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Post by brigham on Oct 7, 2020 17:21:46 GMT
True, we never got the mainline option.
Just the bill!
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Post by Chris L on Oct 7, 2020 18:18:30 GMT
When I've seen trains running in the tunnels they look very like main line trains. The platforms are so long that effective passenger safety control requires platform edge screens. In case people haven't noticed some class 319s have been converted to carry packages on pallets into Liverpool Street. Presumably these could be extended through the tunnels. Sorry about the wait but the project will come together. There are much longer platforms on the ECML, none of which have platform edge doors. I'm sure the same applies throughout the National Network. Can someone list the number of classes of train currently on NR register which can pass through the new link? I'm thinking it isn't going to be many. I'll start the list with 319s... Not with the numbers of passengers and the train frequency and limited stop time. Why couldn't modified (non passenger) 319s enter the tunnels?
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Post by revupminster on Oct 7, 2020 18:55:39 GMT
A decision was made some years ago that the Jubilee line would be the last underground to be built at tube stock gauge. One of the reasons the junction at North Greenwich was abandoned even though the step-plate junction was built. Crossrail to Abbey Wood replaced the intended Jubilee/Fleet line branch. The decision to go to Stratford was more because of available land to build a depot.
The Hackney- Wimbledon line was to have taken over the District and Central Line open sections where main line gauge trains could run but has grown out of all proportion to what was originally envisaged. Cannot seeing it being built.
The Northern extension to Battersea came out of nowhere probably because of private money from the developers and some from the Americans and the new US embassy.
I suppose any train in theory could pass through the Crossrail tunnels in some form of slow manual as they would not be able to use the ATO. I don't what happens on Thameslink if a non ATO has to use the central section.
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Post by bomo on Oct 11, 2020 7:20:04 GMT
I don't what happens on Thameslink if a non ATO has to use the central section. TL core retains standard signalling in parallel with the in cab signalling. Electrical and other clearances through the TL core are very tight and the list of stock types permitted to travel through it with the overhead line energised is very small (and not that much larger with it isolated).
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Post by billbedford on Oct 11, 2020 10:02:50 GMT
I don't what happens on Thameslink if a non ATO has to use the central section. TL core retains standard signalling in parallel with the in cab signalling. Electrical and other clearances through the TL core are very tight and the list of stock types permitted to travel through it with the overhead line energised is very small (and not that much larger with it isolated). Is that because other stock is specifically banned from the route, or because no-one has ever asked for permission to use other stock?
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Post by superteacher on Oct 11, 2020 10:54:51 GMT
This thread has become a kind of "backwards RIPAS" - i.e. what might / could have been!
I think it was inevitable that TFL would be given full control of the project for many of the reasons already mentioned.
But regardless of the the details, we need to get this open as soon as possible so that we can get on with using it! It's actually quite comforting that the Germans, known throughout the world for their efficiency, also have a similarly embarrassing project (Brandenburg Airport).
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Post by phil on Oct 12, 2020 7:22:50 GMT
TL core retains standard signalling in parallel with the in cab signalling. Electrical and other clearances through the TL core are very tight and the list of stock types permitted to travel through it with the overhead line energised is very small (and not that much larger with it isolated). Is that because other stock is specifically banned from the route, or because no-one has ever asked for permission to use other stock?
Read what Bomo said!
The Thameslink core was built to very tight clearances and most stock built to 'standard' National rail profiles will scrape the tunnel wall on curves or come too close to the Overhead lines. Even back in the 1950s even the standard non corridor suburban Mk1 non corridor coach wouldn't fit without modifications to the window ventilators which stuck out just a tad too much while in more modern times the BR 319 EMUs had a number of subtle alterations over their superficially similar 317 or 455 units to make them fit.
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Post by phil on Oct 12, 2020 7:47:27 GMT
Ask a stupid question, but is it possible to run freight through the tunnels?
No
The platforms are higher than national rail standards allow to have level boarding and no signifficant gaps between the platform and the train. This eats into space required for freight wagons - particularly those which need a lower deck level to account for the confined UK loading gauge but still retaining the ability to transport things like 9ft high containers. This is why the ELL can have level boarding north of New Cross Gate, but south of there plus the entire North London, West London and Gospel Oak - Barking cannot.
However even if the platforms weren't an issue there are a whole plethora of other issues including:-
(1) Those platform edge doors play havoc with the aerodynamics for non stopping trains - effectively passage through the stations will have to be done slowly.
(2) Freight wagon suspension is relatively crude compared to passenger standards (and not maintained as well either). The result is more wear on the rails etc. which then need to be renewed sooner as well as more vibration and noise.
(3) Freight not in sealed containers of some sort can be very messy and create high levels of dust say (aggregates) other freight might well be hazardous were an accident of some kind to occur in such a long tunnel.
(4) The acceleration, deceleration and general performance of freight (even electrically hauled ones) is pretty woeful compared to EMUs with their distributed traction power. As a result line capacity is significantly reduced where the two mix (hence the idea of taking the fastest trains off the WCML and onto the new build HS2).
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Post by norbitonflyer on Oct 12, 2020 7:47:47 GMT
A decision was made some years ago that the Jubilee line would be the last underground to be built at tube stock gauge. Even that might not have happened were it not for the need for the trains to fit the existing Bakerloo tunnels between Baker Street and Finchley Road. Even back in the 1950s even the standard non corridor suburban Mk1 non corridor coach wouldn't fit without modifications to the window ventilators which stuck out just a tad too much The tightest clearances were on the Hotel Curve, which precluded the use of long-framed dmu stock. The GN services to/from the Widened lines were all short-framed non-corridor hauled stock until, in the 1970s, Class 106 DMUs cascaded from the closed Midland & Great Northern system in Norfolk took over some of the services. These were of low density layout and, being two-car units, an eight car train had no less than six redundant driving cabs in the formation. The Midland line's Class 127s and later 317s had long frames, but they used the rather less tightly curved spur under St Pancras station. Class 700s now access the GN line through the "Canal Tunnels", not the old Hotel Curve under Kings Cross.
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Post by spsmiler on Oct 17, 2020 11:29:37 GMT
A decision was made some years ago that the Jubilee line would be the last underground to be built at tube stock gauge. Even that might not have happened were it not for the need for the trains to fit the existing Bakerloo tunnels between Baker Street and Finchley Road. I very much wish that the Baker Street - Finchley Road tunnels had been enlarged, even if only for a wider compromise height train - as the trains use the electric rail system there would not have been a need to consider space for pantographs or overhead wires and the roofs could still have been curved. Ah well, too late now.
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Post by goldenarrow on Oct 19, 2020 16:30:14 GMT
The druids have gathered at the stone circle of Sunkenkirk where a full moon told them of a predicted core opening of late 2021* *For the purposes of this post, artistic license has been taken for the purposes of comedic effect which may not represent how announcements relating to the opening of the Crossrail core actually unfolded
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Post by Chris L on Oct 19, 2020 20:39:17 GMT
The druids have gathered at the stone circle of Sunkenkirk where a full moon told them of a predicted core opening of late 2021* *For the purposes of this post, artistic license has been taken for the purposes of comedic effect which may not represent how announcements relating to opening of the Crossrail core actually unfoldedOnly Abbey Wood/Paddington and only if they can get trial running in the first quarter of next year.
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Post by elsombernie on Oct 22, 2020 14:34:49 GMT
I've seen a number of 9 car trains running through Custom House over the last three or four weeks, mainly on Saturday mornings around 09:15, but also a couple of times around lunchtime during the week. Today's observation, about 13:10, was a departure from the westbound platform, using the crossover to the west of the station, to the eastbound line/tunnel.
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vincenture
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Post by vincenture on Nov 3, 2020 15:09:00 GMT
Even that might not have happened were it not for the need for the trains to fit the existing Bakerloo tunnels between Baker Street and Finchley Road. I very much wish that the Baker Street - Finchley Road tunnels had been enlarged, even if only for a wider compromise height train - as the trains use the electric rail system there would not have been a need to consider space for pantographs or overhead wires and the roofs could still have been curved. Ah well, too late now. Reminds me of essential Jubilee line tunneling works between Baker Street and Bond Street. Probably tunnel widening for speed increase and drainage.
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Post by alpinejohn on Nov 3, 2020 19:30:11 GMT
I am not sure what work you were referring to in your post, but back in 2015 the work done on the Jubilee tunnels was basically to replace some degrading concrete tunnel rings not to increase speed - although I guess installing new rings and modern grout may have also helped reduce any water ingress. www.ses-group.co.uk/Bond-Street-to-Baker-Street.aspx
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vincenture
Quiz tryhard, and an advocate for simpler, less complicated rail routes
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Post by vincenture on Nov 4, 2020 18:41:06 GMT
Thank you for the insight! I just felt that the speed was increased around that section based on journey videos on Youtube.
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Post by goldenarrow on Nov 4, 2020 19:04:37 GMT
Thank you for the insight! I just felt that the speed was increased around that section based on journey videos on Youtube. It wasn't only speed that got an uplift, noise wise the NB line in particular was a screaming banshee in the first few months.
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vincenture
Quiz tryhard, and an advocate for simpler, less complicated rail routes
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Post by vincenture on Nov 5, 2020 8:21:15 GMT
Thank you for the insight! I just felt that the speed was increased around that section based on journey videos on Youtube. It wasn't only speed that got an uplift, the NB line in particular was a screaming banshee in the first few months. I definitely would agggreeeeeee on thattt
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Post by Chris L on Nov 8, 2020 4:02:58 GMT
I see from a Twitter feed that they managed to get 6 trains running at the same time in the central area last week.
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Post by alpinejohn on Nov 8, 2020 20:10:57 GMT
I see from a Twitter feed that they managed to get 6 trains running at the same time in the central area last week. As this is considerably more than NIL, then this clearly represents some sort of progress - even if there are none of those nasty passengers to worry about. However the ability for 6 trains to operate simultaneously when spread out somewhere along the 5 core stations (Paddington-Liverpool Street) so potentially spread over 10 platforms, does not really sound like there is any great sense of urgency about the testing process. One might wonder if they are actually aiming for a pasenger service launch sometime in the mid 2030's rather than the mid 2020's. I thought the whole point of all this fancy computerised train control system was that it was designed from the outset to allow an incredibly intense service through the core. The belated introduction of 710s on GOBLIN was a nightmare I am sure none of us wish to see again.
Yet I have this horrible feeling of deja vous when it comes to sorting out the software problems on the 345s so they play nicely with the multiple signalling systems along the Elizabeth Line. 345's seem to already have had plenty of problems just delivering a reliable service trunding between Paddington and Heathrow.
Any bets on whether the next phase of software testing with the 345's running through the core is about to become the latest reason for further delays and cost over-runs?
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Post by Chris L on Nov 8, 2020 20:47:14 GMT
I see from a Twitter feed that they managed to get 6 trains running at the same time in the central area last week. As this is considerably more than NIL, then this clearly represents some sort of progress - even if there are none of those nasty passengers to worry about. However the ability for 6 trains to operate simultaneously when spread out somewhere along the 5 core stations (Paddington-Liverpool Street) so potentially spread over 10 platforms, does not really sound like there is any great sense of urgency about the testing process. One might wonder if they are actually aiming for a pasenger service launch sometime in the mid 2030's rather than the mid 2020's. I thought the whole point of all this fancy computerised train control system was that it was designed from the outset to allow an incredibly intense service through the core. The belated introduction of 710s on GOBLIN was a nightmare I am sure none of us wish to see again.
Yet I have this horrible feeling of deja vous when it comes to sorting out the software problems on the 345s so they play nicely with the multiple signalling systems along the Elizabeth Line. 345's seem to already have had plenty of problems just delivering a reliable service trunding between Paddington and Heathrow.
Any bets on whether the next phase of software testing with the 345's running through the core is about to become the latest reason for further delays and cost over-runs?
Not from the outset. The Bombardier trains were supposed to work with a Bombardier signalling system in the core section. Bombardier were unable to provide a viable system and Siemens took over. This did lead to problems but the 6 trains were running under software close to that to be used for trial running.
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Post by itfcfan on Nov 18, 2020 16:20:36 GMT
I see from a Twitter feed that they managed to get 6 trains running at the same time in the central area last week. Out of interest - it'd be great if you could share this Twitter feed (and any others with up to date information on Crossrail). Thank you!
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Post by Chris L on Nov 20, 2020 22:20:38 GMT
I see from a Twitter feed that they managed to get 6 trains running at the same time in the central area last week. Out of interest - it'd be great if you could share this Twitter feed (and any others with up to date information on Crossrail). Thank you! twitter.com/Crossrail
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Post by goldenarrow on Nov 21, 2020 14:50:38 GMT
The papers for the 2nd meeting of the Elizabeth line committee have now been made public:
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Post by silenthunter on Nov 21, 2020 15:04:43 GMT
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Post by alpinejohn on Nov 21, 2020 19:19:21 GMT
So what on earth is going on now?
This time last month we were alerted that ..
"The druids have gathered at the stone circle of Sunkenkirk where a full moon told them of a predicted core opening of late 2021*
Now the article referred to directly above now states that date has slipped to first half of 2022, and presumably Andy Byfords comments mean that date is at risk, as it assumes someone stumps up a shed load of extra money very soon - or key workers will start to jump ship.
I am beginning to wonder if there is someone out there unbuilding this railway?
Perhaps people will finally realise TFL need to start earning some income from this moneypit.
In short we need TFL to take an axe to all the "would be nice stuff" which currently provides a convenient excuse to say stuff cannot open. Stuff which goes way beyond what HSE require for Thameslink trains which have been running under London for years.
Almost every day there are undoubtely things which are not working on other TFL lines - faulty lifts, faulty escalators, cones around trip hazards.. and yet somehow no one suggest the whole line is shut down. Perhaps it is time to go for a less super duper railway and realise that we really need TFL to open the line with some unresolved flaws, with some accessiblity constraints, for a brief period and allow all residual stuff to be fixed as and when.
COVID is the only reason people are not screaming at TFL to get that railway carrying people now.
We have already seen pretty videos showing that trains can arrive at platforms. doors can open, doors can close and the train depart without anyone dying. So you do not need any fancy software upgrades especially if you constrain the core operation to just two trains with just one train allocated per running tunnel so they can run back and forward on a single engine in steam principle.
It may not be perfect but at last this jinxed project will be of use to the people of London rather than simply providing a never ending job creation scheme.
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Post by Chris L on Nov 21, 2020 21:32:46 GMT
So what on earth is going on now? This time last month we were alerted that .. "The druids have gathered at the stone circle of Sunkenkirk where a full moon told them of a predicted core opening of late 2021* Now the article referred to directly above now states that date has slipped to first half of 2022, and presumably Andy Byfords comments mean that date is at risk, as it assumes someone stumps up a shed load of extra money very soon - or key workers will start to jump ship. I am beginning to wonder if there is someone out there unbuilding this railway? Perhaps people will finally realise TFL need to start earning some income from this moneypit. In short we need TFL to take an axe to all the "would be nice stuff" which currently provides a convenient excuse to say stuff cannot open. Stuff which goes way beyond what HSE require for Thameslink trains which have been running under London for years. Almost every day there are undoubtely things which are not working on other TFL lines - faulty lifts, faulty escalators, cones around trip hazards.. and yet somehow no one suggest the whole line is shut down. Perhaps it is time to go for a less super duper railway and realise that we really need TFL to open the line with some unresolved flaws, with some accessiblity constraints, for a brief period and allow all residual stuff to be fixed as and when. COVID is the only reason people are not screaming at TFL to get that railway carrying people now. We have already seen pretty videos showing that trains can arrive at platforms. doors can open, doors can close and the train depart without anyone dying. So you do not need any fancy software upgrades especially if you constrain the core operation to just two trains with just one train allocated per running tunnel so they can run back and forward on a single engine in steam principle. It may not be perfect but at last this jinxed project will be of use to the people of London rather than simply providing a never ending job creation scheme. Unfortunately a bit too simple. The software doesn't allow for running the number of trains scheduled to run through the tunnels. Trials with real people using the stations and trains are needed. The platforms are very deep below ground and there are lots of systems to be integrated into the existing railway. A example from the past was the new Angel station with long escalators. These had been tested with weights and passed for service. Unfortunately when the entrance opened and people started walking down the escalators it was found that the treads were moving out of alignment because real people were putting their weight on them. The new entrance had to be closed for adjustments to be made.
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Post by jimbo on Nov 28, 2020 3:02:46 GMT
Latest Elizabeth Line route schedule revealed in FoI request here . As previously discussed here, seems plan now when central section opens, is to retain TfL Rail name for existing routes. But when Shenfield service extends to Paddington, unclear if all lines become Elizabeth line.
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Chris M
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Post by Chris M on Nov 28, 2020 3:21:46 GMT
Hmm, leaving everything as TfL Rail will incur some rebranding costs but then so will changing TfL Rail to Elizabeth line. I wonder if someone has done the sums to work out which costs more?
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DWS
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Post by DWS on Nov 28, 2020 7:42:52 GMT
Latest Elizabeth Line route schedule revealed in FoI request here . As previously discussed here, seems plan now when central section opens, is to retain TfL Rail name for existing routes. But when Shenfield service extends to Paddington, unclear if all lines become Elizabeth line. The link doesn’t work.
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