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Old October 11th, 2019, 10:21 PM   #7501
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Very frustrating, especially when we on this forum could see this issue needed resolving in the very small window of opportunity that existed in 2015/16.

The award winning 'green' Crossrail depot is now built, and clearly not designed in such a way that the airspace above it can ever be used - unless another depot is to be built at huge expense elsewhere.

North of the depot are 32 sidings - covering an area of about 220 by 180 m. This I am sure could be decked over, but would no doubt require removal of some sidings for the piled support columns- perhaps six or seven of them? Which would of course then have to be replicated elsewhere on the GWML in London. There is a year to do this if anyone with clout can get their act together. My odds of it happening? 50 to 1....

And of course the HS2 review has now added yet another layer of inertia.
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Old October 12th, 2019, 12:35 PM   #7502
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Quote:
Originally Posted by Vulcan's Finest View Post
Very frustrating, especially when we on this forum could see this issue needed resolving in the very small window of opportunity that existed in 2015/16.

The award winning 'green' Crossrail depot is now built, and clearly not designed in such a way that the airspace above it can ever be used - unless another depot is to be built at huge expense elsewhere.

North of the depot are 32 sidings - covering an area of about 220 by 180 m. This I am sure could be decked over, but would no doubt require removal of some sidings for the piled support columns- perhaps six or seven of them? Which would of course then have to be replicated elsewhere on the GWML in London. There is a year to do this if anyone with clout can get their act together. My odds of it happening? 50 to 1....

And of course the HS2 review has now added yet another layer of inertia.
Come one, let's be real, there is big fat zero chance of anything happening there.

Everyone is now focused on getting the thing running not redesigning the sidings for the benefit of some far future development. We can just as well forget about it.
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Old October 15th, 2019, 06:38 PM   #7503
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Rather sympathetic review of Crossrail:

https://edition.cnn.com/travel/artic...est/index.html
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Old October 16th, 2019, 02:04 AM   #7504
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Quote:
Originally Posted by Jon10 View Post
Rather sympathetic review of Crossrail:

https://edition.cnn.com/travel/artic...est/index.html
It is so unprofessional. Almost all facts are wrong. The first single underground line crossing London? 100 km of new underground lines??? Larger than the Channel Tunnel?

Really?
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Old October 16th, 2019, 12:17 PM   #7505
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Quote:
Originally Posted by bench_mark_2 View Post
It is so unprofessional. Almost all facts are wrong. The first single underground line crossing London? 100 km of new underground lines??? Larger than the Channel Tunnel?

Really?
The 100km of new underground line is nonsense, there are 21km total of new tunnels.

The other two however, are true. The project is much larger than the Channel Tunnel as the core stations are huge projects in their own right. The engineering required to build them was incredible. The Chunnel however, whilst incredibly impressive was effectively a big tunnel boring operation. Crossrail was that and more.

Also, it is indeed the first single underground line crossing London. The other ones were a selection of projects and extensions over the years, not one project. Even the Central Line which originally only went as far east as Liverpool Street.
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Old October 16th, 2019, 12:32 PM   #7506
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Quote:
Originally Posted by ill tonkso View Post
The 100km of new underground line is nonsense, there are 21km total of new tunnels.
A pedant says 42km
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Old October 17th, 2019, 10:53 AM   #7507
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Quote:
Originally Posted by Stuu View Post
A pedant says 42km
A more pedantic pedant says 84km of line
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Old October 17th, 2019, 12:08 PM   #7508
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Quote:
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A more pedantic pedant says 84km of line
I'm all up for pedantry, but how do you get to 84km? (apart from doubling 42...)
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Old October 17th, 2019, 12:14 PM   #7509
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Bizarrely the article says "Trains will pass through 42 kilometers of new tunnels stretching from Reading in the west" just 3 paragraphs down!
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Old October 17th, 2019, 01:51 PM   #7510
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Quote:
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I'm all up for pedantry, but how do you get to 84km? (apart from doubling 42...)
Literally by doubling 42. 42Km of new tunnel. Track needs a left rail and a right rail, which are lines (maybe not in the rail definition in terms of lines on a map but nevermind), or indeed under, the ground. Thus we have drawn 84Km of lines. Probably not worth either of our time but ho hum, its a slow day.....
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Old October 21st, 2019, 01:53 PM   #7511
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Quote:
Originally Posted by damo_ View Post
Literally by doubling 42. 42Km of new tunnel. Track needs a left rail and a right rail, which are lines (maybe not in the rail definition in terms of lines on a map but nevermind), or indeed under, the ground. Thus we have drawn 84Km of lines. Probably not worth either of our time but ho hum, its a slow day.....
I thought the 42 km including the count of each bore.
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Old October 21st, 2019, 02:45 PM   #7512
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Read all about tunnel lengths here...

http://www.crossrail.co.uk/construct...ilway-tunnels/

http://74f85f59f39b887b696f-ab656259...2013_92419.jpg
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Old October 29th, 2019, 01:39 PM   #7513
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Interesting documentry from 1995 showing again on BBC Iplayer, about the Jubilee line extension, its problems and delays and the spray concrete method for the "clay" half of the tunnel, I assume they didnt bother with the dual approach with Crossrail? Some nice arial shots of London too, my how it has changed!

https://www.bbc.co.uk/iplayer/episod...ickiest-tunnel
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Old October 29th, 2019, 01:52 PM   #7514
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They uploaded new photos on their Flickr.

Some selected:

Farringdon Station_327821
by Crossrail Project, on Flickr


Farringdon Station_327822
by Crossrail Project, on Flickr


Farringdon Station_327823
by Crossrail Project, on Flickr


Farringdon Station_327826
by Crossrail Project, on Flickr


Liverpool Street Station_328551
by Crossrail Project, on Flickr


Liverpool Street Station_328561
by Crossrail Project, on Flickr


Liverpool Street Station_328562
by Crossrail Project, on Flickr


Liverpool Street Station_328566
by Crossrail Project, on Flickr


Liverpool Street Station_328568
by Crossrail Project, on Flickr


Paddington Station_328512
by Crossrail Project, on Flickr


Paddington Station_328523
by Crossrail Project, on Flickr


Tottenham Court Road Station _327693
by Crossrail Project, on Flickr

Last edited by geogregor; October 30th, 2019 at 01:27 PM.
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Old October 29th, 2019, 05:30 PM   #7515
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Wow, they were so behind. Also, “Abbeywood” ?

Looking slick though. Given people will be waiting here longer than tube platforms typically, especially westbound re stopping patterns, but also due to the eastern split, there doesn’t seem much seating and circulating space on the platforms themselves.
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Old October 29th, 2019, 06:21 PM   #7516
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It's no worse than the Metropolitan line really.
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Old October 30th, 2019, 12:47 AM   #7517
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Quote:
Originally Posted by potto View Post
Interesting documentry from 1995 showing again on BBC Iplayer, about the Jubilee line extension, its problems and delays and the spray concrete method for the "clay" half of the tunnel, I assume they didnt bother with the dual approach with Crossrail? Some nice arial shots of London too, my how it has changed!

https://www.bbc.co.uk/iplayer/episod...ickiest-tunnel
Thanks for sharing that, really interesting.

Incredible that they built the JLE in just four years!! Why do things take soooo much longer now? Even the short Silvertown tunnel will take as long or longer.
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Old November 5th, 2019, 12:30 AM   #7518
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Quote:
Originally Posted by potto View Post
Interesting documentry from 1995 showing again on BBC Iplayer, about the Jubilee line extension, its problems and delays and the spray concrete method for the "clay" half of the tunnel, I assume they didnt bother with the dual approach with Crossrail? Some nice arial shots of London too, my how it has changed!

https://www.bbc.co.uk/iplayer/episod...ickiest-tunnel
There's also a super interesting 4-part (I think) series on building the Victoria Line on youtube. The narration in it is hilarious!

Last edited by aldredd; November 5th, 2019 at 12:41 AM.
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Old November 5th, 2019, 12:42 AM   #7519
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Quote:
Originally Posted by LondonerN1 View Post
Thanks for sharing that, really interesting.

Incredible that they built the JLE in just four years!! Why do things take soooo much longer now? Even the short Silvertown tunnel will take as long or longer.
The JLE was (officially) under construction from Dec 1993 to Dec 1999. But it opened without the signalling system it should have had, which limited capacity for another 12 years
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Old November 6th, 2019, 05:44 PM   #7520
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Two videos uploaded yesterday:



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