2024 Stock Speculations

[BerkshireRails]

Signals would still need immunisation, co-actors provided where necessary, platform and tunnel gauging would also still be required.

Would the mainline section be easier for the 2024 stock, as there is already a lot of AC traction on the line? In addition, would NR be responsible for fitting co-actors if required for the NR part? When the time comes, will the Bakerloo Line use ETCS, the national standard signalling system?

Would the Jubilee Line receive a different sort of 2024 stock to match the Platform Edge Doors, or would the Platform Edge Doors be modified for the 2024 stock, which would require a closure of the Jubilee Line between Green Park and Stratford (London)?
Platform Edge Doors at London Waterloo Jubilee Line Extension.

 

[JamesT]

Would the Jubilee Line receive a different sort of 2024 stock to match the Platform Edge Doors, or would the Platform Edge Doors be modified for the 2024 stock, which would require a closure of the Jubilee Line between Green Park and Stratford (London)?

They are currently no plans to replace the Jubilee Line rolling stock. The 2024 stock is mostly replacing 1970s stock, by the time the 1995/96 stock is due then the 2024 may be out of production and a new model would be procured.
Either way, I suspect that modifying the PEDs would be the most likely route when new stock is eventually procured. Having a larger common fleet would outweigh having to shut a line for a few days to modify the doors.

 

[BerkshireRails]

They are currently no plans to replace the Jubilee Line rolling stock. The 2024 stock is mostly replacing 1970s stock, by the time the 1995/96 stock is due then the 2024 may be out of production and a new model would be procured.
Either way, I suspect that modifying the PEDs would be the most likely route when new stock is eventually procured. Having a larger common fleet would outweigh having to shut a line for a few days to modify the doors.

The plan was that the 2024 stock would replace the Central Line 92 stock & Waterloo & City Line class 482, which are only a few years younger than the 95s & 96s, so it would be a logical option to replace the 95s & 96s simultaneously.

 

[JonathanH]

The plan was that the 2024 stock would replace the Central Line 92 stock & Waterloo & City Line class 482, which are only a few years younger than the 95s & 96s, so it would be a logical option to replace the 95s & 96s simultaneously.

TfL are struggling to obtain funding to replace 72 stock on the Bakerloo Line. Expecting funding to be available to replace the 92, 95 and 96 stock in any near term timescale is somewhat unrealistic despite what may have been said in the past.

 

[61653 HTAFC]

They are currently no plans to replace the Jubilee Line rolling stock. The 2024 stock is mostly replacing 1970s stock, by the time the 1995/96 stock is due then the 2024 may be out of production and a new model would be procured.
Either way, I suspect that modifying the PEDs would be the most likely route when new stock is eventually procured. Having a larger common fleet would outweigh having to shut a line for a few days to modify the doors.

The problem with the PEDs is that on a line without them, new stock can (usually) have a phased introduction. If you have to modify the doors the changeover has to happen in one fell swoop. It'd probably take a fair bit longer than "a few days" to modify the doors at every station (and then to test and iron out any snags).

 

[BerkshireRails]

The problem with the PEDs is that on a line without them, new stock can (usually) have a phased introduction. If you have to modify the doors the changeover has to happen in one fell swoop. It'd probably take a fair bit longer than "a few days" to modify the doors at every station (and then to test and iron out any snags).

And it is the busiest section of the route, so you can't even have them on specific diagrams like Stratford to Kensal Green shuttles. It might be possible to cut peak frequency to 30tph to enable a 6tph new stock service to Green Park from Stanmore; however, it is much more complex.

 

[brad465]

The problem with the PEDs is that on a line without them, new stock can (usually) have a phased introduction. If you have to modify the doors the changeover has to happen in one fell swoop. It'd probably take a fair bit longer than "a few days" to modify the doors at every station (and then to test and iron out any snags).

It's for this reason I expect a new fleet will be one that has the same door arrangement as the current stock, whenever the time comes for replacement. If such a fleet is largely bespoke to the point of being notably more expensive, then the replacement would have to be combined with other fleet replacements (such as Northern and Central) to get a cheaper deal per unit.

The only way I can see a PED modification for a new fleet working is if you shut the JLE, reopen Charing X temporarily and have a near-normal service on the Charing X-Stanmore bit, while closing the extension to do the door alterations and test runs. One way perhaps of accelerating reopening the JLE is to prioritise stations with high patronage, then move the workforce to the lower patronage stations (like Southwark and Bermondsey), which remain closed until sorted out.

 

[BerkshireRails]

It's for this reason I expect a new fleet will be one that has the same door arrangement as the current stock, whenever the time comes for replacement. If such a fleet is largely bespoke to the point of being notably more expensive, then the replacement would have to be combined with other fleet replacements (such as Northern and Central) to get a cheaper deal per unit.

The only way I can see a PED modification for a new fleet working is if you shut the JLE, reopen Charing X temporarily and have a near-normal service on the Charing X-Stanmore bit, while closing the extension to do the door alterations and test runs. One way perhaps of accelerating reopening the JLE is to prioritise stations with high patronage, then move the workforce to the lower patronage stations (like Southwark and Bermondsey), which remain closed until sorted out.

It maybe possible to modify the centre platform at North Greenwich first so a North Greenwich to Stratford (London) Shuttle can be operated during the conversion with the new trains so that then there is still a rail link to the 02.