District Line D Stock final withdrawal

[londonboi]

9 remaining trains; six in service today.

Will remain until at least March.

9 remaining and all seems to be out tonight They are staying until May we have been told on the district line. Got a few cross transfer train operators coming over as well however all D stock training has now stopped. Had a D stock myself tonight as my train was running late I had a stock and crew which ment I ended up with 7032/7057 which should be back out tomorrow as that train is ment to be a S stock stabler at the depot it was ment to go to but is now a D stock stabler

 

[SpacePhoenix]

Which branches (if any) are now pure S stock?

 

[Dstock7080]

Which branches (if any) are now pure S stock?

High Street Kensington- Edgware Road.
--- old post above --- --- new post below ---

9 remaining and all seems to be out tonight

2 remained out of use yesterday.

 

[rebmcr]

Any word on why their stay of execution keeps being extended?

 

[Dstock7080]

Any word on why their stay of execution keeps being extended?

Currently 5 S7 are away for ATC fitment, this is likely to continue for sometime.
+1 train remains loaned to the Metropolitan Line.

 

[philthetube]

Currently 5 S7 are away for ATC fitment, this is likely to continue for sometime.
+1 train remains loaned to the Metropolitan Line.

That one is remaining with the Met, there has been an extra one made to replace it.

 

[Dstock7080]

That one is remaining with the Met, there has been an extra one made to replace it.

21327/28 is indeed staying on the MET.
I was referring to 21323/24 which is still temporally loaned to the MET but will be returning to the Circle/District/H&C as an S7 in due course.

 

[philthetube]

21327/28 is indeed staying on the MET.
I was referring to 21323/24 which is still temporally loaned to the MET but will be returning to the Circle/District/H&C as an S7 in due course.

I think that unit is staying with the Met, the Met is definitely ending up with one S7+1

 

[Dstock7080]

I think that unit is staying with the Met, the Met is definitely ending up with one S7+1

Correct S7+1 21327/28 is staying, as I've said.
they currently have 2 S7+1 on the MET, 21323/24 is coming back.

 

[Blindtraveler]

IMO it would have made sense to build another 8 units to make it 200 in total of all S Stock types.

 

[rebmcr]

IMO it would have made sense to build another 8 units to make it 200 in total of all S Stock types.

Why 200?

 

[Deepgreen]

Why 200?

We tend not to work in neat round numbers where trains costing several £m apiece to buy (let alone maintain) are concerned!

 

[Blindtraveler]

Extra capacity, given Londons population and visiter numbers keep growing.

 

[cactustwirly]

Extra capacity, given Londons population and visiter numbers keep growing.

To put where exactly?
TfL isn't exactly finacially healthy, and I doubt there's the depot capacity to store them.

 

[fgwrich]

7070 Was out and about yesterday for anyone interested. Picked up it on an Upminster - Ealing Broadway service last night, ended up going all the way out to Ealing from Temple just for a bit of nostalgia. Was told that they're stay of execution is now April.

 

[jopsuk]

Extra capacity, given Londons population and visiter numbers keep growing.

Never mind the depot capacity, the fleet that has been ordered is based on ambitious frequency plans post re-signalling. There definitely isn't now, and won't be in the future, capacity for any more trains through Baker Street or Earls Court.

 

[SpacePhoenix]

There definitely isn't now, and won't be in the future, capacity for any more trains through Baker Street or Earls Court.

Is Earls Court the worst of them two for a bottleneck restricting capacity?

 

[Tim R-T-C]

Hung around a bit on the District earlier this month when I was in London, but no D-Stock sadly.
I'm back down in May, wonder if they will still be around?

 

[Nym]

Hung around a bit on the District earlier this month when I was in London, but no D-Stock sadly.
I'm back down in May, wonder if they will still be around?

There will still be the two RATs operating (hopefully) by then that are made from D Stock, but given the rather extreme number of changes made to it, and the fact you won't be able to ride on it, it may not count.

 

[Domh245]

There will still be the two RATs operating (hopefully) by then that are made from D Stock, but given the rather extreme number of changes made to it, and the fact you won't be able to ride on it, it may not count.

I wouldn't think that they would be operating in May though, even if they both exist. I can't imagine many railhead adhesion issues at that time of year

 

[jopsuk]

Is Earls Court the worst of them two for a bottleneck restricting capacity?

I'm not sure which is "worse", but all District line services go through Earls Court, all H&C/Circle/Met go through or terminate (Met) at Baker Street.

 

[Techniquest]

I'd say Baker Street is worse for the flat crossing to the east of the station. Mind you Circle trains must cause issues on the east side of the triangle at Earls Court...

 

[bramling]

Is Earls Court the worst of them two for a bottleneck restricting capacity?

The whole "city" section from Baker Street to Aldgate is a bottleneck, both directions. It can barely cope with the current *off-peak* service, with most trips nowadays being "stick to stick". The problem is simply that trains enter each end of the section rather erratically as there are so many opportunities for trains to be delayed on route. For example, if a City-bound Met train arrives late at Baker Street, it will probably clash with a Circle or Hammersmith train. One of them now needs to be found a path that potentially doesn't exist. And this is all before we consider constraints and delays as trains are routed through the various flat junctions.

 

[Nym]

I wouldn't think that they would be operating in May though, even if they both exist. I can't imagine many railhead adhesion issues at that time of year

Operator training perhaps?

 

[Domh245]

Operator training perhaps?

Good point - are the RATs operated by Metropolitan line T/Ops?

 

[Nym]

Good point - are the RATs operated by Metropolitan line T/Ops?

Last I knew, all rail adhesion trains are operated by test train operators.

 

[Dstock7080]

7034+7513 dispatched from Ealing Common, 8 remain.

those being:
7012+7095
7016+7533
7018+7007
7030+7535
7032+7057
7046+7503
7070+7115
7526+7037

 

[jopsuk]

The whole "city" section from Baker Street to Aldgate is a bottleneck, both directions. It can barely cope with the current *off-peak* service, with most trips nowadays being "stick to stick". The problem is simply that trains enter each end of the section rather erratically as there are so many opportunities for trains to be delayed on route. For example, if a City-bound Met train arrives late at Baker Street, it will probably clash with a Circle or Hammersmith train. One of them now needs to be found a path that potentially doesn't exist. And this is all before we consider constraints and delays as trains are routed through the various flat junctions.

Unfortunately impossible things that would improve Sub Surface Line capacity:
Reaarange Baker Street Met platforms to be like Aldgate and Edgeware Road with the terminating platforms in the middle
Grade separate Baker Street junction
Grade separate the Aldgate/Aldgate East/Minories junction triangle
Grade separate and rearrange to have terminating trains in the middle at High Street Kensington
Grade separate Gloucester Road junction
Grade separate Praed Street junction

Bonus points if your multi-billion pound rebuilding project under protected buildings and congested streets can furnish the terminating points with reversing sidings for optimum capacity and to make things simpler for passengers

 

[ijmad]

Unfortunately impossible things that would improve Sub Surface Line capacity:
Reaarange Baker Street Met platforms to be like Aldgate and Edgeware Road with the terminating platforms in the middle
Grade separate Baker Street junction
Grade separate the Aldgate/Aldgate East/Minories junction triangle
Grade separate and rearrange to have terminating trains in the middle at High Street Kensington
Grade separate Gloucester Road junction
Grade separate Praed Street junction

Bonus points if your multi-billion pound rebuilding project under protected buildings and congested streets can furnish the terminating points with reversing sidings for optimum capacity and to make things simpler for passengers

Automatic train operation run by computer, centrally, will solve a lot of problems without having to rearrange junctions. The computer always knows where each train is, so if one train is late, it can work on the network as a whole to slow things down or speed things up so paths still 'slot in' properly at flat junctions.

Although it's now going to be 2021 to 2023 before the resignalling is finished, once it has, they will be looking to run 32 tph between Baker Street and Liverpool Street, compared to 27/28tph at the moment, so around 20% extra. It may even be possible to go up to 34 or 36 tph (like the Victoria Line) but this is where it starts to get more difficult with the Circle/Met/H&C as it does take some time to get over a flat junction.

That said, if the computer can time things to the second, who knows.

 

[Peter Mugridge]

7034+7513 dispatched from Ealing Common, 8 remain.

those being:
7012+7095
7016+7533
7018+7007
7030+7535
7032+7057
7046+7503
7070+7115
7526+7037

Today I was on one D Stock from Blackfriars to Tower Hill and two consecutive D Stock workings passed me in the opposite direction.