Toronto Spadina Subway Extension Emergency Exits | ?m | 1s | TTC | IBI Group

vz64 said:
Are we seeing Yorkie and Torkie? :) I wonder why both of them are in the same location; maybe tunnel building work will start there going north and south?
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It's one tunnel per track, two tracks: two parallel tunnels. IIRC 4 TBMs were ordered for Spadina extension.

This is the case for most of the Toronto system.
 
vz64 said:
Are we seeing Yorkie and Torkie? :) I wonder why both of them are in the same location; maybe tunnel building work will start there going north and south?
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As pointed out, there are four TBMs being delivered. The first two to the future site of Sheppard West Station, and the second two - which are currently being delivered - to the future site of Steeles West Station.

There are 6 sets of "drives" that the pairs of TBMs will be making. The southern pair of TBMs will start by boring north to Finch West Station, and will then be removed, moved back to the Sheppard West Station site and finish by boring the pair of tunnels to Downsview Station. The northern pair will start at Steeles West and head south to Finch West Station. They will then be removed, transported to the site of the future Highway 407 Station, and make two quick jaunts - the first southwards to Steeles West Station, and the second and final drive will be north to the future Vaughan Centre Station.

Dan
Toronto, Ont.
 
Nice $279 million contract for AECON seeing that they just reported a big decline in fourth-quarter earnings.
 
M II A II R II K said:
Perhaps they could tunnel the rest of the subway plans and earn a profit instead.
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Tunnelling won't be complete until about 2014. If Ford can magically get his Sheppard experiment to work, they could very well just move the TBMs to a site along Sheppard and just continue digging.

The semi-realistic possibility is that they would sit un-used for about 3 years, and THEN they would start digging on Sheppard.

The pessimistic possibility is that they'll be done tunnelling Spadina, and then never be used again, because no new transit construction will be taking place (Eglinton is using different TBMs).
 
According to TTC's Spidina Subway Extension site, the completion of tunneling work should take "only" two years:

"•Construction of the subway tunnel is expected to start on the subway route in 2010. Four tunnel boring machines will be used to tunnel for almost two years to complete a little over six kilometres of twin tunnels. There will be some early construction work done for utilities and roadwork prior to tunnel construction" FAQ.jsp

So, if preparation stage for Sheppard line extension is done in two years (EA etc.), then there is a hope...
 
M II A II R II K said:
And not all of that Sheppard Line has to be tunnelled.
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Good point. In fact, I think there would be a real case to have it elevated between Agincourt and STC, or at least from the 401 to STC. A superhighway and an industrial area aren't exactly "sensitive" areas that need protecting from visual obstructions, heck they ARE visual obstructions!

The section from Don Mills to Agincourt would need to be though, unless they would opt for cut-and-cover, which I doubt.
 
gweed123 said:
Good point. In fact, I think there would be a real case to have it elevated between Agincourt and STC, or at least from the 401 to STC. A superhighway and an industrial area aren't exactly "sensitive" areas that need protecting from visual obstructions, heck they ARE visual obstructions!

The section from Don Mills to Agincourt would need to be though, unless they would opt for cut-and-cover, which I doubt.
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I seriously don't get Toronto's aversion to elevated rail. We have cities like Hong Kong, Miami, Vancouver building their transit above ground - it's cheaper, it doesn't look too bad if proper design is involved, and it's rapid transit.
 
superman said:
I seriously don't get Toronto's aversion to elevated rail. We have cities like Hong Kong, Miami, Vancouver building their transit above ground - it's cheaper, it doesn't look too bad if proper design is involved, and it's rapid transit.
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I don't disagree at all. I think Eglinton East and West would also be a perfect place to implement elevated.
 
Is it cheaper than trenching too? Plus there's not much on Sheppard East anyway to trench through or many sidestreets to trench under.
 
The tunnel boring machines have names according to York University's YFile:

Holey, Moley! York History Prof Names Tunnel-Boring Machines

By Jenny Pitt-Clark, YFile editor
Tuesday, February 01, 2011

When York history Professor Thomas Cohen read an online posting about a contest to name the four tunnel-boring machines that would be used to build the York-Spadina subway extension, it was a challenge he could not refuse.

The contest, which was sponsored by the Toronto Transit Commission (TTC), asked Torontonians to come up with quirky names for the giant earth-eating machines.

Cohen, who is a scholar of Renaissance Rome in the Department of Humanities in York's Faculty of Liberal Arts & Professional Studies (LA&PS), decided to enter the contest. An urban activist and advocate of public transit, Cohen thought the contest would not only be fun, but also a great way to draw attention to the important role the subway extension would play in uniting the Greater Toronto Area.

“I came up with the names of Holey and Moley,†he said with a laugh. “It was kind of a ‘Eureka’ moment for me. Essentially, the machines are moles that make marvellous holes. The words went together beautifully.â€

Earlier this year, Cohen received official notification that he had won the contest and two of the machines would be christened Holey and Moley. City of Vaughan resident Rose Rinella’s submission of Yorkie and Torkie snagged the other win. A total of 720 entries were submitted to the contest. The TTC narrowed the field to 10 entries and the public was invited to vote for their favourites. The winners secured the top spot by a landslide lead of more than 2,000 votes on the contest's website....


....Cohen and Rinella will be present at the official naming ceremony for the York-Spadina tunnel-boring machines that will take place this spring. If Cohen has his way, the ceremony location and time are sure to be on multiple listservs, posted online, tweeted and included in Facebook.

Read More: http://www.yorku.ca/yfile/archive/index.asp?Article=16354
 
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