives where people come together to share ideas and goods.

      People cling to their native cultures and societal structures with rabid tenacity, particularly when "threatened" by outside influences. Take a look at Europe, India, or supposedly homogenous cultures like China, and you'll find that a sense of place is still very, very much intact. In fact, as our population grows and mingles, more "places" are created -- all of our cultures, societies, and sacred "places" are the product of thousands of years of travel and communication.

      I agree that it is good to preserve the aspects of your culture that are important to you, but it's also critically important to learn from what others have to offer: it's quite possible that they have better ways of doing things; better in the sense that it "fits" you better, not necessarily that it's faster or easier.

      Place, culture, society -- these are all dynamic things. Utopianism and antiwhateverisms are the seductive illusions you speak of, not the essential human tendencies to move about and socialize.

      Cheers.

  66. part of the solution. by caridon20 · · Score: 2, Interesting

    have a look at http://www.skytran.net/
    Their consept solves some of the major problems that have keept the car a better option than comunal transportation.

    skytran has:
    1) no waiting (spare "pods" on every station)
    2) point to point transportation. (every "pod" is independently routed)
    3) high point to point speed (no intersections and no intermediate stopps.)
    4) cheap. (no driver so costs are only material)

    There are still several tecnical hurdles to overcome but this is the best idea for a future trasnsportation i have ever seen. /C

    --
    You dont have to be an analretentive nitpicker to be a tester.... But it helps :)
  67. Incomplete treatment of the subject... by Safety+State · · Score: 2, Funny

    Although we often speak of increased efficiency in the means of propulsion and in the production of fuel, we too rarely consider the gains promised by more radical approaches.

    One might, for example, achieve high-velocity subjective travel merely through a distributed effort to rearrange human definitions of location. By exchanging Surrey and Essex in the general social awareness, humans could potentially travel instantaneously between the two. With digital technology such a measure is no pipe dream; its only complication lies in the difficulty of cooperatively scheduling each individual's location at a specifically desired time.

    Another approach which may alleviate the inefficiencies of travel altogether is to restrict each human corporeally to one narrow venue, preferably bounded by chain or wire mesh, within which that human may live free of geography's inconvenience. Such innovative measures are already being developed globally, and it is a simple question of how quickly all humans can be accused of terrorist sympathies before we can consider ourselves to have discovered the future of transportation.

  68. Flying cars - from Wikipedia Brittanica (2050) by Epeeist · · Score: 5, Funny

    The era of flying cars started in Britain about 2010. The Smart car company was the progenitor, essentially by adding a pair of wings to its lightweight vehicle. The introduction was timely, in that the minority coalition of Conservative and New Labour parties, under their "Privatise everything" policy were introducing tolls on all roads. The flying car avoided this by not using roads at all.

    The concept quickly spread to Europe, causing the Channel Tunnel company to become bankrupt.

    The idea was imported to America but was a distinct failure. Although the country would have seemed ideal for such an invention the inability of American companies to make a "Flying Humvee" that would do more than half a mile on full fuel load meant that it never caught on.

  69. Re:Well by Inda · · Score: 2, Insightful

    Excelent post. Excelent ideas.

    As my PHB would say: "When can you have it finished?"

    --
    This post contains benzene, nitrosamines, formaldehyde and hydrogen cyanide.
  70. Re:Really big airplanes? by xeper · · Score: 2, Informative
    I was looking for a reference to Boeing's Blended Wing Body (BWB) when I posted the previous message, now I've found it. 800 passengers.


    Well, passenger capacity for the A380-900 Single Class will be a maximum of 986.
    Howerver, normal 3-Class configuration will have a capacity off 555 (A380-800) or 656 (A380-900) passengers.
    --
    While money can't buy happiness, it certainly lets you choose your own form of misery.
  71. That sounds dire by pommiekiwifruit · · Score: 2, Insightful
    Within 100 yards of my suburban apartment at the outer limits of London there are: 2 churches, 1 school, 1 cafe, 1 off-license, 1 pharmacy, 1 tanning salon, 1 computer shop, 1 kitchen salesroom. Within another 100 yards there are drycleaners, chinese, indian, more churches. Within 20 minutes slow walk there is a 24 hour large supermarket that sells everything from laptops to socks. It often runs out of buffalo milk mozzarella though :-(

    How can people live in a place where even to buy a carton of milk is a major undertaking in logistics? (unlike my neighbours I don't quite drink enough milk to get it delivered each day).

  72. Your numbers are way off base... by brunes69 · · Score: 2, Interesting
    ... and reflect an old wives tale based on 70's and 80's era estimates of populaiton growth.

    The fact of the matter is that in modern times nearly every country in the entire first world has sub-replacement population growth. Combine that with the recent paradigm shift in population growth in countries like China which previously had a major influence, and the probablye future advancement of third world countries, and you don't see anywhere near as dramatic an increase as what you say.

    Until a few years ago, the United Nations and other institutions preparing population forecasts assumed that fertility would increase to replacement level and that subreplacement fertility was only a transitory phenomenon. This assumption is supported by the argument of homeostasis as discussed in Chapter 11 . In this view, fertility levels are not seen as the sum of individual behavior, but as one aspect of the evolution of a system in which individual behavior is a function of the status of the system (see Vishnevsky, 1991). Under such a systems approach the assumption of replacement fertility in the long run seems a defendable possibility. Therefore, we assumed a TFR between 2.1 and 2.3 in 2030-2035 as the high-fertility assumption in the five industrialized regions.

    It is difficult, however, to find many researchers who support this view. Too much evidence points toward low fertility. The return to replacement fertility has been criticized as an assumed magnetic force without empirical support (Westoff, 1991). Many significant arguments support an assumption of further declining fertility levels. They range from the weakening of the family in terms of both declining marriage rates and high divorce rates, to the increasing independence and career orientation of women, and to a value change toward materialism and consumerism.

    Read this for more info, specifically this graph show what the trend will more likely be like in the future.

  73. Personal Flying Cars, Hydrogen fuel, not soon. by Vandil+X · · Score: 2, Insightful

    There's a reason why we don't have personal flying vehicles: there are just way too many underqualified people, including myself.

    Granted, there would need to be training, etc, like with driving schools, but personal flight would single handedly start the "random house crash" epidemic.

    Not to mention the potential terrorism uses of flying cars by malcontents.

    Hydrogen fuel (or any oil-substitute means of vehicle-powering energy) won't happen anytime soon because OPEC has too heavy of an influence on many of the world's governments, including the United States.

    Flying cars and alternative fuels have already been invented, it's just the society or government isn't ready/able to adopt them.

    --
    Up, Up, Down, Down, Left, Right, Left, Right, B, A, START
  74. The future by salesgeek · · Score: 2, Funny

    Due to the terrorism threat, travel for all non-corporate purposes using vehicles powered by flamable substances has been prohibited. Instead, we expect you to watch your television like a good lemming -er- citizen.

    Please call the Ministry of Love if you have any questions.

    --
    -- $G
  75. Driverless cabs? Been there, done that. by bencvt · · Score: 3, Informative

    Apparently whoever researched the article didn't do too thorough a job. The "driverless cabs" idea has been around for decades, and a full-scale implementation has been in use since 1972 (!) at West Virginia University. Check out the WVU Personal Rapid Transit (PRT).

  76. Horseback by ChaoticCoyote · · Score: 2, Interesting

    I'm brushing up on my horseback-riding skills. While they're certainly not a perfect solution, horse have a certain charm and simplicity. Plus, they don't need fossil fuels, and they do produce something that would keep my methane-powered generator going... ;)

    An impractical solution for many locales, horses are still an option to consider if your live in the right place.

    Why does everyone have to rush around so much? Does it really matter if I'm in London by 2PM as opposed to 4PM? Must we bounce around like mad blips in a vdieo game? Give me a quieter, more evenly-paced life, less frantic and more thoughtful...

  77. Boom propogation by Analogy+Man · · Score: 2, Informative
    I worked at Boeing until 1995. There are lots of things you can do to "soften" the boom (make the N-Wave less abrupt), but physics dictates there will be an over-pressure followed by under pressure. Think of the column of air as a structure supporting the airplane (~500,000lbs). For a subsonic airplane that structure can be very broad and spread out to the sides and in front of the airplane...so the 500,000 lbs of pressure is spread out over a VERY large area. So you don't sense or feel the over pressure. Now when going supersonically that column of air holding up the airplane is swept back behind it. Or from the ground perspective, the airplane is cantilevered on MILES forward of the "arm" of air holding it up. Now that column of air has to support both the weight of the airplane (500,000 lbs) plus a huge moment. The general form of this wave is an "N". The boom passing over a house has two parts, the over pressure of the front side followed by the under pressure (approximately the length of the vehicle) shortly after. It really rocks the house of the over pressure is on the backside when the under pressure gets to the front.

    Additional challenges arise from atmospheric effects (e.g. the wave propogating above the airplane bouncing off the upper atmosphere), boom focusing (as an vehicle turns, the inside of the turn gets a more focused boom. And all this trouble is for Mach 1.7 to 2.4!

    The additional problem for hypersonic flight is that the world just isn't big enough for it to be practical. The most efficient segment is at the high altitude at high speed, but by the time you get there, you have to come down again. If there Earth was more like Jupiter in size you could cut some real time out of a trip and benefit from the high speed cruise segment.

    --
    When the people fear their government, there is tyranny; when the government fears the people, there is liberty.
  78. Re:Peak Oil by fucksl4shd0t · · Score: 2, Insightful

    You did a fine job of addressing item (2). Thanks for spelling out the issues in your thoughtful post.

    No, thank you. :) I'm actually surprised by this post, because when I wrote it I thought people would read it and say "Oh, here's just another nut screaming about oil". Turns out this is the fastest I've ever seen one of my posts modded up to +5 Anything.

    But it seriously frustrates me how many people are willing to admit that oil is a finite resource but aren't willing to admit that finite means we'll run out eventually. The thing about the peak oil that I had never considered, though, is that the economic problems associated with using too much oil and depending on it too much happen long before we run out, and in fact we may never run out of oil. We'll be bankrupt long before then, and maybe civilization will collapse. ;) (Civilization collapsing is the worst-case scenario, therefore the most unlikely, but the scenario we should be targetting with our solutions)

    --
    Like what I said? You might like my music
  79. Peak Oil: Awareness Crisis by handy_vandal · · Score: 2, Insightful

    ... it seriously frustrates me how many people are willing to admit that oil is a finite resource but aren't willing to admit that finite means we'll run out eventually.

    I suspect that large numbers of people -- a majority -- understand perfectly well that oil is finite, and that we're rapidly consuming the ready reserves, and that crisis awaits us.

    The sense that "people aren't willing to admit our situation" is an illusion. How is anyone to know what The Public thinks? Why, through the Mass Media, of course.

    If the news media (and governments) elevated our energy crisis to the stature, of, say, the Apollo program, then we'd realize that a great many people really do understand the situation. Hell, maybe we'd even take action, while there's still time ....

    -kgj

    --
    -kgj
  80. Different Licensing for Car Drivers by tarsi210 · · Score: 4, Interesting

    I'd like to see something that I've thought about for a long time -- different licenses for different roads.

    Here's the concept: You have one general driver's license that gets you anywhere, basically, on standard roads. But a new driver's license that allows you onto a type of super-super-highway to be built across the USA. This highway would be several lanes wide for ease and safety, and the speed limit would be high -- say, 150mph. The minimum would be at least 85 or 90mph.

    The idea being here that if I am a driver with a good record, I can take a high-speed driving course and if I pass and install some standard, high-speed accessories in my car (3 or 4-point harnesses, etc), I am allowed to drive on the super-super highway and make a cross-country trip in very little time.

    The fact is, there's plenty of morons who should never go over the speedlimit due to the fact that they can't even use a turn signal, let alone drive correctly. But there are plenty of safe, alert, attentive drivers who would benefit from being able to run their well-designed fast cars on a highway suited to their needs.

    Plus, that way I wouldn't feel bad about kicking it up on a back highway because the day is gorgeous and 60mph is just too slow. :)

  81. Superficial Sensational Fantasies by polyp2000 · · Score: 3, Insightful

    Anyone who thinks that a scramjet that travels at Mach 7 is going to form the basis of a future commercial airline travel is seriously deluded! Face up to the reality there are only 2 uses that this thing is realistically going to be used for and that is for Weapons/Military and maybe as a space propulsion mechanism.

    How many years was concorde in service ? Came into service during the sixties (i think) and no-one but either the very lucky or the very rich ever got to enjoy the privelege of travelling over the speed of sound.

    Its just going to be too damn expensive to run this thing as commercial / enterprise. Concorde has recently gone out of service , only a few were ever made and never succeeded. Commercial airline travel has taken a backwards step with the demise of concorde. So I wouldnt get too excited about this causing a revoltion in global travel for a very very long time.

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    Electronic Music Made Using Linux http://soundcloud.com/polyp
  82. Re:Global Underground Maglev Subway by Derek+Mason · · Score: 2, Interesting
    This is an idea I've been thinking of myself for some time. But don't think that the energy requirements aren't huge - nanotechnology notwithstanding, there is still a huge amount of material that has to be broken up and moved. And where would it all be put - into space?

    The same network could be used for product delivery, mail, etc... It's a well-known (and hopefully true!) statistic that half of the world's GDP is taken up with inefficient transportation and associated industries (e.g. oil, shipping, cars, airlines) so a global underground subway could save a vast amount of resources and energy.

  83. Doesn't anyone read Heinlein any more? by kent_eh · · Score: 2, Funny

    All mass transit will be high speed conveyer belts!

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    "I can't complain, but sometimes still do..." Joe Walsh
  84. Re:what about EKRANOPLANS? by rcw-work · · Score: 2, Informative
    Ekranoplans are surface effect craft or "Wing In Ground".

    Pilots usually refer to "surface effect" as "ground effect". While a wing is within half a wingspan of a surface (such as the ground or water) it can produce much more lift with less induced drag.

    The only problem is that ground and water aren't exactly flat. While a ground effect craft can temporarily climb above an obstacle, this requires a lot of pilot skill. In addition, ocean rogue waves can be upwards of twice the height of surrounding swells and can appear and disappear in seconds (they're waves of constructive interference). With this in mind, a ground-effect craft would need to be very large (at least 747 large) to fly high enough to be safe. The noise from such a large vehicle operating so closely to the ground would limit such a craft to oversea routes.

    In my opinion, we could find limited use for a ground-effect craft if we had to, but we wouldn't like it.

  85. Jeebus by CKW · · Score: 2, Informative

    Does anyone actually realize that the "5000 mph
    test flight" was accelerated to 5000 mph using a
    rocket, and that the scramjet only ran for 10
    seconds?

    They do *not* have anything close to a bird that
    takes off under it's own power, climbs and
    accelerates to mach 5, then accelerates some more
    using a scramjet for a non-negligible amount of
    time.

  86. two and a half words: by LordMyren · · Score: 3, Funny

    vincent black-shadow

  87. On an actual offtopic note by cgenman · · Score: 2, Insightful

    How is the wheelman offtopic to a discussion on alternative transportation? As the entire line was hit with the offtopic stick, it's obvious that one of Slashdot's editors is to blame. But why? The question at hand was

    Are we likely to see similar advances in other forms of transport?

    Right? If Segway isn't offtopic, and it isn't, why would a portable, low-speed, tiny 20 mph vehicle be offtopic? Much like the Segway claimed to be, this could actually be the perfect vehicle for short jaunts to the store or visiting friends... the kind of short-range trips that the car is overkill but for which people refuse to walk. Why would a discussion about new forms of transportation discussing the cost benefits of 2 stroke engines vs 4 stroke engines in small vehicles be offtopic?

    I'm not saying you have to mod us back up. I'm just asking, WTF were you thinking? Dear Slashdot editor, seriously, what were you thinking? Justify yourself.

    Do editors get meta-moded?

  88. Um - no flying cars here please by Java+Ape · · Score: 2, Insightful
    There's a number of posts regarding the requirements for operating future transportation, which raise the unavoidable truth that our quest for faster, lighter, more nible is at an impasse. We are limited not by our cars/planes/hoverboards but by our own skill and mental accuity.

    I suspect many of us at slashdot are not possessed of fighter-pilot reflexes coupled with the attention span of a Tibetan monk. In fact, several studies have shown that a high percentage of intellectually-inclined people have a very limited ability to focus their attention on mundane tasks like driving. High GRE scores and advanced degress may be inversely correlated with driving abilty.

    For my part, I am well-educated and working as a senior-level geek. My abilty to control a car is quite good, perhaps better than average. However, I am easily distracted, borderline ADD, and have had several accidents (none serious) due essentially to daydreaming/not paying sufficient attention. Fine, mea culpa. However, I strongly suspect that many of my fellow nerds, in an honest evaluation, would be found guilty of similar traits.

    So, I'll pass on flying cars and hypersonic velocity in favor of moderate speeds and air-bags!

  89. I'm skeptical... by nothingtodo · · Score: 2, Insightful

    There's all kinds of new possibilities, but I really doubt anything new will transform society. People love their cars too much to use anything else. Maybe we'll get to flying cars like the Jetsons, but I say well over 25 years from now. I'd say the general populace could probably operate a flying car provided they pass all standard training and tests that a fixed wing pilot goes though including the checkride. Things might have to change if many thousands of flying cars were in use. I've always read about things like riding bikes, bike lanes on some roads, communities small enough to walk to the store, light passenger rail and all that, but notice there's no widespread use of such, at least in the US. People are just too lazy to bother with using anything but a car to get anywhere. Ours is a car culture and changing that will not be easy. Ive a small motorscooter and I find it great for going places within a few miles of the house. Cheap, easy on gas, and being up on two wheels is great fun. Most people would not be interested in that however.

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    -- After all is said and done, more is said than done.
  90. Re:End of Oil - FUD by anvilmark · · Score: 2, Insightful

    Unfortunately, while Hubbert was right about a peak, he was wrong in all the ways that matter.

    The major problem with these dire predictions is that they can't take into account revolutionary changes in technology/lifestyles. They also don't take into account that known reservoirs may refill from yet-undiscovered sources.

    Back in the late 1880 horses were the main form of transportation. If anyone extrapolated the growth of, say, New York City for the next 50 years they would conclude that horse feed and horse crap would be a huge problem by 1930!

    Yes, oil is a finite resource. What is often overlooked is that there are billions of barrels in forms/reservoirs that are not economical to extract at current prices and with the current techniques. As the price rises it will become economical to develop these resources and the price will stablilize.

    My personal prediction is that we will never run out. At some point renewable energy will become cost competitive with petroleum (getting close even now) and we will stop using it for energy. Thereafter petroleum will probably be used as feedstock for chemicals/lubricants but will eventually be replaced by bio-synthetic products.

    Tin-foil hats are fashionable in certain circles - if you haven't already "married the idea" of catastrophic oil depletion check out the facts here.

  91. Empower the people by Syberghost · · Score: 2, Funny

    It's funny when people who insist that the PC is great because it puts the power to control one's computing destiny into one's own hands, instead of the old model of centralized computing, also insist on mass transportation, instead of owning private cars that put one's travel destiny into one's own hands.

  92. Vacuum Maglev! and arcologies! by JANYAtty. · · Score: 2, Interesting

    I think the future of travel (50 years of more from now) is replacing long distance travel with underground tunnels that are in a vacuum and have mag lev trains running at speeds over 1000 miles per hour. Eventually I think we'll have a network that will stradle the globe! Very expensive to build but once its ready its very efficient! The other solution will be Arcologies. a building big enough to house a small city!

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    I dont do meaning of life questions.
  93. Re: about EKRANOPLANS; there's possibilities . . by vortexau · · Score: 2, Interesting

    I've long supported THIS very concept:
    About: the Caspian Sea Monster
    Much development remains with LARGER Sizes, Leading Tandem Monoplane configurations, and Sidewall Hovercraft Surface manoevering;- aspects being possibilities in solving various problems.

    Enclosed Fan Propulsion can solve high-power noise problems, and be used to augment swift-climb requirements!
    .

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    (David Bowman, EVA near HUGE Monolithic Win-PC in orbit around Jupiter) "My God - its full of Malware!"