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Post by spsmiler on Jan 10, 2020 21:30:57 GMT
every time... something new - which potentially will result in a delay
this in a city which built a much more extensive underground system - with such issues. (ie: not a city building its first urban metro)
Is this project any bigger than the Victoria line? or the Jubilee line extension?
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Post by silenthunter on Jan 10, 2020 21:41:14 GMT
Yes, I'd definitely so. Bigger tunnels than both for one thing.
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Post by goldenarrow on Jan 10, 2020 21:45:42 GMT
Is this project any bigger than the Victoria line? or the Jubilee line extension? Short answer? Yes. The Victoria line just can’t compete on scale. The Jubilee line has a few stations/sections that compare in engineering complexity and perhaps Canary Wharf station for scale. But no single project built in the capital so far matches Crossrail on size. A lot of the central station have structures that have been compared to aircraft carriers when talking about the combined area of the spaces now lying underground. What Crossrail does share with the Vic and Jubilee is the fact that London clay is now far from a clean slate and that trio of projects have each pushed the limits of what was technologically possible at that time. |
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Post by spsmiler on Jan 10, 2020 22:09:41 GMT
Is this project any bigger than the Victoria line? or the Jubilee line extension? Short answer? Yes. The Victoria line just can’t compete on scale. The Jubilee line has a few stations/sections that compare in engineering complexity and perhaps Canary Wharf station for scale. But no single project built in the capital so far will match Crossrail on size. A lot of the central station have structures that have been compared to aircraft carriers when talking about the combined area of the spaces being sunk underground. What Crossrail does share with the Vic and Jubilee is the fact that London clay is by far from a clean slate and that trio of projects have each pushed the limits of what was technologically possible at that time. Thanks - then this makes me concerned for Crossrail 2. London needs it but will the disruption, £costs£ and extended timescale dampen the appetite to actually build it? Also, re: 'aircraft carriers' ... the sound of people walking on the metal flooring at Westminster station (Jubilee line walkways around the escalators) makes me think of exactly that |
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Post by jimbo on Jan 11, 2020 0:25:17 GMT
Opening the central section in summer 2021 is definite slippage on plan to refine opening somewhere between October 2020 to March 2021, announced only nine months back in April 2019. It seems that Bond Street opening with the new service is not so much because of improvement at Bond Street, but more to do with slippage of line opening!
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Post by silenthunter on Jan 11, 2020 12:34:41 GMT
What still actually needs to be done? Is there a list somewhere?
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Post by goldenarrow on Jan 11, 2020 15:48:37 GMT
What still actually needs to be done? Is there a list somewhere? With the exceptions of Bond Street and Whitechapel most sites just have sift through litany of compliance and assurance regulatory paperwork that can be looked at as a sort of warranty from the contractor to the infrastructure manitner (Rail for London if I'm not mistaken). Bar those two stations, a casual observer would say that the stations of the core section look like that they could take passengers tomorrow, but that isn't to say that work is still ongoing. I hear that fire safety systems are being cycled through at a number of sites presently, that assurance process is at least three months in the making. Intensive testing of the signalling system hasn't yet started mostly thanks to the delays in getting the tunnel support systems (ventilation, emergency comms, walkways and lighting etc) fully integrated and tested aswell as issues with the stability of the system itself on the 345's which must be around version 12 by now if not higher. It will need a heck of a lot more testing before it anywhere near ready to support a passenger service. |
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Post by silenthunter on Jan 11, 2020 23:24:56 GMT
Can someone do a Google Documents kind of thing please?
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Post by theblackferret on Jan 13, 2020 20:16:10 GMT
Can anybody remember when construction started?
I'm not being sarcastic, just like to know, because there may be an elephant in this room nobody's mentioned.
Because if, as I read elsewhere on line all tunneling ended in 2015, what took place in 2016 that has rather dominated the financial agenda ever since?
And which will continue to do so for at least the next 12 months.
In other words, has that one event caused more ripples than anyone appreciates?
I'm not wanting to start any sort of political discussion about it, but if there has been significant economic uncertainty nationwide, is it not possible a project of the size Crossrail became is bound to reflect that uncertainty in terms of its' completion and launch?
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Post by Chris W on Jan 13, 2020 20:31:47 GMT
I'm not saying that it's correct, however Wikipedia reports that construction works commenced in 2009...
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Post by silenthunter on Jan 13, 2020 20:36:43 GMT
And the idea has been around since the 1970s. I remember the original 1990s proposal that was going to be going to Aylesbury...
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Post by goldenarrow on Jan 13, 2020 20:50:13 GMT
Can anybody remember when construction started? I'm not saying that it's correct, however Wikipedia reports that construction works commenced in 2009...
From a bulletin dated January 2009 provided by CRL to the occupants around TCR which was one of the first sites to have serious works done thanks to the LU project. |
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Post by Chris W on Jan 13, 2020 22:21:04 GMT
I wonder if the term ' construction works' is inclusive of the works involved in demolition... 
For example, with reference to the Astoria, that was on the site of today's TCR:
The timings (clearing the site in 2009, prior to the start of physical construction of TCR in early 2010) sound accurate to me...
Of note, once demolition is completed, a site needs to be prepared (e.g. removing any contamination such as asbestos) prior to further excavation or structural works being undertaken.
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Post by cudsn15 on Jan 14, 2020 10:21:19 GMT
There was hearsay - and I do believe it really was just that - but sometimes there is a kernel of truth to such rumours - that when the Tottenham Hotspur stadium began to fall behind they started luring crossrail construction labourers - of all grades and expertise - to help complete that with pay way beyond anything crossrail could compete with. If any did make that move I doubt it was enough to make much of a difference to Crossrail as I believe most of the delays were down to problems within the project itself rather than levels of labourers available...but you never know - sometimes one delay and exponentially snowball others further down the line...
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Post by dagdave on Jan 14, 2020 11:32:43 GMT
We put our house on the market some 15 months ago (Just before Crossrail was meant to open) and have just now moved to Romford. Looks like I've still got about two and a half years before I can get a through train. I'll be retired at this rate.
As for the Grauniad, my dad was a Fleet Street printer and according to him it was the compositors setting the type faces for printing in mirror image that got the spellings wrong.
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class411
Operations: Normal
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Post by class411 on Jan 14, 2020 18:04:02 GMT
I'm not saying that it's correct, however Wikipedia reports that construction works commenced in 2009... Just so you know for next time, when you see something stated in Wikipedia, look for small numbers at the end of the sentence. If these are present, they will point you to the sources from which the fact or facts in question were obtained. In this case: The Guardian Contract Journal The Telegraph (are these good enough for you?) This will avoid the need to add snarky comments about Wikipedia, which a few people seem to like to do. (In reality, they make themselves look rather daft to anyone who knows the lengths Wikipedia goes to check the facts in its articles.) No source - paper or internet - is infallible, but it's rather stupid to just place caveats around Wikipedia sourced information whilst leaving other sources unqualified. |
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Post by revupminster on Jan 14, 2020 20:11:34 GMT
I do a lot of editing on Wikipedia and it is 99% accurate unless your unlucky to go to an article that has been vandalised a few minutes before you log on. There are thousands of watchers watching articles they are interested in and quickly revert vandalism.
Most articles that are vandalised are of living persons, actors, politicians etc. Football clubs, historical and geographical articles as well when someone has a beef with something.
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Post by Dstock7080 on Jan 16, 2020 13:53:30 GMT
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rincew1nd
Administrator
Junior Under-wizzard of quiz
Posts: 10,286
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Post by rincew1nd on Jan 16, 2020 21:16:44 GMT
He talks about the control software being at a maturity not seen before, I note he doesn't say "stable" of "sufficiently mature".
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Post by silenthunter on Jan 18, 2020 14:17:08 GMT
It's maturing like a fine Scotch, it seems.
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Post by John Tuthill on Jan 18, 2020 14:55:04 GMT
It's maturing like a fine Scotch, it seems. With the commuters being held over the barrel due to escalating costs  |
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Post by superteacher on Jan 19, 2020 8:51:59 GMT
It must be difficult producing these videos, trying to put some form of positive spin on whet is essentially a complete embarrassment.
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Post by trt on Jan 21, 2020 15:47:27 GMT
He talks about the control software being at a maturity not seen before, I note he doesn't say "stable" of "sufficiently mature". It previously suffered from a high level of immaturity; and kept falling about in fits of giggling whenever anyone said they were putting Siemens into Elizabeth's tunnel. |
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Post by silenthunter on Jan 21, 2020 18:54:54 GMT
That would be weird... the 345s are from Bombardier.
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Post by Dstock7080 on Jan 21, 2020 19:15:03 GMT
That would be weird... the 345s are from Bombardier. It refers to Siemens Trainguard MT signalling system |
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rincew1nd
Administrator
Junior Under-wizzard of quiz
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Post by rincew1nd on Feb 6, 2020 19:28:38 GMT
Tim Dunn has spotted things coming to life at Farringdon:
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Post by Deep Level on Feb 6, 2020 21:10:51 GMT
Tim Dunn has spotted things coming to life at Farringdon: I'm a huge fan of the white text on purple and the use of sentence case rather than just upper case writing! |
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Post by trt on Feb 18, 2020 13:05:24 GMT
Tim Dunn has spotted things coming to life at Farringdon: It's a sign, I tell ye! |
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Post by crusty54 on Feb 18, 2020 20:00:37 GMT
The displays have been under test for more than a year.
A short video was shown on LinkedIn with 4 trains under test at the same time. At one point 2 trains got about as close together as you see on the DLR.
Another video showed the platform doors working with a train making a very short stop.
Other progress videos show quite a lot of progress and Bond Street but Whitechapel still struggling with finished panels etc.
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Post by crusty54 on Feb 18, 2020 20:02:55 GMT
That would be weird... the 345s are from Bombardier. It refers to Siemens Trainguard MT signalling system I understand the trains were delivered with Siemens status display panels in the cabs that Bombardier refused to accept and have now fitted their own. |
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