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Author Topic: Crossrail - further delay  (Read 25358 times)
SandTEngineer
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« Reply #15 on: May 12, 2020, 09:23:21 pm »


Appologies for that error, but my excuse is that when I posted the update I was sitting at my desk at home trying to work out some changes to the mechanical interlocking on an hi-tech GWR (Great Western Railway) 1908 pattern lever frame..... Roll Eyes Tongue

ETCS (European Train Control System) Level 0 Huh    If you added Automatic Train Control (ATC (Automatic Train Control)) would that make it level 1?

I ask as a baffled E&P Engineer

Yes it would, but it would need to be the Great Western Railway (GWR) version of Automatic Train Control (ATC) Grin

Edit: VickiS - Clarifying Acronym
« Last Edit: May 21, 2021, 01:59:53 pm by VickiS » Logged
Electric train
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« Reply #16 on: May 13, 2020, 07:08:34 am »


Appologies for that error, but my excuse is that when I posted the update I was sitting at my desk at home trying to work out some changes to the mechanical interlocking on an hi-tech GWR (Great Western Railway) 1908 pattern lever frame..... Roll Eyes Tongue

ETCS (European Train Control System) Level 0 Huh    If you added ATC (Automatic Train Control) would that make it level 1?

I ask as a baffled E&P Engineer

Yes it would, but it would need to be the GWR version of ATC Grin

Is there any other,  can just see a 44' 3" ramp would work at 125 mph

Interesting document on the GWR ATC here https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=19&ved=2ahUKEwjV6_iAlbDpAhWbVBUIHcGIACIQFjASegQIBBAB&url=http%3A%2F%2Fwww.rmweb.co.uk%2Fcommunity%2Findex.php%3Fapp%3Dcore%26module%3Dattach%26section%3Dattach%26attach_id%3D953953&usg=AOvVaw1NVyPmiY3fex5c6T9LydM8&cshid=1589349951811925
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Oxonhutch
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« Reply #17 on: May 13, 2020, 08:34:43 am »

Is there any other,  can just see a 44' 3" ramp would work at 125 mph

Just under a quarter second should be enough, shouldn't it?  Grin

Although reading the attached article, the effective length is only 25'8" so 140 milliseconds might be a bit tight!
« Last Edit: May 13, 2020, 08:40:08 am by Oxonhutch » Logged
SandTEngineer
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« Reply #18 on: May 13, 2020, 08:38:31 am »


Appologies for that error, but my excuse is that when I posted the update I was sitting at my desk at home trying to work out some changes to the mechanical interlocking on an hi-tech GWR (Great Western Railway) 1908 pattern lever frame..... Roll Eyes Tongue

ETCS (European Train Control System) Level 0 Huh    If you added ATC (Automatic Train Control) would that make it level 1?

I ask as a baffled E&P Engineer

Yes it would, but it would need to be the GWR version of ATC Grin

Is there any other,  can just see a 44' 3" ramp would work at 125 mph

Interesting document on the GWR ATC here https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=19&ved=2ahUKEwjV6_iAlbDpAhWbVBUIHcGIACIQFjASegQIBBAB&url=http%3A%2F%2Fwww.rmweb.co.uk%2Fcommunity%2Findex.php%3Fapp%3Dcore%26module%3Dattach%26section%3Dattach%26attach_id%3D953953&usg=AOvVaw1NVyPmiY3fex5c6T9LydM8&cshid=1589349951811925

Yes, it could be done with coded track circuits like the original 1968 Victoria tube line. Level 1 is nothing new.. Grin
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SandTEngineer
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« Reply #19 on: May 17, 2020, 08:10:55 pm »

Latest Update: https://www.crossrail.co.uk/news/articles/crossrail-project-update
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TaplowGreen
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« Reply #20 on: May 17, 2020, 08:14:55 pm »


Does that represent a further delay?
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stuving
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« Reply #21 on: May 17, 2020, 08:18:17 pm »


No, it reads almost the same as January's update.
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SandTEngineer
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« Reply #22 on: May 18, 2020, 08:51:48 am »

I picked out this snippet:

Quote
Each Elizabeth line station has over 50 km of communications cabling, 200 CCTV (Closed Circuit Tele Vision) cameras, 66 information displays, 200 radio antennas, 750 loudspeakers and 50 help points. All this technology needs to be fully installed, tested and integrated.

 Tongue
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grahame
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« Reply #23 on: May 18, 2020, 09:19:54 am »

I picked out this snippet:

Quote
Each Elizabeth line station has over 50 km of communications cabling, 200 CCTV (Closed Circuit Tele Vision) cameras, 66 information displays, 200 radio antennas, 750 loudspeakers and 50 help points. All this technology needs to be fully installed, tested and integrated.

 Tongue

750 loudspeakers at places like Taplow may lead to complaints of noise nuisance from nearby housing, might it not?
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SandTEngineer
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« Reply #24 on: May 18, 2020, 09:29:41 am »

I picked out this snippet:

Quote
Each Elizabeth line station has over 50 km of communications cabling, 200 CCTV (Closed Circuit Tele Vision) cameras, 66 information displays, 200 radio antennas, 750 loudspeakers and 50 help points. All this technology needs to be fully installed, tested and integrated.

 Tongue

750 loudspeakers at places like Taplow may lead to complaints of noise nuisance from nearby housing, might it not?

I think they are speaking of the central section stations (pun intended) Grin
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Electric train
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« Reply #25 on: May 18, 2020, 01:47:27 pm »

I've been in one of the Contractors Lab / development area.  It would be complex in its self if it was just one company supply systems but its not.  There are large companies who are normally in cut throat competition with each other have to work collaboratively.

One concern they have (and they are a the UK (United Kingdom) part of Germany company) is the free flow of information and engineers after the 31st Dec 2020, whilst it will not stop progress may be slowed down
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Neither a wise man nor a brave man lies down on the tracks of history to wait for the train of the future to run over him.     
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TaplowGreen
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« Reply #26 on: May 19, 2020, 07:06:52 am »

I picked out this snippet:

Quote
Each Elizabeth line station has over 50 km of communications cabling, 200 CCTV (Closed Circuit Tele Vision) cameras, 66 information displays, 200 radio antennas, 750 loudspeakers and 50 help points. All this technology needs to be fully installed, tested and integrated.

 Tongue

750 loudspeakers at places like Taplow may lead to complaints of noise nuisance from nearby housing, might it not?

Depends who's singing.
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grahame
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« Reply #27 on: July 24, 2020, 01:25:49 pm »

From The Guardian

Quote
The heavily delayed Crossrail will not open as planned in summer 2021 because of delays caused by coronavirus, its board has said.

The troubled railway, from Berkshire to Essex via central London, was originally expected to open in December 2018 but repeated delays have pushed it back.

On Thursday evening, Crossrail said: “A programme of this scale and complexity was already challenging, the impact of Covid-19 has clearly made the existing pressures more acute.

“Due to a pause of physical activity on sites and significant constraints on ongoing work – time has been lost, only some of which can be recovered.

“The opening of the central section between Paddington and Abbey Wood next summer, as announced earlier this year prior to Covid-19, is not achievable.”

Crossrail did not provide a new date for when the railway line, to be called the Elizabeth line, was now expected to be open, but said that a “more comprehensive update” would be issued in due course.
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didcotdean
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« Reply #28 on: August 21, 2020, 04:17:43 pm »

Central portion now first half of 2022 on "best available programme information right now".

https://www.crossrail.co.uk/news/articles/update-following-crossrail-board-august-2020

Implies through running December 2022. Maybe ...
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IndustryInsider
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« Reply #29 on: August 21, 2020, 04:45:16 pm »

On this occasion at least a much more plausible reason.
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