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Elon Musk Unveils 1.14-Mile Boring Company Tunnel (cnbc.com)

Last night, Elon Musk unveiled his vision of a high-speed tunnel system he believes could ease congestion and revolutionize how millions of commuters get around cities. CNBC reports: Musk, who founded the Boring Co. two years ago after complaining that traffic in Los Angeles was driving him "nuts," says the demonstration tunnel cost approximately $10 million to complete. Engineers and workers have been boring the 1.14-mile-long tunnel underneath one of the main streets in Hawthorne, California. One end of the tunnel starts in a parking lot owned by Musk's Space X. The other end of the demonstration tunnel is in a neighborhood about a mile away in Hawthorne.

Tuesday afternoon, the Boring Co. gave reporters demonstration rides through the tunnel in modified Tesla Model X SUVs, going between 40 and 50 miles per hour. Engineers have attached deployable alignment wheels to the two front wheels of the Model X. Those alignment wheels stick out to the side of the main wheels and act as a bumper along the track walls inside the tunnel, keeping the Model X on course and preventing the vehicle from running into the side walls of the tunnel. While the Boring Co.'s first tunnel may be complete, it is far from being finished. The surfaces are bumpy and have yet to be smoothed out. As a result, the demonstration ride, for now, is rough and passengers in the Model X definitely feel the alignment wheels bumping into the track walls to keep the SUV on course.

186 comments

  1. Congratulations on a solid re-invention by Anonymous Coward · · Score: 0

    Congratulations Elon, you have invented the Obahn.

    https://en.wikipedia.org/wiki/O-Bahn_Busway

    1. Re:Congratulations on a solid re-invention by Joce640k · · Score: 1

      Congratulations Elon, you have invented the Obahn.

      You meant "implemented", or maybe "made practical".

      --
      No sig today...
    2. Re:Congratulations on a solid re-invention by Anonymous Coward · · Score: 0

      "made practical".

      I've seen the video ad read the story, no way has what's been implemented so far made this practical.

  2. Re:musk by Anonymous Coward · · Score: 0

    You're a moron.

    Good luck.

  3. affordability = scalability by bigpat · · Score: 1

    The thing that Elon Musk does is drive down cost to enable scalability. This isn't about a bumpy prototype tunnel, this is about looking at the tradespace and finding the combination of attributes that may enable this architecture to be affordable when it is scaled.

    1. Re:affordability = scalability by pseudofrog · · Score: 1

      So, ultimately, maybe like some sort of subterranean train?

    2. Re:affordability = scalability by Anonymous Coward · · Score: 5, Interesting

      He only drives down costs by cutting corners. His current tunnel lacks

      If and when Elon constructs an actual transit tunnel he would have to follow NFPA 130 (TBC is currently advertising a position for a life and safety officer knowledgeable in NFPA 130 on their website) This code details a number of required safety features. The tunnel must have automated fire detection and sprinkler systems, the ventilation system must be sized large enough to quickly extract smoke. You need to have an emergency walkway of a minimum width and clear of obstructions. You need to have egress points at regular intervals either to another tunnel or to the surface. These egress points need to be shielded by fire rated doors. You need to have emergency lighting. You need to have standpipes for firefighters to connect their hoses too. Etc. etc.

      Oh and this tunnel was neither dug faster nor cheaper than any other tunnel.

      For a better comparison Super Excavators (the previous owners of Godot) used the exact same machine to build a 1,640 ft sewer overflow tunnel for $12.4 million, or scaling up $38 million/mile, right up there with Elon's $40 million cost, and the contract had profit factored into it as well and was done in a more challenging geology and included digging deeper access shafts that what Elon did. So I guess the Proof of Concept is that Elon can spend more money digging a tunnel using the exact same machine at a shallower depth and easier ground than an existing tunneling contractor.

      .

    3. Re:affordability = scalability by Anonymous Coward · · Score: 4, Interesting

      Unlike Spacex and Tesla, it has been clear from the earliest press releases that this tunnel business doesn't really have much to do with scientific innovation or invention. All Elon Musk realized is that he might be able to make money off of something which has been a bit of an open secret for the last ten years at least - that urban taxpayers were paying literally billions of dollars for short subway expansions (the Second Avenue Subway in New York being the biggest example), when there is absolutely no reason it couldn't be done for orders of magnitude less money. It's a combination of insane over-engineering (why the hell would you spend a half a billion dollars to climate control three subway stations in a subway system with over 200 un-climate-controlled stations, for example) and massive corruption. The tunnel boring machine used to dig the Second Avenue Subway required 5 to 10 people to operate. The city paid 50 to 60 people. There are pictures of them all standing around. Musk probably thinks he can write some simple software and do it with one dude. And he's right. Musks ten million dollar one mile tunnel is basically a giant "ha ha suckers" to the people (me included) who financed a 4 billion dollar one mile tunnel in Manhattan. Some city is going to give him a contract, and he's going to deliver, because it should never have cost 4 billion dollars to put a train in a tunnel to begin with.

    4. Re:affordability = scalability by Anonymous Coward · · Score: 0

      A sub-surface train-way?

    5. Re:affordability = scalability by b0s0z0ku · · Score: 5, Interesting

      A/C was the least of it -- why did the (two-track) 2nd Ave Subway stations need to have a full concourse level rather than just a narrow "bridge" to cross the tracks?

      However, there were problems other than corruption. NYC is built on bedrock, which is a bitch to dig through. And it's a much older city than L.A., so there are poorly-market utility lines and other infrastructure underground -- half the battle was locating this stuff and moving it, as well as avoiding damaging the foundations of buildings.

      As far as the tunnel-boring machine, was this thing running 24/7? There are 168 hours in a week -- with 40 hour weeks and vacation time, 5 crews sound about right. Add some support staff for repairs and the like, and you have your 50 people.

    6. Re:affordability = scalability by inking · · Score: 1, Insightful

      Yeah, we get it. The costs will be driven down by the tax payer. Just like with SpaceX, the GigaFactory and all his other projects.

    7. Re:affordability = scalability by aaarrrgggh · · Score: 2

      Sadly, I am pretty underwhelmed so far. Once I saw the NFPA130 job posting I realized they now understand how badly they screwed up. What they “accomplished” as an unsafe tunnel that is not exceptional in any way.

      It is like they approached the problem one-dimensionally.

    8. Re:affordability = scalability by Anonymous Coward · · Score: 0

      It is like they approached the problem one-dimensionally.

      Well musk is a low intelligence moron with a huge ego.

    9. Re: affordability = scalability by Anonymous Coward · · Score: 0

      Wrong. Competition drives down cost.

    10. Re:affordability = scalability by Jeremi · · Score: 1

      The costs will be driven down by the tax payer. Just like with SpaceX, the GigaFactory and all his other projects.

      Not to mention the interstate highway system. Guess who paid for that?

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    11. Re:affordability = scalability by Anonymous Coward · · Score: 0

      Elon Musk is looking towards the future and willing to sink some serious cash into his ideas. Electric cars, large scale batteries, re-usable rocket components, commercial orbital delivery services, and the boring technology described in the article. Looking at these various efforts none of them can be expected to turn an actual profits. Everyone of these efforts is aimed at the future. As battery technology advances he is well positioned to implement the new technologies into widespread use. He is well positioned to implement any advances in space related technologies. Even if all his ventures were to fail at least he tried looking ahead and creating products and services instead of just talking about them.

    12. Re:affordability = scalability by Joce640k · · Score: 1

      So, ultimately, maybe like some sort of subterranean train?

      Except you can drive the carriage all the way to your house after you arrive at your station.

      --
      No sig today...
    13. Re:affordability = scalability by Anonymous Coward · · Score: 0

      Tunnels that are tens of meters underground dont scale, for the simple reason you cant make express direct tunnels to everywhere, eventually you have to have intersections. The same happens with roads, you could make freeways direct without interruptions but that would only be useful if for both ends, everyone in between couldnt use the freeway.

      Elons tunnel system is complete stupidity, because now you waste time being lowered, and raised. The real problem is the fact everyone is whizzing around back and forth all over the place. Its insanity that people travel such large distances to work to begin with and these distances continue to increase. Many jobs are a complete waste of time and the resources to move people to perform them is stupid.

      Its insane in this modern age that more people dont work from home, tahts a simple start to really solving traffic.

    14. Re:affordability = scalability by Anonymous Coward · · Score: 0

      Actually all of musks business rely on gov tax payer funds. Just look at his NASA contracts, they arent cheap, and its those contracts that are financing his other rocket research. LA TIMES has a few articles on his tax payer examples.

    15. Re:affordability = scalability by muffen · · Score: 4, Interesting

      History will remember Musk as one of our generation's greatest inventors. And yet we're doing everything we can to shoot him down: https://www.entrepreneur.com/a...

    16. Re:affordability = scalability by Anonymous Coward · · Score: 0

      History will remember Musk as one of our generation's biggest morons.

      Fixed that for you.

    17. Re:affordability = scalability by Anonymous Coward · · Score: 0

      Oh and this tunnel was neither dug faster nor cheaper than any other tunnel.

      Well, they haven't made any changes to this machine, so why would it be faster or cheaper? The purpose of this machine is to gather information on what they need to improve to make the boring process faster and more efficient.

      It took a long time for SpaceX to build rockets that could reliably land again, why does anyone expect The Boring Co to make instant improvements to boring machines?

      I guess time will tell if he can achieve what the gains he thinks he can with this one.

    18. Re:affordability = scalability by Anonymous Coward · · Score: 0

      What did fElon "invent" beside stock fraud on Twitter?

    19. Re:affordability = scalability by Anonymous Coward · · Score: 0

      The tax payers, obviously. I mean, they are PUBLIC roads and all. Unlike SpaceX, the GigaFactory and all of his other projects.

    20. Re:affordability = scalability by ElizabethGreene · · Score: 1

      TFS indicates the cost of the mile long tunnel at ~10 million dollars, and TBCP (The Boring Company Presentation) used the same number and noted that this was their first tunnel.

      Unless there is some funny math there, a serious possibility, the noobs did it for ~1/4th the cost of the pros on their first try.

    21. Re:affordability = scalability by bigpat · · Score: 2

      Oh and this tunnel was neither dug faster nor cheaper than any other tunnel.

      For a better comparison Super Excavators (the previous owners of Godot) used the exact same machine to build a 1,640 ft sewer overflow tunnel for $12.4 million, or scaling up $38 million/mile, right up there with Elon's $40 million cost, and the contract had profit factored into it as well and was done in a more challenging geology and included digging deeper access shafts that what Elon did. So I guess the Proof of Concept is that Elon can spend more money digging a tunnel using the exact same machine at a shallower depth and easier ground than an existing tunneling contractor.

      .

      Yes, I am going to hold Musk to the numbers if he wants cities to allow these sorts of tunnel networks. But a one off prototype tunnel is going to have higher costs than if you just keep digging a network of tunnels. And the comparison you have is with a sewer tunnel. No he has not innovated in tunnel building, but this is a transportation systems problem not merely a tunnel building problem

      The basic principle of cost reduction is sound... we need to use smaller tunnels that are cheaper to build like this for our transportation systems. Otherwise you are going to continue to have demand outpacing transportation capacity because our infrastructure is too expensively designed.

      I am Boston based and I can tell you we spent decades and tens of billions on the Big Dig. Extrapolate that costs and then think how maybe it would have been better to spend a billion or two on multiple smaller tunnels compared to the tens of billions spent on the big multi-lane tunnels.

      And there has been another decades old debate about spending about ten billion to connect our North and South commuter rail networks with a mile long tunnel. Again bigger tunnels with multiple rail lines and stations and higher spot capacity than car tunnels... but still the cost has meant that it hasn't been approved in the decades that it has been on the drawing board.

      If cities, especially the ones that haven't got an established subway network... which is most US cities. IF these cities can organically build out these sorts of tunnel systems from the urban core outward then it will fill in the needed gap between the high capacity subway systems and the lower density cities and areas around cities which face congestion issues, but not enough proven demand or money to fund big ticket mass transit upgrades.

    22. Re:affordability = scalability by arth1 · · Score: 3

      History will remember Musk as one of our generation's greatest inventors.

      What, exactly, has he invented?

    23. Re:affordability = scalability by arth1 · · Score: 1

      It took a long time for SpaceX to build rockets that could reliably land again,

      Why the past tense? What's the criteria here for deciding that "reliably" has been achieved?

    24. Re:affordability = scalability by Anonymous Coward · · Score: 0

      That $10 million number is not the true cost of the tunnel. It omits permitting, land acquisition, digging the access shafts, etc. All in they spent $40 million dollars on this tunnel in total.

    25. Re:affordability = scalability by Anonymous Coward · · Score: 0

      Except this prototype tunnel is literally no different than any other ordinary tunnel and it still cost over $2 million more per mile than the previous users of the exact same machine. On top of that it meets none of the safety requirements necessary for a publicly accessible tunnel.

    26. Re:affordability = scalability by lgw · · Score: 1

      Well, obviously the roads, but what else has Rome ever done for us.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    27. Re:affordability = scalability by p.g.king · · Score: 1

      And the comparison you have is with a sewer tunnel

      And your point is? Is a sewer tunnel somehow more or less complex than what musk has shown so far? Why are the costs not comparable based on what's been dug so far?

    28. Re:affordability = scalability by im_thatoneguy · · Score: 1

      , or scaling up $38 million/mile, right up there with Elon's $40 million cost,

      From TFA

      Musk said it cost about $10 million to build the 1.14-mile demonstration tunnel.

      So he came in 75% cheaper. $40m includes the R&D.

    29. Re:affordability = scalability by im_thatoneguy · · Score: 1

      For a better comparison Super Excavators (the previous owners of Godot) used the exact same machine to build a 1,640 ft sewer overflow tunnel for $12.4 million, or scaling up $38 million/mile

      Musk said it cost about $10 million to build the 1.14-mile demonstration tunnel.

      So you are saying their very first ever test tunnel came in at 25% of the price of the established competitor?

    30. Re:affordability = scalability by Anonymous Coward · · Score: 0

      $40m includes the R&D.

      So does the $38million retard. It was in no way cheaper.

    31. Re:affordability = scalability by Anonymous Coward · · Score: 0

      No because that $10 million dollar figure is not the true cost of the tunnel. The true cost was $40 million. The comparable $38 million was the total cost as well including permitting, environmental review, land acquisition, etc.

    32. Re:affordability = scalability by hackwrench · · Score: 1

      Using a rocket on at least two payloads successfully, which I understand has been done.

    33. Re:affordability = scalability by Anonymous Coward · · Score: 0

      Yes, exactly, that's an amazing idea. It will drive down cost to enable scalability!

    34. Re:affordability = scalability by Anonymous Coward · · Score: 0

      The question is, why would you want to lug it around with you under ground.

    35. Re:affordability = scalability by aaarrrgggh · · Score: 1

      I actually think Musk is brilliant-- just not what we know of the tunnel concept. I would be surprised if there weren't big parts that we had no idea about though, as the waffling on seemingly import items like "skates" does not make sense. I think he is trying to figure out a vision he can actually deliver today for perception, but the master plan is very much in flux.

      The part I am less confident about is if maybe this was just a "hey, I can get a 12' TBM cheap... would be fun to play with!" thing. Adding in the whole 12^2/17^2 math is what makes me think of it as a 1-dimensional solution to a 4-dimension problem. I would rather see him running an elliptical TBM (angled cutter head) or something else crazy that might make a bigger difference in the equation.

    36. Re:affordability = scalability by squiggleslash · · Score: 1

      History might, but only in the same way Edison is celebrated as the same. And Musk deserves less credit than Edison.

      There are a multitude of problems with this "tunnel", from those already mentioned to the fact ingress and egress seems to be the bigger issue. A train solves those problems, and actually "trains through cheaply built tunnels" has been a thing for coming up to a century and a half, but Musk insists this thing needs to be for cars.

      And that's the real problem, because that wasn't demoed yesterday. The easy bit was demoed. The hard bit everyone keeps saying Musk has no solution to is still out of reach.

      --
      You are not alone. This is not normal. None of this is normal.
    37. Re:affordability = scalability by squiggleslash · · Score: 1

      Both include the R&D. Also using a used TBM probably helped cut costs somewhat...

      It sounds as if Musk's tunnel ultimately cost more than the one it's being compared to.

      --
      You are not alone. This is not normal. None of this is normal.
    38. Re:affordability = scalability by arth1 · · Score: 1

      Using a rocket on at least two payloads successfully, which I understand has been done.

      I don't think that is enough to earn the "reliably" description.

      "Come eat at my fugu restaurant! The last two customers didn't die!"

  4. Re:Keep it coming by wolfheart111 · · Score: 1

    Its the source of his incentive...

    --
    [($)]
  5. Re:Also Reinvented the electric car. by wolfheart111 · · Score: 0

    Reinvented Rocketry, Reinvented Solar storage... yes thats how science works.

    --
    [($)]
  6. Re: Keep it coming by Anonymous Coward · · Score: 0

    Elon wants that on every newscast. But how does he get the footage to all these rural stations without a satellite connection? If you knew how much bandwidth that requires you might laugh. Just going from western CA to Eastern is expensive

  7. If you're building a tunnel... by b0s0z0ku · · Score: 4, Interesting

    If you're building a tunnel, laying a set of rails and an electric rail is a relatively small cost compared to the tunnel itself. The vehicles should run on rails -- metal-to-metal friction is lower than rubber to concrete, and they provide a way of powering vehicles without dealing with toxic batteries.

    I'm not suggesting building a conventional subway, but rather some form of personal rapid transit. Designed correctly, the vehicles could "switch" themselves to different tracks without needing the complex switching equipment used by trains and subways today.

    1. Re:If you're building a tunnel... by olsmeister · · Score: 1

      I have a better idea.

    2. Re:If you're building a tunnel... by 110010001000 · · Score: 4, Insightful

      Why "personal rapid transit"? That doesn't make any sense. You will never get the throughput to get enough people where they need to go if they are in their own personal box. And how would you "switch" a thousand different personal transit cars without "complex switching equipment" (never mind the fact that subways don't use complex switching equipment). The entire idea is completely stupid.

    3. Re:If you're building a tunnel... by Anonymous Coward · · Score: 1

      metal-to-metal friction is lower than rubber to concrete

      uh... you know that high rubber to concrete friction is a good thing, no? Cars don't move on roads "in spite" of the friction, but thanks to it.

    4. Re:If you're building a tunnel... by Anonymous Coward · · Score: 0

      Roads aren’t made of concrete retard. They are made is asphalt moron.

    5. Re:If you're building a tunnel... by Anonymous Coward · · Score: 0

      Obviously you haven't driven very much if you don't think there are concrete roads, kitten.

    6. Re:If you're building a tunnel... by chrysrobyn · · Score: 1

      metal-to-metal friction is lower than rubber to concrete

      But isn't that the problem too? Rubber is good at acceleration. Metal wheels aren't. For sufficiently long tunnels where the metal wheels can get up to speed and just cruise, I think you're right. But for the first few "proof of concept" tunnels that are supposed to be pretty small, only a mile or two, I don't think metal wheels give a significant friction advantage compared to the "wow" factor of being able to accelerate and brake faster.

      For a 10 mile tunnel, I'd hope a car could park on a skate in some sort of loading zone, have the skate go through the tunnel at higher speeds and with lower friction and then decelerate into an unloading zone where cars can exit their skates.

    7. Re:If you're building a tunnel... by Hognoxious · · Score: 1

      Like those plastic tubs at the airport scanner?

      Only bigger, of course.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    8. Re:If you're building a tunnel... by Anonymous Coward · · Score: 0

      No way. Projects that bring more private vehicles into congested cities have always succeeded at reducing congestion in the past. ;)

    9. Re:If you're building a tunnel... by TheCastro1689 · · Score: 1

      The idea is to have entry and exit ramps that merge with the transportation rail. That way the personal vehicle doesn't disrupt the rest of the people moving along. Then the personal pod/car/etc can easily leave or enter the "station" with minimum delay.

  8. Did something change? by sentiblue · · Score: 1

    If nothing changed... last time I heard, he was sued and the tunnel constructions was abandoned. How is it possible that he's unveiling it now?

    1. Re: Did something change? by Anonymous Coward · · Score: 1

      He closed the tunnel to dodger stadium. This is the Hawthorne tunnel

    2. Re: Did something change? by Anonymous Coward · · Score: 0

      Because heâ(TM)s a very smart man

    3. Re:Did something change? by Actually,+I+do+RTFA · · Score: 1

      This is the technical test tunnel. What was shut down was the tunnel that was trying to test it with members of the public.

      --
      Your ad here. Ask me how!
    4. Re:Did something change? by Anonymous Coward · · Score: 0

      He wasn’t sued. He tried to cut corners and didn’t not get the proper permits.

    5. Re:Did something change? by ElizabethGreene · · Score: 1, Flamebait

      The canceled project was the Sepulveda Boulevard tunnel. The backstory on that was that LA gave them an preliminary exemption from a (possible multi-year) environmental impact study. The fine folks of the Brentwood Residents Coalition took offense to that and sued.

      That's the name to remember when you are baking on the 405. 'Brentwood Residents Coalition'

    6. Re: Did something change? by Anonymous Coward · · Score: 3, Interesting

      Because he isn't a very smart man

      Fixed that for you. Here’s what a real tunnel engineer has to say about this.

      So really rather disappointed in the presentation and Elon still seems fairly ignorant on some pretty major obstacles when it comes to tunneling.

      First thing I want to point out is that when Elon was touting the fact that tunnels are immune to to the effects of weather he completely ignored the threat of flooding for tunnels which is a serious issue. Look at NYC tunnels in the aftermath of Sandy for proof of that, and many of those tunnels had fairly extensive drainage systems and still flooded.

      Also a major issue with his plan to reuse "dirt" from onsite to create concrete liner segments is that not all aggregate material is suitable for use in concrete. A major limiting factor is that the aggregate needs to contain very little if any silica to avoid reacting with the alkali cement and forming a expansive chemical gel. You also can't have any pyrite present in the aggregate for the same reason you want to avoid silica, and you want avoid expansive shale as well. Then there is the fact that a lot of material is simply lacking the UCS strength to be a suitable aggregate for concrete, clays, mica, mudstone, etc are all to weak for use and fairly common.

      On to the TBM itself, I'm assuming all comparisons where against Godot in terms of things such as power output. Elon talked about increasing the power of the machine by 3x, we know from the published spec sheet that Godot which is a Lovat tbm built in 2005 has 1400 hp, 3x that gets you to 4200 hp, for comparison Bertha which recently finished tunneling a road tunnel in Seatle boasted 25,000 hp. More to the point though is that increasing cutterhead speed isn't a universal solution. In soft ground with a closed face machine, like what Elon has encountered so far, you want a faster cutting head as it is primarily being used for soil mixing and you don't need very much torque. However, in hard rock or in an open face machine you typically want a lower speed cutterhead with higher torque so you can shift and clear the muck. And in mixed face conditions you want a slower cutterhead speed down to reduce shock loading on your cutting tools as you constantly go between soft and hard ground. The Robbins Company has published white papers on how they've found that slowing cutterhead rotation dramatically increase cutting tool life, decreases downtime for maintenance, and increases overall productivity.

      Also Linestorm appears to have considerably larger openings in its face shield which works great for soft ground with no rock in it. However, the gamble you take when you run large openings like that is that you can ingest oversized boulders which will either clog or damage your screw conveyor which is you'll only see contractors run that sort of wide open face when they are absolutely certain they won't encounter any boulders or rock features along the way.

      Lastly, Elon talked about how average subway speeds aren't that fast but I feel like he is massively underestimating the throughput capacity of subway systems, For example NYC's Times Square subway station sees an average of 179,000 passengers per day. Assuming TBC deploys their 16 person pods they've proposed and everyone of those pods is filled to capacity, that represents more than 11,000 pod stops in a location per day, or a pod using the station every 7 seconds, 24 hours a day, that's assuming you have the exact same demand at 11:30PM as you do at 5:00PM on the way home from work

    7. Re: Did something change? by Anonymous Coward · · Score: 0

      I guess Musk steamrolling a poor neighborhood in Hawthorne that also didnâ(TM)t want him digging under their homes but lacked the political juice to stop him is your idea of making the world a better place.

    8. Re: Did something change? by K.+S.+Kyosuke · · Score: 1

      Lastly, Elon talked about how average subway speeds aren't that fast but I feel like he is massively underestimating the throughput capacity of subway systems, For example NYC's Times Square subway station sees an average of 179,000 passengers per day. Assuming TBC deploys their 16 person pods they've proposed and everyone of those pods is filled to capacity, that represents more than 11,000 pod stops in a location per day, or a pod using the station every 7 seconds, 24 hours a day, that's assuming you have the exact same demand at 11:30PM as you do at 5:00PM on the way home from work

      I presume that the point isn't to replace the Times Square subway station with one tiny entry point into just one tunnel? That would seem to completely defeat the logic of making a larger number of smaller tunnels.

      --
      Ezekiel 23:20
    9. Re: Did something change? by Anonymous Coward · · Score: 0

      I remember the car companies laughing at the first Tesla car.

      I remember rocket companies saying they would always be cheaper than Tesla.

      I will listen to tunnel engineers, but I don't trust to know the future either.

      E.C.P.

    10. Re: Did something change? by Anonymous Coward · · Score: 0

      I remember the car companies laughing at the first Tesla car.

      They are still laughing all the way to the bank while Tesla still fails to made a profit.

      I remember rocket companies saying they would always be cheaper than Tesla.

      They are laughing too. Space ex is all smoke any mirrors with zero substance.

  9. Re:Love those things by wolfheart111 · · Score: 1

    Man i always wanted a handcar, didnt u ever? :)

    --
    [($)]
  10. Re:Love those things by b0s0z0ku · · Score: 1

    LOL. I heard they're less fun than they look -- most of the old handcars had plain bearings, not ball or roller bearings, so pumping them was a sweaty job.

  11. Boring Tunnel California Bullet Train by Anonymous Coward · · Score: 0

    At least it isn't 11 years behind schedule.

  12. Yikes by AndyKron · · Score: 1

    It sounds like a drug running tunnel.

  13. He won't have to follow fire code in California by raymorris · · Score: 3, Funny

    A transit system based on tunnels won't have to worry about fire code in California. The fire code will be long forgotten centuries before he finishes the environmental impact studies. He'll need to make sure it's waterproof, because California will be underwater before they approve something that could effect the habitat of a pair of Palo Alto earthworms.

  14. Comment removed by account_deleted · · Score: 4, Informative

    Comment removed based on user account deletion

  15. Rail a lot riskier and more exacting by SuperKendall · · Score: 2, Interesting

    The vehicles should run on rails -- metal-to-metal friction is lower than rubber to concrete, and they provide a way of powering vehicles without dealing with toxic batteries.

    LOL at "toxic batteries" - you aren't going to be eating them and the material inside get recycled.

    As for rails - the reason not to use them is that laying them down is a lot more exacting. It adds a lot of needless delay to building out the tunnels, a lot of maintenance in the tunnels to make sure they stay aligned exactly. Not using tracks means maintenance is mostly moved outside the tunnels, meaning fewer closures or delays (I have seen a LOT of issues with subway rails over the years, and I don't even live in a place with a subway system!).

    I am also not sure the cost will be relatively small compared to tunnel cost by the time they have advanced the tunneling machines - even V1 of the tunnel was just $10 million for 1.3 miles. They are talking about making something like 10-30 tunnels between various locations, that is a hell of a lot of track.

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
    1. Re:Rail a lot riskier and more exacting by Anonymous Coward · · Score: 0

      The smoke from the batteries on fire is at least somewhat toxic - esp. in an enclosed space. These "personal" cars won't have the level of monitoring and inspection that city subways have nor were they designed for safety in this specific environment.

    2. Re:Rail a lot riskier and more exacting by SuperKendall · · Score: 1

      These "personal" cars won't have the level of monitoring and inspection that city subways have

      Holy shit have you ever BEEN on an SF or NYC subway, and also in a Tesla owners car??

      At least in Musk's tunnels a jacked up car just rolls in neutral off to a side channel instead of blocking every car behind it for an entire morning.

      --
      "There is more worth loving than we have strength to love." - Brian Jay Stanley
  16. It still isn't safe by Anonymous Coward · · Score: 0

    A single bore tunnel is an unacceptable human safety hazard. If anything catches on fire, you're going to die in there. It's marginally tolerable for mine workers, but the mines are still built to much higher safety standards than this, with escape rooms bored in. There isn't a corner left uncut in this effort to mine into the taxpayers' pockets.

  17. If traffic bothers you get a motorcycle by Anonymous Coward · · Score: 0

    What traffic? Ride a motorcycle.

  18. That's a nice cheap line, just isn't true. by Brannon · · Score: 3, Insightful

    Rocket launches are dramatically cheaper with SpaceX then before SpaceX--and the US now nolonger is reliant on Russia for ferrying astronauts to and from the ISS. Any gov investment has long since paid off there.

    1. Re: That's a nice cheap line, just isn't true. by Anonymous Coward · · Score: 0

      Than, ass monkey. Not then

    2. Re: That's a nice cheap line, just isn't true. by Anonymous Coward · · Score: 0

      Not really. SpaceX costs look lower because they don't do any work to integrate the payload to the rocket. That is separately contacted, unlike the other launch providers. The best part is that that musk will use that to push the blame for failures.

    3. Re:That's a nice cheap line, just isn't true. by Anonymous Coward · · Score: 0

      Rocket launches are dramatically cheaper with SpaceX then before SpaceX

      All the more inexplicable how Musk failed so miserably with Tesla.
      I mean Tesla loses even against "domestic" competition like the Chevrolet Bolt which beat the snot out of Tesla Model 3 by 20% price-wise.
      The Japanese/Korean are just going to ass rape Tesla like they did with the other domestics.

    4. Re:That's a nice cheap line, just isn't true. by Anonymous Coward · · Score: 0

      Only SOME rocket launches are cheaper you forgot to factor that these are subsidized by USAF launches that are double.

    5. Re:That's a nice cheap line, just isn't true. by NoImNotNineVolt · · Score: 1

      and the US now nolonger is reliant on Russia for ferrying astronauts to and from the ISS

      I'm as big a SpaceX fan as the next guy, but Crew Dragon hasn't even had an uncrewed launch yet (scheduled for 2019 January 17). We're still very much reliant on foreign providers, for now.

      --
      Chuuch. Preach. Tabernacle.
    6. Re:That's a nice cheap line, just isn't true. by Anonymous Coward · · Score: 0

      Most of this time delay is being extra-safe and cautious. If we REALLY REALLY needed it, we could likely have SpaceX send astronauts up to ISS in 6 months.

    7. Re:That's a nice cheap line, just isn't true. by Anonymous Coward · · Score: 0

      The Soyuz vehicle has a proven history of reliability, and recently even showed that it can, at least sometimes, save its human crew. Would you trust your life to SpaceX? I know which ship I'm taking when I win the lottery. Let me know when the private sector catches up, though.

    8. Re: That's a nice cheap line, just isn't true. by Anonymous Coward · · Score: 0

      are you sure, that is a time comparison so then seems more appropriate

    9. Re:That's a nice cheap line, just isn't true. by Anonymous Coward · · Score: 0

      A sign of our times. Giving praise and blame of expectant future results as if they were already done.

      Elon Musk the hero. Trump the villain. Same process. Judging not on what is, but on what might be colored by expectations.

  19. You also predicted Tesla would fail... by Brannon · · Score: 1, Troll

    so it's kinda hard to take you seriously.

  20. Underwhelming by 93+Escort+Wagon · · Score: 1

    Musk keeps redefining what "finished" means in terms of this tunnel, and people keep lapping it up. He seems to have inherited a portion of Steve Jobs' reality distortion field.

    I'm sure if and when it actually has sleds running in it circa 2020-2021, people will swear that was the timetable all along.

    --
    #DeleteChrome
  21. Re:musk by Anonymous Coward · · Score: 0

    Creimer went to a Shake Shack and only had a strawberry milkshake.

  22. Rail engineer commentary by trawg · · Score: 4, Informative

    A rail engineer made a few interesting comments comparing this tunnel (which I guess admittedly is more of a proof of concept?) to an actual train. A few numbers extrapolated out of the press release; it doesn't really compare favourably:

    To put it another way, Musk's shoddily-built tunnel will have to carry over EIGHT VEHICLES PER SECOND to match the capacity of an underground railway. No chance.

    Just build some fucking trains, America!

    1. Re:Rail engineer commentary by timeOday · · Score: 1

      If you get to drive away in your own car when you hop off the tracks, I think a road is a more fair comparison. That said, the metal guide wheels, I dunno it seems sort of like a carnival ride. I would have though self-driving would be easy in these controlled conditions and electric power would be great for not filling the tunnel with exhaust.

    2. Re:Rail engineer commentary by K.+S.+Kyosuke · · Score: 1

      Has the rail engineer seen highway traffic?

      --
      Ezekiel 23:20
    3. Re:Rail engineer commentary by Anonymous Coward · · Score: 0

      While they're not wrong, the point is to scale up with a lot more tunnels, rather than maxing capacity of a single tunnel. Hence the need to drive down the cost of tunneling.

    4. Re:Rail engineer commentary by Anonymous Coward · · Score: 0

      Hence the need to drive down the cost of tunneling.

      Which is not possible. Musk’s tunnel cost $40 million per mile. The last company useing the literally the exact same machine bored a tunnel for $38 million per mile.

    5. Re:Rail engineer commentary by trawg · · Score: 1

      Which is not possible. Muskâ(TM)s tunnel cost $40 million per mile. The last company useing the literally the exact same machine bored a tunnel for $38 million per mile.

      Interesting.

      At the price of tunnel digging it just seems like madness to do it and then not try to maximise the throughput of it with mass transit.

      My city has built several big cross-city tunnels in the last decade and they seem great now, but in a couple years the traffic in them will be bad - one of them has been bottlenecked in peakhour because one end simply doesn't have the capacity to redistribute the traffic.

    6. Re:Rail engineer commentary by Anonymous Coward · · Score: 0

      To put it another way, Musk's shoddily-built tunnel will have to carry over EIGHT VEHICLES PER SECOND to match the capacity of an underground railway. No chance.

      That engineer is totally allowed to not use Musk's shoddy but existing tunnels, and instead can go ride his high capacity non-existent underground railway.

      Sounds to me like "no chance" is the exact odds of a non-existent railway, but I'm not an engineer like this guy, so he probably knows more math than I do to calculate that.

    7. Re:Rail engineer commentary by Anonymous Coward · · Score: 0

      8 vehicles per second but that lift at the end of the vehicle definitely can't run at that speed. It also doesn't scale up, there's no way you can fit a large van or truck in there.

    8. Re:Rail engineer commentary by Tom · · Score: 2

      That ignores the fact that railways don't get you everywhere, but cars do.

      I moved cities two years ago, and was practically forced to change my commute from train to car. My previous location of both house and workplace enabled me to commute by train easily and I enjoyed it. Read books on the train, half an hour, it was very nice. New location, train is still nearby, but workplace isn't near any train station. It would take me 90 minutes to go by one train, then another train, then a bus. Even in the worst traffic, I'm door-to-door in those 90 minutes, and on typical days in about half that.

      But if I could enter a tunnel at the edge of the city, and exit it somewhere near my workplace to drive the last few miles - sign me up.

      That is the idea. To combine the advantages of personal cars and public underground.

      EIGHT VEHICLES PER SECOND

      That means moving at 120 km/h with half a metre between cars. Technically possible, but challenging (autonomous driving, of course, not manual). But if you go double-track, that's more than a car's length between cars. Not much unlike a crowded highway, minus all the lane changes and all that. Possible.

      --
      Assorted stuff I do sometimes: Lemuria.org
    9. Re:Rail engineer commentary by thegarbz · · Score: 1

      Just build some fucking trains, America!

      Or maybe you could not compare some tiny proof of concept to a standard built out railway system. The rail engineer is completely dense in his comparison.

    10. Re:Rail engineer commentary by Anonymous Coward · · Score: 0

      I'd be surprised if a single highway lane had 8 cars per second in it. Really it shouldn't be more than 1 car every 2 seconds to ensure a safe stopping distance. I realise that in practice many drivers don't leave a 2 second gap between themselves and the car that they are following, but still 8 cars per second would mean the cars are insanely close, and would be inviting a horrific pileup as soon as someone hits the brakes.

    11. Re:Rail engineer commentary by K.+S.+Kyosuke · · Score: 1

      True, but that's why usually you don't build a single lane, presumably. Likewise I strongly doubt that there will be only a single tunnel available for a connection between any two points, especially when the point is supposed to be low cost per km.

      --
      Ezekiel 23:20
    12. Re:Rail engineer commentary by Anonymous Coward · · Score: 0

      Trains don't make sense when population density is low.

    13. Re:Rail engineer commentary by Anonymous Coward · · Score: 0

      What concept was proved, though? Tunnels already exist. Guideways already exist. Elevators already exist. We already knew that you can save a ton of money by not going through any environmental or safety review process, and by not trying to meet regulatory standards. So far as I can tell, the only concept proved here is that Elon Musk's fanbois will defend his work no matter how stupid it actually is.

    14. Re: Rail engineer commentary by Anonymous Coward · · Score: 0

      So digging tunnels is proof of concepts now. Interesting.

    15. Re: Rail engineer commentary by Anonymous Coward · · Score: 0

      And his proof of concept with 0 safety features still cost more per mile to build. LUL.

    16. Re:Rail engineer commentary by squiggleslash · · Score: 1

      You know a proof of concept is so called because it proves a concept, right?

      The concept being proven here is what's being criticized, not the tunnel (which, ironically, doesn't actually prove the concept to begin with, anyone can build a tunnel, just ask former inmates of Stalag Luft III.) Musk is proposing a complete system including cars joining and exiting the system. Those are the bits in contention. Musk hasn't demoed or even described anything capable of achieving the high rates of ingress/egress needed to even reach the ballpark achieved by, say, the Glasgow Subway.

      --
      You are not alone. This is not normal. None of this is normal.
    17. Re:Rail engineer commentary by thegarbz · · Score: 1

      You know a proof of concept is so called because it proves a concept, right?

      Yep. Unfortunately the engineer is criticizing a pilot which doesn't exist, not the concept. Or did you actually think Musk's grand scheme was to have Model Xs drive down his tunnel, in which case you've clearly been paying zero attention to any of Musk's projects and the process they go through.

  23. Re:musk by ShanghaiBill · · Score: 4, Funny

    Seriously dude. Nobody cares about your tunnel. And in California? It'll never get done. NEVER.

    If there is one thing that Californians care about, it is traffic. It is the #1 topic of conversation, since we don't talk about the weather. What would we say? "Well, it looks like another nice sunny day with clear blue skies, just like every other day for the past six months."

  24. Re: He won't have to follow fire code in Californi by Anonymous Coward · · Score: 0

    Affect, you dumbfuck. Not effect.

  25. Just when you thought congestion was bad enough... by Ichijo · · Score: 1

    ...now we can be stuck in traffic underground! Brilliant!

    --
    Any sufficiently unpopular but cohesive argument is indistinguishable from trolling.
  26. so one more lane, solves the traffic problem? by goombah99 · · Score: 1

    How does this solve traffic. Adding one lane?

    --
    Some drink at the fountain of knowledge. Others just gargle.
    1. Re:so one more lane, solves the traffic problem? by aybiss · · Score: 0

      A lane with no intersections or traffic lights that goes directly from one point to another without zigzagging? I'd say that would help quite a lot.

      --
      It's OK Bender, there's no such thing as 2.
    2. Re:so one more lane, solves the traffic problem? by LynnwoodRooster · · Score: 1, Insightful

      For those who live at that one destination point? Absolutely. For everyone else? Not so much. Yes, I know the plan is to have thousands of cars zipping from station to station underground - but then you'll get gridlock down underground as well as above ground.

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    3. Re:so one more lane, solves the traffic problem? by Anonymous Coward · · Score: 0

      You're a fucking moron lol. You have no idea what you're even talking about, lest of all what anyone else here is. Dumbass.

    4. Re:so one more lane, solves the traffic problem? by Anonymous Coward · · Score: 0

      How do you get gridlock in a tunnel with no intersections?

    5. Re:so one more lane, solves the traffic problem? by Joce640k · · Score: 1

      In the elevators that lower you down to the tunnel.

      --
      No sig today...
    6. Re:so one more lane, solves the traffic problem? by rjr162 · · Score: 1

      The elevator stations. And the tunnels are straight shots. Watch the interview with him. Basically this allows you to drive an electric car potentially of any make/model at 150 MPH and then take an "off ramp" to exit.

      See the bottle neck there? The elevators are slow, the "off ramps" will get congested and backed up, then the main flow will as well. (Or if a car breaks down). Hopefully there aren't many if any bends or that 150mph car may not see the backup in time.

      Sure this may help with extremely long straight stretches for a while, until it becomes popular that use increases. It has the same issues as current roadways. And when repairs need to be made, then what? You'll have a ton of people backed up in a single line in a tunnel, blocking off ramps etc because no one knows how to use two lanes and zipper to not make the backup even worse.

    7. Re:so one more lane, solves the traffic problem? by Anonymous Coward · · Score: 0

      You mean like a bypass?

    8. Re: so one more lane, solves the traffic problem? by Anonymous Coward · · Score: 0

      Those are called trains. We have those. Some even operate underground in tunnels.

    9. Re:so one more lane, solves the traffic problem? by Hognoxious · · Score: 1

      Unless it's a closed loop it has intersections.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    10. Re:so one more lane, solves the traffic problem? by LynnwoodRooster · · Score: 2

      Ever ridden a subway at rush-hour? One person holds up a train, the entire system stumbles for 45 seconds - and now you have twice the people at a platform because they missed their connection. And it cascades from there, as people try to push on to the next train, delaying it. Not to mention that Musk's tunnel has cars coming in and out of the system...

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    11. Re:so one more lane, solves the traffic problem? by LynnwoodRooster · · Score: 1

      Just remember, though - these tunnels do not have flood pumps, fire suppression, air-flow systems, emergency walking egress, etc. So a backup, with a big accident in it, and we're going to see mass fatalities. Now, Musk can add all that legally-required stuff - but then the cost is just as much as the subways currently under construction in LA, so... Musk?

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    12. Re:so one more lane, solves the traffic problem? by goombah99 · · Score: 1

      freeways don't have intersections or traffic lights either. And unless LA is underground is going to look like swiss cheese and you have an unlimited budget these tunnels are not going to be that plentiful. Just like above ground freeways. SO it's basically one more lane versus multiple existing 12 lane freeways.

      --
      Some drink at the fountain of knowledge. Others just gargle.
    13. Re:so one more lane, solves the traffic problem? by dj245 · · Score: 1

      Ever ridden a subway at rush-hour? One person holds up a train, the entire system stumbles for 45 seconds - and now you have twice the people at a platform because they missed their connection. And it cascades from there, as people try to push on to the next train, delaying it. Not to mention that Musk's tunnel has cars coming in and out of the system...

      That sounds like a scheduling problem to me. I can assure you that people hold up the doors on the Japanese rail and subway lines, sometimes for 20-30 seconds, and yet the trains always run on time. If you aren't incorporating predictable human nature into your train schedule, you're doing it wrong.

      --
      Even those who arrange and design shrubberies are under considerable economic stress at this period in history.
    14. Re:so one more lane, solves the traffic problem? by Anonymous Coward · · Score: 0

      "I can assure you that people hold up the doors on the Japanese rail and subway lines, sometimes for 20-30 seconds, and yet the trains always run on time."

      Won't the trains then be 20 to 30 seconds late.

    15. Re:so one more lane, solves the traffic problem? by LynnwoodRooster · · Score: 1

      Those trains run every 2-3 minutes; Musk's tunnel will need cars leaving every 7 to 10 seconds to support the same volume of people. A 120 second spacing can handle a few seconds of delay; a 10 second spacing cannot.

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    16. Re:so one more lane, solves the traffic problem? by Anonymous Coward · · Score: 0

      Ohh, don't do that ... please do not encourage the Moron's to pro-create. The last thing we need is more of them wandering about going 'Ahhh' at all the shiny stuff.

  27. Nobody walks in LA by goombah99 · · Score: 1

    You mean like get our of my car and walk? Dude, only a nobody walks in LA

    --
    Some drink at the fountain of knowledge. Others just gargle.
    1. Re:Nobody walks in LA by garcia · · Score: 1

      I worked for a company based in Santa Monica. Even the employees who worked less than a mile away from the office would still drive and complain about the traffic; it was literally insane.

      As for the article:

      The key part of this isn't moving massive amounts of people; it's about moving their cars with them so they can cover great distances in a shorter period of time and still be able to go "the last mile" that transit doesn't cover.

  28. lots of trucks by bigtreeman · · Score: 1

    it's not about how fast you bore, it's about how fast you can take away the dirt.
    that's just a fecking lot of trucks

    --
    Go well
  29. Brisbane Australia by Anonymous Coward · · Score: 0

    Living here in Brisbane, we've got a network of new tunnels, but we don't use rails, we just drive through them...

    https://en.wikipedia.org/wiki/TransApex

    I would have thought the main danger to building tunnels in California would be the earthquakes, but I haven't heard anyone mention it yet.
    Personally, I would not want to be in a tunnel during an earthquake.

  30. Need to think BIGGER! by Anonymous Coward · · Score: 0

    Musk claims he can do 17 miles in only 3 years so he should then be able to do all 2,790 miles of I-80 in 474.7 years! Domestic flights will finally be a thing of the past.

  31. Speed ratings on tires by Quake1v1 · · Score: 1

    If they are going to propel cars at 150 mph, they better make damn sure that the folks that use this tunnel have tires that are rated for that speed.

  32. Because they predated them... by Anonymous Coward · · Score: 0

    By 50-100 years. Hell you're lucky they had bearings at all, given that the earliest ones were mostly produced by bona fide blacksmiths or iron works foundries back in the 1800s.

    That said, a retrofitted handcar using modern bearings, improved handbrake systems, and other features should be more than capable of handling such tracks, could have impact bumpers installed to reduce injury in the case of handcars hitting each other, and will some work on newer designs, could have electrically controlled wheels and lifts in place to help switch tracks without proper junctions available.

  33. Re:musk by Anonymous Coward · · Score: 0

    Jesus, will you guys get a room already?

  34. Incorrect figures by SuperKendall · · Score: 1

    Which is not possible. Muskâ(TM)s tunnel cost $40 million per mile.

    In the presentation he said it was $10 million for 1.3 miles.

    Also stated - recently completed subway expansions in NYC were about $2 BILLION per mile.

    This is just V1 of Musk's tunneler, they have other iterations to go that are cheaper and faster.

    In the end the goal *is* multiple tunnels for throughput. As Musk said, once you go 3D you can do as many tunnels as you need.

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
    1. Re:Incorrect figures by Anonymous Coward · · Score: 0

      Musks current tunnels fails to meet any safety requirements and is essentially a death trap. He basically broke the law taking the general public into it.

      This is just V1 of Musk's tunneler, they have other iterations to go that are cheaper and faster.

      No they won’t. Here’s what a real tunneling engineer had to say about it.

      So as a civil engineer with experience working in tunnel construction I've been following Elon's Boring Co. for a while now but honestly I keep getting frustrated when I read these media releases of his because it really shows how little he seems to understand about tunneling or what some of the big challenges are.

      A number of people on this thread have brought up Elon asking tunneling execs about whether TBMs are thermally or electrically limited. The honest answer is neither, and the true limiting factors are often project specific. Modern TBMs often have enough power to literally tear themselves apart if not carefully monitored. The text book example of this would be Seattle's Bertha which boasted 50,000 HP and proceeded to crack its main ring bearing when it struck a buried steel pipe, setting off hundreds of millions in repair costs. And as far as power goes, large and mid size TBMs are often connected right to the electric grid with their own dedicated substations.

      A big limiting factor of most TBMs is cutting tool life. In extreme hardrock conditions cutting discs often last less than 24 hours before needing replacement. The Follo line in Oslo required 24,000 cutter changes over 22KM of tunnels with rock strengths up to 300 MPa or 43,500psi. A single standard 19in disc cutter has a tungsten carbide blade and the whole assembly weighs about 425 pounds. Musk has mentioned he wants to find a way to automate the replacement process but has not yet released any details I'm aware of on how to do this. Its also worth noting that when a TBM is going through soft ground the space behind the cutting head needs to be kept sealed and pressurized in order to avoid collapse of the tunnel face. Replacing cutting tools in soft ground is a serious headache where the only way to do it without collapsing the face is to pump in high pressure air to force muck away from the cutterhead than swap tools out through a series of airlocks and workers operating under hyperbaric conditions to make any needed repairs. Its such a pain that tunnelers will try and avoid this by creating planned safe zones along the tunnel route to do repairs. They will drill from the surface down to the tunnel depth and pump in large amounts of concrete grout to artificially create an area of hard ground where you can safely depressurize the face of the TBM.

      Another big risk and cost factor in tunnel is dealing with water. A large number of TBM rescues occur when a machine gets flooded out due to high water inflows. Machines expected expected to tunnel through high water pressure environments need to have a complex system of seals and dewatering pumps. The TBM currently digging the Rondout Bypass tunnel under the Hudson River north of NY City can seal against 30 bar (435 psi) of hydrostatic pressure and has a 2,500 gallon/minute dewatering capacity. On top of this the plan is to use probe drills inside the tbm to drill holes about 100 ft in front of the tbm and than pump high pressure grout through the holes to fill all the cracks and crevices in the rock face to limit the amount of water that can flow into the tunnel. (When the original section of tunnel passed under the Hudson using the drill and blast method crews had to pump out 4 million gallons of water a day even under hyperbaric conditions.)

      Lastly on this thread and elsewhere there seems to be the idea that tunneling companies are this big psuedo cartel raking in massive profits and ripe for disruption like Musk did to the aerospace industry with SpaceX. That's really not the case though, construction is a notoriously competitive and small margin industry. Much of the small diam

    2. Re:Incorrect figures by bdcrazy · · Score: 1

      The problem is, digging isn't exactly rocket surgery. It has its majority issues though. I don't believe the hard part is the digging though.

      Making people happy you're digging beneath their feet is hard. Not hitting any existing underground utilities, a downright nightmare. The main problem, as always with public works infrastructure, is bureaucracy and nimbyism. The secondary problem is everyone with a modicum of power wants their cut.

      How do you get people to agree to something where a handful get rewarded handsomely, some groups get a small net benefit, some groups get a small net deficit, most don't get anything, and usually a small handful get screwed.

      --
      Tonights forecast: Dark. Continued dark throughout most of the evening, with some widely-scattered light towards morning
    3. Re:Incorrect figures by SuperKendall · · Score: 1

      How far down do you think utilities go anyway? Musk is tunneling way below electrical/sewage/etc.

      In the presentation he mentioned that when they finished the tunnel and drilled through the other side the person in the house next door never even noticed.

      The main problem, as always with public works infrastructure, is bureaucracy and nimbyism. The secondary problem is everyone with a modicum of power wants their cut.

      Now that is for-real, except that when the benefits of many small tunnels become apparent as does the lack of impact on life (no construction compared to road work or rail construction) cities will be clearing the path for tunnels to be built.

      --
      "There is more worth loving than we have strength to love." - Brian Jay Stanley
  35. If you want to see an outstanding achievement by grungeman · · Score: 3, Insightful

    ...look at the Gotthard base tunnel, made by not so boring people who really know how to build tunnels. Trains can go 200km/h in that tunnel btw.. Price was roughly 200 million US$ per mile (not 1 billion as Musk claimed).

    https://en.wikipedia.org/wiki/...

    --

    Signature deleted by lameness filter.
    1. Re:If you want to see an outstanding achievement by Anonymous Coward · · Score: 1

      If you want to see an outstanding achievement, look at the Shinkansen train in Japan. 60 years in operation, millions of passengers, zero lethal accidents, super-convenient, super-fast, and look, ma, no pointless tunnels.

    2. Re:If you want to see an outstanding achievement by Kartu · · Score: 1

      Define "pointless" tunnels, as Shinkansen surely does use tunnels.
      https://en.wikipedia.org/wiki/...

    3. Re: If you want to see an outstanding achievement by Anonymous Coward · · Score: 0

      How do you think it gets to Hokkaido, pontoons?

    4. Re:If you want to see an outstanding achievement by Anonymous Coward · · Score: 0

      The 200 meter ones that go to nowhere that fElon digs to try to justify siphoning off taxes.

    5. Re: If you want to see an outstanding achievement by Anonymous Coward · · Score: 0

      Certainly not via the Muskerloop.

    6. Re:If you want to see an outstanding achievement by Anonymous Coward · · Score: 0

      Define "pointless" tunnels, as Shinkansen surely does use tunnels.
      https://en.wikipedia.org/wiki/...

      These tunnels in question actually have a point.

    7. Re:If you want to see an outstanding achievement by Tony+Isaac · · Score: 1

      The Gotthard Base Tunnel is outstanding. Musk's tunnel isn't remarkable for being outstanding, but for being cheaply built. Even at $200 million per mile, the Gotthard Base Tunnel cost 20 times more than Musk's tunnel. This price difference could make a huge difference for cities wanting to build subways or road tunnels.

    8. Re:If you want to see an outstanding achievement by Anonymous Coward · · Score: 0

      The gotthard base tunnel has, drainage, smoke ventilation, fire suppression, emergency egress, etc. Add all that Required stuff into musks tunnel and it will be the same price. Most likely it will cost musk more because he’s an incompetent moron. And by the way, it was cut in tuffer conditions at a substantially faster rate musk joke of a tunnel.

  36. So cute when a fraudster "rediscovers" old tech by Anonymous Coward · · Score: 0

    wraps it in stupid and sells it to the millenials for their tax money.

    Go for it, fElon, your cocksuckers deserve to be shafted.

  37. Musk ruined Grimes for me by Anonymous Coward · · Score: 0

    Although Grime's new song is great.

  38. Re:Also Reinvented the electric car. by Joce640k · · Score: 2

    Working implementations of other people's ideas is still value.

    --
    No sig today...
  39. Re: He won't have to follow fire code in Californi by Joce640k · · Score: 1

    Maybe you meant "alter".

    --
    No sig today...
  40. How is this better than a subway? by misnohmer · · Score: 1

    A conventional subway requires the same tunneling as Musk's tunnel. A conventional subway carries a lot more people than individual cars. Entering and leaving the subway will require vehicle elevators, also less efficient than people elevators. Can anyone explain how sending electric cars with an additional set of wheels underground to run through the tunnel is going to be more efficient than just another subway? Is it solely the fact that you can can build one way paths (tunnels in one direction only, you have to return via surface streets, or wait until the end of the day when the tunnel direction is reversed)? If the latter, how is it better than a single lane highway with alternating direction?

    1. Re:How is this better than a subway? by Anonymous Coward · · Score: 0

      This solves so many problems:
      1) People. You don't have to mingle with other people, which is ofcourse superior to actually have to mingle.
      2) Cold/Heat/Rain/Snow. You do not have to get out into either. Given that your workplace has a dedicated garage spot for you, you can drive from garage to garage never getting too cold, too warm or wet.
      3) The holy grail. No need to walk, ever, anywhere.

  41. I wish I was "failing" like Tesla by steveha · · Score: 3, Insightful

    Musk failed so miserably with Tesla.
    I mean Tesla loses even against "domestic" competition like the Chevrolet Bolt which beat the snot out of Tesla Model 3 by 20% price-wise.

    LOL. The Chevy Bolt sold 3,949 cars in the third quarter of 2018; at the same time, Tesla was making and selling more Model 3 cars per week than that. For the whole quarter Tesla sold 55,840 Model 3 cars. That's over 14 times the sales.

    The Model 3 costs more, but it's also a better car than the Bolt, and it appears that customers are willing to pay the premium.

    https://electrek.co/2018/10/03/chevy-bolt-ev-sales-slumping-us/

    In November 2018, the Tesla Model 3 was the 6th highest selling car on the market, period. The Model 3 outsold the Ford Fusion and the Nissan Sentra. It sold about double compared to Volkswagen Jetta and about triple compared to the Toyota Prius.

    https://cleantechnica.com/2018/12/08/tesla-model-3-completely-crushing-us-luxury-car-competition-10-cleantechnica-charts/

    In fairness, the above is with a $7,500 tax credit. That credit will be reducing soon and then will go away. But by then, Tesla should have their $35,000 model available to sell.

    Elon Musk had hoped to have the $35K car available by the end of 2018. That's not happening but it looks like it will happen in the first half of 2019.

    https://insideevs.com/base-35000-tesla-model-3-production-8-months/

    Another fun fact: the Honda Civic and the Honda Accord are two of the top five trade-ins of Model 3 customers.

    https://electrek.co/2018/08/01/tesla-model-3-top-5-trade-in-cars/

    I don't think the word "failure" is the right word to describe Tesla or the Model 3. I expected it to beat the stuffing out of the BMW 3-series and other luxury cars; I didn't expect it to be competitive with the Honda Civic or the Nissan Sentra.

    Also, for your prediction about Japanese car makers beating Tesla to come true, the Japanese car makers are going to need a guaranteed source of batteries. Tesla spent the big money to build their own battery factory, which at the same time gives them the lowest cost on batteries and a guaranteed supply of batteries. There will be millions of Tesla cars on the road before any other company can even begin to compete with them.

    --
    lf(1): it's like ls(1) but sorts filenames by extension, tersely
    1. Re:I wish I was "failing" like Tesla by Cytotoxic · · Score: 1

      Well, the Hyundai Kona is getting favorable comparisons to the Model 3, so it is about to come under big price pressure.

    2. Re:I wish I was "failing" like Tesla by steveha · · Score: 1

      According to Sandy Munro, the Model 3 has quality flaws he's not seen since Kia's of the 90's.
      Sandy Munro also slammed the Model 3 chassis as being "it's too heavy and it costs too much money", while praising the Chevy Bolt chassis as "a good example of a well done body".
      Suggesting insufficient Tesla hires with experience in finite element analysis.

      Sandy Munro later said he "had to eat crow" and called the Model 3 "a symphony of engineering".

      He said the Model 3 body is too heavy and too complicated. Elon Musk replied, on Twitter, that it definitely could be simpler but the extra weight was in service of safety. (The Model 3 is the safest car ever tested by the US government.)

      Model 3 cost cutting centerline "ipad" dashboard is universally reviled.

      Maybe everyone you know hates it, but I've read a bunch of reviews that say "after driving a Model 3, other cars start to feel overly cluttered."

      Model 3 gets fake leather, unlike the real deal in a Chevy Bolt.

      So buy a Bolt! No back orders on those, you can just walk in and find them sitting around at Chevy dealers. Just waiting for someone to buy them.

      Tesla has used real leather for their cars in the past, vegetarians and vegans would rather have the fake leather, and the fake leather seems to be fine. I saw a video where someone showed how he cleans his Model 3 white seats. When he was done cleaning they looked like new. (He just used unscented baby wipes and simply wiped down the seats. He put a strip of clear tape and when he was done you could see how much whiter and cleaner the rest of the seat was compared to the taped section.)

      Except CATL is actually the largest manufacturer of Lithium ion cells...not Panasonic.
      But you have other large players in the marketplace like BYD, LG...

      Not sure what your point is here. Tesla gets the entire output of Gigafactory 1, and they keep adding production lines to it. And they are now building additional Gigafactories. It will be difficult indeed for other car makers to buy batteries in the same quantities as Tesla gets them already, and Tesla is going to ramp up their production.

      BTW Steve, a self proclaimed Washington state resident, why are you posting at 0228 in the morning?

      It's touching that you are so worried about my health. I'm a "night owl" and I often stay up later than I should.

      If that was a veiled implication that I'm lying about where I live, I cordially invite you to get stuffed.

      --
      lf(1): it's like ls(1) but sorts filenames by extension, tersely
    3. Re:I wish I was "failing" like Tesla by Anonymous Coward · · Score: 0

      blah blah blah...

      I see steveha, that you did not attempt to address your pathetic attempt at deception that equated back order fulfillment of Tesla Model 3 to real time demand for the car...apology accepted...you do realize your apology carries your admission that you're a Musk cocksucker right?

      Sandy Munro later said he "had to eat crow" and called the Model 3 "a symphony of engineering".

      symphony of engineering courtesy of Nvidia and the electronics...the mechanicals are still 90's era Kia.

      He said the Model 3 body is too heavy and too complicated. Elon Musk replied, on Twitter, that it definitely could be simpler but the extra weight was in service of safety.

      Sandy Munro remarked that "because it's all redundant, all you're getting now is weight, you don't get strength, you're just getting weight".

      The Model 3 is the safest car ever tested by the US government.

      Citation?

      Maybe everyone you know hates it, but I've read a bunch of reviews that say "after driving a Model 3, other cars start to feel overly cluttered."

      Since when does universal distaste for a poorly design "ipad" dashboard gets assuaged because the poor design is a lonely "ipad"?

      vegetarians and vegans would rather have the fake leather

      Are you fucking serious?
      Like 5% of the population dictates your manufacturing decisions?
      Besides, why not have both options?
      Oh wait, it costs too much money.

      Not sure what your point is here. Tesla gets the entire output of Gigafactory 1, and they keep adding production lines to it. And they are now building additional Gigafactories

      The point is, Panasonic is not the biggest manufacturer?
      Besides, you think Honda is uncompetitive because Toyota is twice as big?

      I'm a "night owl" and I often stay up later than I should.

      You also get little sleep apparently.
      Go to sleep at 0300 then gets up to
      Posts 0616 in the morning.
      BTW, who the fuck posts at 0600 in the morning night owl or not.
      Posts 0742 in the morning the next day.
      Posts 0725 in the morning on the third day.
      You parent post was 1144 in the morning.

    4. Re:I wish I was "failing" like Tesla by steveha · · Score: 1

      I see steveha, that you did not attempt to address your pathetic attempt at deception

      Nope, no deception. What motive would I even have? Nobody cares what I say. I try to win people over with facts, but asserting my opinions is pointless because nobody cares.

      As for the rest, congratulations, you successfully demonstrated that sometimes I get up early and sometimes I stay up late. Well done!

      Merry Christmas, Happy New Year, and have a nice life.

      --
      lf(1): it's like ls(1) but sorts filenames by extension, tersely
    5. Re:I wish I was "failing" like Tesla by Anonymous Coward · · Score: 0

      Hey Steven, Merry Christmas to you and Elon, your gay sex lover!

    6. Re:I wish I was "failing" like Tesla by Anonymous Coward · · Score: 0

      The Model 3 is the safest car ever tested by the US government.

      Citation?

      http://lmgtfy.com/?q=tesla+model+3+safest+car+ever+tested

    7. Re:I wish I was "failing" like Tesla by Anonymous Coward · · Score: 0
  42. I like Tesla but ... by Anonymous Coward · · Score: 0

    No way should there be a Tesla-only tunnel in any city. Just like we don't have GM-only highways or Ford-only bridges.

    Furthermore, the Tesla-only charging stations, so long as they make customers pay for the electricity, should be opened up to other electric car brands as well. We don't have Toyota-only gas stations or Honda-only gas stations. Gas tank filler pipes were at one time long ago standardized; so too should electric car charging ports be standardized across brands.

    As for this tunnel "thing", I don't think I would want to be couped up in there with no foreseeable escape route in case of a fire.

  43. Let's see how it scales by DrXym · · Score: 1

    The tunnel is the least of the problems with this system. Trying to scale it to a size which would have any measurable impact on traffic would be the challenge. And if it did scale, imagine the queues of cars all waiting to be somehow transported under the surface by lifts or whatever. Where do these cars wait and for how long, and where? Cities could end up swapping one traffic management problem for another and potentially not even be the beneficiaries if it is run by a private company.

    1. Re:Let's see how it scales by Anonymous Coward · · Score: 0

      The tunnel is the least of the problems with this system. Trying to scale it to a size which would have any measurable impact on traffic would be the challenge. And if it did scale, imagine the queues of cars all waiting to be somehow transported under the surface by lifts or whatever. Where do these cars wait and for how long, and where? Cities could end up swapping one traffic management problem for another and potentially not even be the beneficiaries if it is run by a private company.

      If you keep asking Elon difficult questions he might go to Mars without us!

  44. road underground by sad_ · · Score: 1

    it's just an extra single lane road which is underground for the moment?

    --
    On a long enough timeline, the survival rate for everyone drops to zero.
  45. Re: musk by Anonymous Coward · · Score: 0

    Musk is a piece of shit that needs to be offed in the slowest, most painful and public way possible. He's lower in the food chain than a pedophile.

  46. is it just me or ... by Anonymous Coward · · Score: 0

    does it look like the tunnel is to narrow to ever move a car at 150MPH?

  47. Re:musk by Anonymous Coward · · Score: 0

    Wow!

    We've advanced technology to the point where we can make 1 mile long tunnels! The future is bright folks, this is an amazing breakthrough.

    Thank you Elon! I really, really mean that.

  48. Re:musk by Anonymous Coward · · Score: 0

    When I lived there near the coast I remember it being a bit foggy and cloudy in the morning daily, about 60 degrees, until the sun breaks through at around 11 AM when it burns off the fog. It hits about 70 at noon, and about 75 mostly sunny when the kids are out of school, dropping to about 65 in the evening. Repeat daily.

  49. Re:musk by pgmrdlm · · Score: 2

    If California's priority is traffic, then they have a serious moral problem. They have one of the largest populations of homeless(both working and not working) in the United States. That should be their priority.

    --
    Anonymous comments are as pathetic as the anonymous "sources" that contaminate gutless journalism from the New York Time
  50. Re:Also Reinvented the electric car. by Anonymous Coward · · Score: 0

    He's also about to reinvent Dead Nígger Storage. With this new technology we can expand the capacity for storing dead níggers into the hundreds of millions. In the near future will be releasing an ICO for our new DeadNíggerCoin to be listed on exchanges as NIG.

    Dead Nígger Storage Inc is a successful business founded in 1994 by Toluca Lake, Los Angeles resident Jimmie Dimmick, after a misunderstanding with two acquaintances from the local underworld. In an interview made in 2004 with Pulp Magazine, Dimmick stated that the idea for his business originally came from his dealings with a mysterious "Mr Wolfe" several years previously.

    Dead Nígger Storage Inc is publicly traded on the Nasdaq stock market under the symbol DEDNIG.

    Business Overview

    The business focuses on a simple service provision as the basis for their corporate offering, namely the creation of storage facilities specially built to store dead and/or decaying afro-americans. With offices in Alabama; Elko, Nevada; Georgia; Louisiana; Palmdale, California; and South Carolina, Dead Nígger Storage Inc now has more branches throughout the Confederate States of America than both KFC and Big Kahuna Burgers combined.

    Originally run from Jimmie and Bonnie Dimmick's garage, the business' growth rate within the first few months of operating forced them into a rethink. In 1998, the Dimmicks purchased Monster Joe's Truck and Tow in Downtown Los Angeles, which has remained their base of operations to this day.

    With the catchy friendly slogan of "Storing Dead Níggers is our business" Dead Nígger Storage Inc remains a market leader at the forefront of ethnic minority storage, despite the recent upsurge in the market for companies such as Jews on Ice and the Cracker Barrel.

    Very recently, Dead Nígger Storage Inc has expanded into a chain with several branches outside of the United States. Though each branch outside the USA are largely similar to their American counterparts, most customers note a handful of "little differences". For example, in America one can store a decapitated Nigerian. In the Paris branch, however, one stores un Nigirié guillotin. In general, dead níggers are still called dead níggers, but over there they're called les dead níggers and corpse sizes are measured differently because of the metric system.

    In 1999 Detroit became the largest Dead Nígger Storage facility in the western hemisphere.

    Traditional Methods of Storing Dead Níggers

    “You know what they preserve dead níggers with in Holland instead of synthetic petroleum based chemical preservatives? Mayonnaise.”
    ~ Vincent Vega on storing Dead Níggers

    Many individuals have struggled with the issue of dead nígger storage, including Jefferson Davis and John C. Calhoun who favoured the time-attested methodology of dry suspension, a technique that preserved by hanging them in carefully controlled environments for up to 21 days.

    Other techniques utilised include smoking, often over specially constructed firepits or pyres. Although this often provides a more pleasurable flavour and aroma, it often led to a complete burning of the subject.

    Pulverization is often utilised, either through the use of sticks, or in more extreme case through "dragging", a technique thought to include a pick-up truck. Another practice designed to aid tenderization is referred to as "curbstomping".

    Dead Nígger Storage in Popular Culture

    Dead Nígger Storage is subtly referenced in 14 separate Quentin Tarantino movies including Reservoir Dogs and the two Kill Bill films. The company also has numerous placements with Tarantino's latin lover Robert Rodriguez' movies, including The Adventures of Sharkboy and Lavagirl.

    English Murder Mystery Writer Agatha Christie, r

  51. Re:Also Reinvented the electric car. by Anonymous Coward · · Score: 0

    Mayonnaise? You're a monster.

  52. Re:musk by lgw · · Score: 1

    When I lived in Cali, no one talked about the weather because it was always too depressing. Always rainy and blah. And cold. And everything was brown and ugly, except for 6 weeks or so each year in spring. Silicon Valley is a nasty place, and I still don't get why anyone would want to be there if not dragged there for a job.

    --
    Socialism: a lie told by totalitarians and believed by fools.
  53. His post is correct but so is Musk by SuperKendall · · Score: 0

    Musks current tunnels fails to meet any safety requirements

    Bullshit fear mongering, source? Musk said the tunnel casings are rated for 4x the max load they need to handle (even considering earthquakes).

    Now on to the civil engineers letter:

    And as far as power goes, large and mid size TBMs are often connected right to the electric grid with their own dedicated substations.

    Which is stupid since you need to manage cables.

    A big limiting factor of most TBMs is cutting tool life. In extreme hardrock conditions cutting discs often last less than 24 hours before needing replacement.

    Yes Boring Company already manages this just fine.

    Its also worth noting that when a TBM is going through soft ground the space behind the cutting head needs to be kept sealed and pressurized in order to avoid collapse of the tunnel face.

    Tunnel in LA already proves they can handle this since it has a wide variety of soil conditions (including a lot of oil).

    Water issue: Not going to say it doesn't matter but is not a concern in quite a few cities, I'm sure they have plan for that also.

    One thing not covered in the letter is how much safer Musk's tunnels are since they are smaller in diameter than typical tunnels.

    Much of the small diameter utility tunnel work like what Musks suggests he'd expand into is done by small mom and pop companies in a highly fragmented market.

    Which is exactly why Musk can cut costs with much better scaling of expertise and equipment.

    The letter basically screams out that Boring Company will be a massive success.

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
    1. Re:His post is correct but so is Musk by Anonymous Coward · · Score: 0

      Bullshit fear mongering, source? Musk said the tunnel casings are rated for 4x the max load they need to handle (even considering earthquakes).

      Wow you are a massive retard.

      If and when Elon constructs an actual transit tunnel he would have to follow NFPA 130 (TBC is currently advertising a position for a life and safety officer knowledgeable in NFPA 130 on their website) This code details a number of required safety features. The tunnel must have automated fire detection and sprinkler systems, the ventilation system must be sized large enough to quickly extract smoke. You need to have an emergency walkway of a minimum width and clear of obstructions. You need to have egress points at regular intervals either to another tunnel or to the surface. These egress points need to be shielded by fire rated doors. You need to have emergency lighting. You need to have standpipes for firefighters to connect their hoses too. Etc. etc.

    2. Re:His post is correct but so is Musk by Anonymous Coward · · Score: 0

      Musks current tunnels fails to meet any safety requirements

      Bullshit fear mongering, source? Musk said the tunnel casings are rated for 4x the max load they need to handle (even considering earthquakes).

      You seem to be equating strength of the tunnel casing with all safety requirements they are not. When a vehicle cashes producing thick toxic smoke and there are no sprinklers, escape routes, smoke evacuation systems etc. I'm sure people will be really pleased as that 4x the max load number. Incidentally do you know what the safety requirements are relating to the load?

      And as far as power goes, large and mid size TBMs are often connected right to the electric grid with their own dedicated substations.

      Which is stupid since you need to manage cables.

      I guess your expert opinion of this trumps that of the experience of those actually doing tunneling, guess Musk will be offering you a job given your great insight here.

      A big limiting factor of most TBMs is cutting tool life. In extreme hardrock conditions cutting discs often last less than 24 hours before needing replacement.

      Yes Boring Company already manages this just fine.

      Of course we'll take your word for it.

      and it goes on...

  54. Re:musk by Anonymous Coward · · Score: 0

    Look at Captain Virtue Signaler over here

  55. Re:musk by pgmrdlm · · Score: 1

    Want to know why your an AC? You can't handle truth. Your a coward when it confronts you. In this instance, your are a non caring asshole that doesn't give a flying fuck about your fellow citizens. Where the extreme right are bible thumping assholes. You are a fucking NAZI*(socialist) who doesn't care about anyone but your self. The only thing you are good for is to feed to the hogs. One body part at a time. Look forward to when you grow a set of balls and actually do something. I am sure you won't last 5 minutes in the real world. Why? Karma, you don't give a fuck about nobody. And that is exactly how you will be treated.

    --
    Anonymous comments are as pathetic as the anonymous "sources" that contaminate gutless journalism from the New York Time