Tunnels!

Roads - Rails - Sidewalks - Bikeways
DanPatchToget
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Re: Tunnels!

Postby DanPatchToget » March 22nd, 2017, 9:33 am

My professor in Norway told us about this in 2015. I guess if it makes the trip safer then props to them.

Quite amazing how many rail tunnels there are in Oslo, not just for the T-Bane (Metro) but also for regional trains. Makes me wonder what the public process is for these projects (if there are any) while here we can barely get through building a short tunnel for light rail trains (Kenwood).

talindsay
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Re: Tunnels!

Postby talindsay » March 25th, 2017, 9:36 am

Norway has insane amounts of oil money and a pretty homogenous and liberal population. Very different from here.

thatchio
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Re: Tunnels!

Postby thatchio » March 26th, 2017, 11:29 pm

NOVA special on Cross Rail tunnel construction in London. http://www.pbs.org/wgbh/nova/tech/super-tunnel.html

mattaudio
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Re: Tunnels!

Postby mattaudio » March 27th, 2017, 8:39 am

I'd like to see a similar special on the tunneling that Seattle has done for transit - Seattle seems to be alone in the U.S. in a) doing lots of new transit tunneling and b) being successful and below budget with it. Maybe Thatcher could be interviewed for it.

thatchio
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Re: Tunnels!

Postby thatchio » March 27th, 2017, 11:33 pm

Ha, I'm not doing anything on the tunnels except trying to get TOD done adjacent a future tunnel station. Though we are trying to figure out how to better integrate transit infrastructure with stations, push for incidental uses, and think about how we have more direct connections between stations and communities and adjacent buildings.

I do know that the agency no longer references the names of tunnel boring machines and just calls them TBM 1 and TBM 2. People were getting to attached to them.

steve0257
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Re: Tunnels!

Postby steve0257 » April 1st, 2017, 6:33 am

mattaudio wrote:
March 27th, 2017, 8:39 am
I'd like to see a similar special on the tunneling that Seattle has done for transit - Seattle seems to be alone in the U.S. in a) doing lots of new transit tunneling and b) being successful and below budget with it. Maybe Thatcher could be interviewed for it.
The only tunnel I'm aware of currently under construction in Seattle is to replace the Alaskan Viaduct, and to say it has been successful and under budget is a bit of a stretch.

http://www.seattletimes.com/seattle-new ... 99-tunnel/

thatchio
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Re: Tunnels!

Postby thatchio » April 2nd, 2017, 9:55 am

Steve, I think he's referencing the recently tunneled sections for rail. The Alaskan Viaduct project has not gone well and is an atypical project anyway, with the large diameter tunnel that went through some really sketchy soils (and got stuck).

The extension to UW was delivered under budget: http://www.soundtransit.org/About-Sound ... pitol-hill

The tunnel boring to extend the rail north of UW is also complete and now they're constructing cross passages and stations:
http://www.soundtransit.org/About-Sound ... ining-last

talindsay
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Re: Tunnels!

Postby talindsay » April 2nd, 2017, 3:34 pm

This is such a boring conversation.

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Anondson
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Re: Tunnels!

Postby Anondson » April 9th, 2017, 8:31 pm

A few days ago Bertha broke through.

http://nypost.com/2017/04/04/worlds-lar ... =applenews

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Anondson
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Tunnels!

Postby Anondson » April 9th, 2017, 8:36 pm

And for a much lighter boring topic, or maybe burrowing ...

http://www.sciencealert.com/this-massiv ... ega-sloths

Massive ancient tunnels in South America were burrowed by extinct giant sloths.

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Anondson
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Re: Tunnels!

Postby Anondson » April 29th, 2017, 8:03 am

It feels like Elon Musk is edging closer and closer to rediscovering subways.

https://electrek.co/2017/04/28/elon-mus ... ept-video/

His Boring Company concept video shows cars driving on to platforms that zoom drivers through tunnels underground at very fast speeds.

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VacantLuxuries
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Re: Tunnels!

Postby VacantLuxuries » April 29th, 2017, 8:38 pm

More like he's rediscovering slot cars.

To me that seems like another Hyperloop/PRT/Monorail idea that will be championed by a few very passionate individuals but never be taken seriously. However, if in the process he makes building subway lines cheaper, I'm not complaining.

grrdanko
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Re: Tunnels!

Postby grrdanko » April 29th, 2017, 8:57 pm


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mister.shoes
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Re: Tunnels!

Postby mister.shoes » April 29th, 2017, 11:58 pm

"MAN WHO OWNS CAR COMPANY THINKS WE SHOULD BUILD PUBLIC TRANSIT SYSTEM FOR CARS"
https://daringfireball.net/linked/2017/ ... usk-boring
The problem with being an introvert online is that no one knows you're just hanging out and listening.

talindsay
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Re: Tunnels!

Postby talindsay » April 30th, 2017, 2:13 pm

Right? Look to the auto industry to solve questions, and unsurprisingly they'll come up with auto industry-oriented answers.

StPaulDeveloper
Block E
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Re: Tunnels!

Postby StPaulDeveloper » May 1st, 2017, 10:00 am

Awesome video everyone should check out.

https://boringcompany.com/

nBode
Union Depot
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Re: Tunnels!

Postby nBode » May 1st, 2017, 6:08 pm

Man, if only we could make that system more efficient by utilizing super-high capacity vehicles instead of single-occupancy cars.

mattaudio
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Re: Tunnels!

Postby mattaudio » May 1st, 2017, 7:26 pm

You mean there's better use of tunneling than this?
https://goo.gl/maps/yJjM548j5nz

seanrichardryan
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Re: Tunnels!

Postby seanrichardryan » May 1st, 2017, 10:01 pm

Elon Musk's tunnel plan is surprisingly outdated—and bad
The latest “traffic solution” from Musk is detrimental to those hard at work solving real problems
https://www.curbed.com/2017/5/1/1550071 ... raffic-ted
Q. What, what? A. In da butt.

mamundsen
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Re: Tunnels!

Postby mamundsen » May 16th, 2017, 10:28 pm

KSTP is doing a story Wednesday at 10pm about the Lowry Tunnel. Called it the worst bottleneck in the metro and said they wanted to understand everything about the project. Anyone think they will have anything interesting?


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