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Basil Jet[_4_] January 10th 16 11:38 AM

Underground, Overground, Wemmerberley
 
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central London
with only 3tph. But what to do with it?

You could build a curve from Wembley Central to Sudbury & Harrow Road.
The DC lines are on the west side here, so a flat junction would be fine
and I don't think any demolition would be required. The Marylebone Line
would be expensively interfered with as the new line went under it or
budged it apart and came up in the middle. The Suds and Northolt Park
would become Overground only with a train from Euston every twenty
minutes terminating at a new platform at South Ruislip. The existing
Marylebone trains which semi-randomly call at the stations would cease
to call there and would give an increased service at Wembley Stadium and
South Ruislip instead.

The doubling of frequency of Overground service from Euston to Wembley
Central would probably mean the end of Stonebridge Park terminators on
the Bakerloo, leaving an off-peak service of 6tph LU from Harrow and
Wealdstone, 3tph LO from Watford and 3tph LO joining at Wembley Central.

[email protected] January 10th 16 02:15 PM

Underground, Overground, Wemmerberley
 
In article , (Basil Jet)
wrote:

I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central
London with only 3tph. But what to do with it?


Surely the real pressure is to turf the suburban services out to provide
more mainline and HS2 capacity?

You could build a curve from Wembley Central to Sudbury & Harrow
Road. The DC lines are on the west side here, so a flat junction
would be fine and I don't think any demolition would be required. The
Marylebone Line would be expensively interfered with as the new line
went under it or budged it apart and came up in the middle. The Suds
and Northolt Park would become Overground only with a train from
Euston every twenty minutes terminating at a new platform at South
Ruislip. The existing Marylebone trains which semi-randomly call at
the stations would cease to call there and would give an increased
service at Wembley Stadium and South Ruislip instead.


Getting between the Marylebone tracks would be the hard bit because you'd
need to run at local street level or else have a higher embankment and/or
viaduct. It looks practical and modestly priced if you just have a flat
junction, I agree.

The doubling of frequency of Overground service from Euston to
Wembley Central would probably mean the end of Stonebridge Park
terminators on the Bakerloo, leaving an off-peak service of 6tph LU
from Harrow and Wealdstone, 3tph LO from Watford and 3tph LO joining
at Wembley Central.


A still modest 12tph though.

--
Colin Rosenstiel

Recliner[_3_] January 10th 16 02:42 PM

Underground, Overground, Wemmerberley
 
Basil Jet wrote:
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central London
with only 3tph. But what to do with it?

You could build a curve from Wembley Central to Sudbury & Harrow Road.
The DC lines are on the west side here, so a flat junction would be fine
and I don't think any demolition would be required. The Marylebone Line
would be expensively interfered with as the new line went under it or
budged it apart and came up in the middle. The Suds and Northolt Park
would become Overground only with a train from Euston every twenty
minutes terminating at a new platform at South Ruislip. The existing
Marylebone trains which semi-randomly call at the stations would cease
to call there and would give an increased service at Wembley Stadium and
South Ruislip instead.

The doubling of frequency of Overground service from Euston to Wembley
Central would probably mean the end of Stonebridge Park terminators on
the Bakerloo, leaving an off-peak service of 6tph LU from Harrow and
Wealdstone, 3tph LO from Watford and 3tph LO joining at Wembley Central.


I like it personally, but is there room in the South Harrow tunnel for four
tracks? I don't believe that the line was ever four-tracked except at some
stations where there used to be platform loops. Those stations would need
rebuilding. Some of the two-track bridges would also need rebuilding, such
as the expensive new one over the A312. There might also be some property
loss for the chord near Camelot Road.

I suppose the other problem is that that the Chiltern Line will be badly
disrupted for months during the construction, and the number of
beneficiaries isn't large. And most of those already have the option of
using the Piccadilly or Central lines, so the incremental benefit, though
welcome, is quite modest.

Guy Gorton[_3_] January 10th 16 05:34 PM

Underground, Overground, Wemmerberley
 
On Sun, 10 Jan 2016 15:42:03 -0000 (UTC), Recliner
wrote:

Basil Jet wrote:
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central London
with only 3tph. But what to do with it?

You could build a curve from Wembley Central to Sudbury & Harrow Road.
The DC lines are on the west side here, so a flat junction would be fine
and I don't think any demolition would be required. The Marylebone Line
would be expensively interfered with as the new line went under it or
budged it apart and came up in the middle. The Suds and Northolt Park
would become Overground only with a train from Euston every twenty
minutes terminating at a new platform at South Ruislip. The existing
Marylebone trains which semi-randomly call at the stations would cease
to call there and would give an increased service at Wembley Stadium and
South Ruislip instead.

The doubling of frequency of Overground service from Euston to Wembley
Central would probably mean the end of Stonebridge Park terminators on
the Bakerloo, leaving an off-peak service of 6tph LU from Harrow and
Wealdstone, 3tph LO from Watford and 3tph LO joining at Wembley Central.


I like it personally, but is there room in the South Harrow tunnel for four
tracks? I don't believe that the line was ever four-tracked except at some
stations where there used to be platform loops. Those stations would need
rebuilding. Some of the two-track bridges would also need rebuilding, such
as the expensive new one over the A312. There might also be some property
loss for the chord near Camelot Road.

The South Harrow tunnel is cut-and-cover. Some of Newton's photos
show it being built with no spare space.

I suppose the other problem is that that the Chiltern Line will be badly
disrupted for months during the construction, and the number of
beneficiaries isn't large. And most of those already have the option of
using the Piccadilly or Central lines, so the incremental benefit, though
welcome, is quite modest.


Chiltern line users would be very cross about any disruption!

Guy Gorton

Basil Jet[_4_] January 11th 16 07:26 PM

Underground, Overground, Wemmerberley
 
On 2016\01\10 15:42, Recliner wrote:
Basil Jet wrote:
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central London
with only 3tph. But what to do with it?

You could build a curve from Wembley Central to Sudbury & Harrow Road.
The DC lines are on the west side here, so a flat junction would be fine
and I don't think any demolition would be required. The Marylebone Line
would be expensively interfered with as the new line went under it or
budged it apart and came up in the middle. The Suds and Northolt Park
would become Overground only with a train from Euston every twenty
minutes terminating at a new platform at South Ruislip. The existing
Marylebone trains which semi-randomly call at the stations would cease
to call there and would give an increased service at Wembley Stadium and
South Ruislip instead.

The doubling of frequency of Overground service from Euston to Wembley
Central would probably mean the end of Stonebridge Park terminators on
the Bakerloo, leaving an off-peak service of 6tph LU from Harrow and
Wealdstone, 3tph LO from Watford and 3tph LO joining at Wembley Central.


I like it personally, but is there room in the South Harrow tunnel for four
tracks? I don't believe that the line was ever four-tracked except at some
stations where there used to be platform loops. Those stations would need
rebuilding. Some of the two-track bridges would also need rebuilding, such
as the expensive new one over the A312.


I wasn't thinking of a fourth or third track. Can't a train every twenty
minutes stopping at three adjacent stations share track with the Chilterns?

There might also be some property
loss for the chord near Camelot Road.


Lancelot Road... a curve of the same radius as the curves to Cannon
Street Station would require no demolition IMO, but it would block
Lancelot Road and alternative access to the top half of Lancelot Road
would have to be found, maybe from Rayners Close.

I suppose the other problem is that that the Chiltern Line will be badly
disrupted for months during the construction, and the number of
beneficiaries isn't large. And most of those already have the option of
using the Piccadilly or Central lines, so the incremental benefit, though
welcome, is quite modest.


I'm writing cheques the mayor isn't going to cash. Unless someone
decides to build flats on Stonefield Way and Bradfield Road, which
actually isn't at all unlikely. Who would have thought a couple of years
ago that there would be a "need" for lots of long trains at New
Southgate, of all places?

Recliner[_3_] January 11th 16 08:55 PM

Underground, Overground, Wemmerberley
 
Basil Jet wrote:
On 2016\01\10 15:42, Recliner wrote:
Basil Jet wrote:
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central London
with only 3tph. But what to do with it?

You could build a curve from Wembley Central to Sudbury & Harrow Road.
The DC lines are on the west side here, so a flat junction would be fine
and I don't think any demolition would be required. The Marylebone Line
would be expensively interfered with as the new line went under it or
budged it apart and came up in the middle. The Suds and Northolt Park
would become Overground only with a train from Euston every twenty
minutes terminating at a new platform at South Ruislip. The existing
Marylebone trains which semi-randomly call at the stations would cease
to call there and would give an increased service at Wembley Stadium and
South Ruislip instead.

The doubling of frequency of Overground service from Euston to Wembley
Central would probably mean the end of Stonebridge Park terminators on
the Bakerloo, leaving an off-peak service of 6tph LU from Harrow and
Wealdstone, 3tph LO from Watford and 3tph LO joining at Wembley Central.


I like it personally, but is there room in the South Harrow tunnel for four
tracks? I don't believe that the line was ever four-tracked except at some
stations where there used to be platform loops. Those stations would need
rebuilding. Some of the two-track bridges would also need rebuilding, such
as the expensive new one over the A312.


I wasn't thinking of a fourth or third track. Can't a train every twenty
minutes stopping at three adjacent stations share track with the Chilterns?


Chiltern's argument for having so few trains stopping at those stations is
that they get in the way of the far more important 100mph non-stop services
(up to 8tph) on the same tracks. At the very least, you'd probably have to
reinstate some of the platform loops that were removed when the route was
modernised, so that the fast trains could overtake the stoppers. But that
introduces more points and signals, which were removed 25 years ago in the
interests of reliability.


Basil Jet[_4_] January 11th 16 10:05 PM

Underground, Overground, Wemmerberley
 
On 2016\01\11 21:55, Recliner wrote:
Basil Jet wrote:
On 2016\01\10 15:42, Recliner wrote:
Basil Jet wrote:
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central London
with only 3tph. But what to do with it?

You could build a curve from Wembley Central to Sudbury & Harrow Road.
The DC lines are on the west side here, so a flat junction would be fine
and I don't think any demolition would be required. The Marylebone Line
would be expensively interfered with as the new line went under it or
budged it apart and came up in the middle. The Suds and Northolt Park
would become Overground only with a train from Euston every twenty
minutes terminating at a new platform at South Ruislip. The existing
Marylebone trains which semi-randomly call at the stations would cease
to call there and would give an increased service at Wembley Stadium and
South Ruislip instead.

The doubling of frequency of Overground service from Euston to Wembley
Central would probably mean the end of Stonebridge Park terminators on
the Bakerloo, leaving an off-peak service of 6tph LU from Harrow and
Wealdstone, 3tph LO from Watford and 3tph LO joining at Wembley Central.

I like it personally, but is there room in the South Harrow tunnel for four
tracks? I don't believe that the line was ever four-tracked except at some
stations where there used to be platform loops. Those stations would need
rebuilding. Some of the two-track bridges would also need rebuilding, such
as the expensive new one over the A312.


I wasn't thinking of a fourth or third track. Can't a train every twenty
minutes stopping at three adjacent stations share track with the Chilterns?


Chiltern's argument for having so few trains stopping at those stations is
that they get in the way of the far more important 100mph non-stop services
(up to 8tph) on the same tracks. At the very least, you'd probably have to
reinstate some of the platform loops that were removed when the route was
modernised, so that the fast trains could overtake the stoppers.


.... which would have to have 4 minute dwell times to let the fast train
go from 2 minutes behind to 2 minutes in front. That's worse than
Thameslink! Surely part of the problem is that diesels are distinctly
unwhippetlike... an electric overground service wouldn't present quite
the same problem.


Recliner[_3_] January 11th 16 10:23 PM

Underground, Overground, Wemmerberley
 
Basil Jet wrote:
On 2016\01\11 21:55, Recliner wrote:
Basil Jet wrote:
On 2016\01\10 15:42, Recliner wrote:
Basil Jet wrote:
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central London
with only 3tph. But what to do with it?

You could build a curve from Wembley Central to Sudbury & Harrow Road.
The DC lines are on the west side here, so a flat junction would be fine
and I don't think any demolition would be required. The Marylebone Line
would be expensively interfered with as the new line went under it or
budged it apart and came up in the middle. The Suds and Northolt Park
would become Overground only with a train from Euston every twenty
minutes terminating at a new platform at South Ruislip. The existing
Marylebone trains which semi-randomly call at the stations would cease
to call there and would give an increased service at Wembley Stadium and
South Ruislip instead.

The doubling of frequency of Overground service from Euston to Wembley
Central would probably mean the end of Stonebridge Park terminators on
the Bakerloo, leaving an off-peak service of 6tph LU from Harrow and
Wealdstone, 3tph LO from Watford and 3tph LO joining at Wembley Central.

I like it personally, but is there room in the South Harrow tunnel for four
tracks? I don't believe that the line was ever four-tracked except at some
stations where there used to be platform loops. Those stations would need
rebuilding. Some of the two-track bridges would also need rebuilding, such
as the expensive new one over the A312.

I wasn't thinking of a fourth or third track. Can't a train every twenty
minutes stopping at three adjacent stations share track with the Chilterns?


Chiltern's argument for having so few trains stopping at those stations is
that they get in the way of the far more important 100mph non-stop services
(up to 8tph) on the same tracks. At the very least, you'd probably have to
reinstate some of the platform loops that were removed when the route was
modernised, so that the fast trains could overtake the stoppers.


... which would have to have 4 minute dwell times to let the fast train
go from 2 minutes behind to 2 minutes in front. That's worse than
Thameslink! Surely part of the problem is that diesels are distinctly
unwhippetlike... an electric overground service wouldn't present quite
the same problem.


True, the electrics do accelerate much faster, but the average speed over
that section would still be pretty low. You wouldn't need a full four
minute dwell time, as the stoppers will be slowing down and accelerating in
the loops. But there certainly would be an extended dwell time while the
stopper was waiting to be overtaken. Even worse, it might be overtaken by a
flight of 2-3 fast trains.

Also, down LO trains wanting to join the Chiltern line would probably have
to wait for a flight of fast trains to pass at the Sudbury Town junction.
That's why I assumed you meant that the Chiltern would have to be
four-tracked on the shared section.

It all seems like a very expensive way to provide an extra two trains an
hour to three suburban stations that already have an LU alternative.


Basil Jet[_4_] January 11th 16 11:57 PM

Underground, Overground, Wemmerberley
 
On 2016\01\11 23:23, Recliner wrote:
Basil Jet wrote:
On 2016\01\11 21:55, Recliner wrote:
Basil Jet wrote:
On 2016\01\10 15:42, Recliner wrote:
Basil Jet wrote:
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central London
with only 3tph. But what to do with it?

You could build a curve from Wembley Central to Sudbury & Harrow Road.
The DC lines are on the west side here, so a flat junction would be fine
and I don't think any demolition would be required. The Marylebone Line
would be expensively interfered with as the new line went under it or
budged it apart and came up in the middle. The Suds and Northolt Park
would become Overground only with a train from Euston every twenty
minutes terminating at a new platform at South Ruislip. The existing
Marylebone trains which semi-randomly call at the stations would cease
to call there and would give an increased service at Wembley Stadium and
South Ruislip instead.

The doubling of frequency of Overground service from Euston to Wembley
Central would probably mean the end of Stonebridge Park terminators on
the Bakerloo, leaving an off-peak service of 6tph LU from Harrow and
Wealdstone, 3tph LO from Watford and 3tph LO joining at Wembley Central.

I like it personally, but is there room in the South Harrow tunnel for four
tracks? I don't believe that the line was ever four-tracked except at some
stations where there used to be platform loops. Those stations would need
rebuilding. Some of the two-track bridges would also need rebuilding, such
as the expensive new one over the A312.

I wasn't thinking of a fourth or third track. Can't a train every twenty
minutes stopping at three adjacent stations share track with the Chilterns?

Chiltern's argument for having so few trains stopping at those stations is
that they get in the way of the far more important 100mph non-stop services
(up to 8tph) on the same tracks. At the very least, you'd probably have to
reinstate some of the platform loops that were removed when the route was
modernised, so that the fast trains could overtake the stoppers.


... which would have to have 4 minute dwell times to let the fast train
go from 2 minutes behind to 2 minutes in front. That's worse than
Thameslink! Surely part of the problem is that diesels are distinctly
unwhippetlike... an electric overground service wouldn't present quite
the same problem.


True, the electrics do accelerate much faster, but the average speed over
that section would still be pretty low. You wouldn't need a full four
minute dwell time, as the stoppers will be slowing down and accelerating in
the loops. But there certainly would be an extended dwell time while the
stopper was waiting to be overtaken. Even worse, it might be overtaken by a
flight of 2-3 fast trains.

Also, down LO trains wanting to join the Chiltern line would probably have
to wait for a flight of fast trains to pass at the Sudbury Town junction.
That's why I assumed you meant that the Chiltern would have to be
four-tracked on the shared section.

It all seems like a very expensive way to provide an extra two trains an
hour to three suburban stations that already have an LU alternative.


I can't argue with any of that!

Basil Jet[_4_] January 12th 16 09:05 PM

Underground, Overground, Wemmerberley
 
On 2016\01\12 00:57, Basil Jet wrote:

I can't argue with any of that!


Another idea... the Greenford Branch is set to become a shuttle from
West Ealing in 2017. Although the frequency will go up from 2tph to
4tph, the curtailment could kill the line off.

With the demolition of parts of two light industrial premises and the
construction of a new curve by North Acton and another curve from
Willesden Junction High Level to Kensal Green, they could run 2tph from
West Ealing - DG - CBP - South Greenford - new platform at North Acton -
Willesden Junction High Level - KG - QP - KHR - SH - Euston. The other
2tph would run West Ealing - Greenford.

Recliner[_3_] January 12th 16 09:40 PM

Underground, Overground, Wemmerberley
 
Basil Jet wrote:
On 2016\01\12 00:57, Basil Jet wrote:

I can't argue with any of that!


Another idea... the Greenford Branch is set to become a shuttle from
West Ealing in 2017. Although the frequency will go up from 2tph to
4tph, the curtailment could kill the line off.

With the demolition of parts of two light industrial premises and the
construction of a new curve by North Acton and another curve from
Willesden Junction High Level to Kensal Green, they could run 2tph from
West Ealing - DG - CBP - South Greenford - new platform at North Acton -
Willesden Junction High Level - KG - QP - KHR - SH - Euston. The other
2tph would run West Ealing - Greenford.


Well, that's certainly a creative way to link that orphan shuttle to LO,
where it probably does belong. But it would also be quite expensive,
involving two new chords, some redoubled track and electrification. Would a
five car 378 fit in the Greenford and West Ealing bay platforms? And is
there much demand for a 2 tph service from the Greenford route to Euston?

Wouldn't most potential pax prefer to change to the frequent Central line
at Greenford to get into town more quickly? It does seem like another
solution in search of a problem.


Basil Jet[_4_] January 12th 16 10:36 PM

Underground, Overground, Wemmerberley
 
On 2016\01\12 22:40, Recliner wrote:
Basil Jet wrote:

Another idea... the Greenford Branch is set to become a shuttle from
West Ealing in 2017. Although the frequency will go up from 2tph to
4tph, the curtailment could kill the line off.

With the demolition of parts of two light industrial premises and the
construction of a new curve by North Acton and another curve from
Willesden Junction High Level to Kensal Green, they could run 2tph from
West Ealing - DG - CBP - South Greenford - new platform at North Acton -
Willesden Junction High Level - KG - QP - KHR - SH - Euston. The other
2tph would run West Ealing - Greenford.


Well, that's certainly a creative way to link that orphan shuttle to LO,
where it probably does belong. But it would also be quite expensive,
involving two new chords, some redoubled track and electrification.


It could be a job for IPEMU. The single track section from North Acton
to the Piccadilly Line bridge is only a mile long and would be no
problem for a 2tph service, or even a 4tph one. The Greenford East Curve
is also single but is even shorter.

Would a
five car 378 fit in the Greenford and West Ealing bay platforms? And is
there much demand for a 2 tph service from the Greenford route to Euston?


There's demand from everywhere to Central London. There is a place for
shuttles, particularly where the mainline is full, but trains to Central
London are better if the track is there, and here it mostly is.

Wouldn't most potential pax prefer to change to the frequent Central line
at Greenford to get into town more quickly?


More quickly? From South Greenford to Oxford Circus is 14 stops with 1
change at Greenford, or 9 stops with 1 change at Euston.
From South Greenford to Liverpool Street is 20 stops with 1 change at
Greenford, or 12 stops with 1 change at Euston.

It does seem like another solution in search of a problem.


The Greenford branch being cut off from Paddington is the problem.
Connecting it to Euston is the solution.

Recliner[_3_] January 12th 16 11:22 PM

Underground, Overground, Wemmerberley
 
Basil Jet wrote:
On 2016\01\12 22:40, Recliner wrote:
Basil Jet wrote:

Another idea... the Greenford Branch is set to become a shuttle from
West Ealing in 2017. Although the frequency will go up from 2tph to
4tph, the curtailment could kill the line off.

With the demolition of parts of two light industrial premises and the
construction of a new curve by North Acton and another curve from
Willesden Junction High Level to Kensal Green, they could run 2tph from
West Ealing - DG - CBP - South Greenford - new platform at North Acton -
Willesden Junction High Level - KG - QP - KHR - SH - Euston. The other
2tph would run West Ealing - Greenford.


Well, that's certainly a creative way to link that orphan shuttle to LO,
where it probably does belong. But it would also be quite expensive,
involving two new chords, some redoubled track and electrification.


It could be a job for IPEMU. The single track section from North Acton
to the Piccadilly Line bridge is only a mile long and would be no
problem for a 2tph service, or even a 4tph one. The Greenford East Curve
is also single but is even shorter.

Would a
five car 378 fit in the Greenford and West Ealing bay platforms? And is
there much demand for a 2 tph service from the Greenford route to Euston?


There's demand from everywhere to Central London. There is a place for
shuttles, particularly where the mainline is full, but trains to Central
London are better if the track is there, and here it mostly is.

Wouldn't most potential pax prefer to change to the frequent Central line
at Greenford to get into town more quickly?


More quickly? From South Greenford to Oxford Circus is 14 stops with 1
change at Greenford, or 9 stops with 1 change at Euston.
From South Greenford to Liverpool Street is 20 stops with 1 change at
Greenford, or 12 stops with 1 change at Euston.


Yes, but the stops are further apart, and the distance greater, so run
times will be similar or longer. The Central line is a lot more frequent,
even if it isn't actually quicker, and the cross-platform interchange at
Greenford is incredibly convenient compared to Euston.


It does seem like another solution in search of a problem.


The Greenford branch being cut off from Paddington is the problem.
Connecting it to Euston is the solution.


Well, the connections at West Ealing and Greenford aren't all that bad,
though of course worse than having a direct, if infrequent, train. Most pax
will be better off with a 4 tph shuttle than 2 tph direct to Paddington.



Basil Jet[_4_] January 13th 16 12:33 AM

Underground, Overground, Wemmerberley
 
On 2016\01\13 00:22, Recliner wrote:
Basil Jet wrote:
On 2016\01\12 22:40, Recliner wrote:
Basil Jet wrote:

Another idea... the Greenford Branch is set to become a shuttle from
West Ealing in 2017. Although the frequency will go up from 2tph to
4tph, the curtailment could kill the line off.

With the demolition of parts of two light industrial premises and the
construction of a new curve by North Acton and another curve from
Willesden Junction High Level to Kensal Green, they could run 2tph from
West Ealing - DG - CBP - South Greenford - new platform at North Acton -
Willesden Junction High Level - KG - QP - KHR - SH - Euston. The other
2tph would run West Ealing - Greenford.


Well, that's certainly a creative way to link that orphan shuttle to LO,
where it probably does belong. But it would also be quite expensive,
involving two new chords, some redoubled track and electrification.


It could be a job for IPEMU. The single track section from North Acton
to the Piccadilly Line bridge is only a mile long and would be no
problem for a 2tph service, or even a 4tph one. The Greenford East Curve
is also single but is even shorter.

Would a
five car 378 fit in the Greenford and West Ealing bay platforms? And is
there much demand for a 2 tph service from the Greenford route to Euston?


There's demand from everywhere to Central London. There is a place for
shuttles, particularly where the mainline is full, but trains to Central
London are better if the track is there, and here it mostly is.

Wouldn't most potential pax prefer to change to the frequent Central line
at Greenford to get into town more quickly?


More quickly? From South Greenford to Oxford Circus is 14 stops with 1
change at Greenford, or 9 stops with 1 change at Euston.
From South Greenford to Liverpool Street is 20 stops with 1 change at
Greenford, or 12 stops with 1 change at Euston.


I shouldn't have picked a destination on Crossrail... South Greenford to
Liverpool Street is 10 stops with 1 change at West Ealing.


Yes, but the stops are further apart, and the distance greater, so run
times will be similar or longer. The Central line is a lot more frequent,
even if it isn't actually quicker, and the cross-platform interchange at
Greenford is incredibly convenient compared to Euston.


It does seem like another solution in search of a problem.


The Greenford branch being cut off from Paddington is the problem.
Connecting it to Euston is the solution.


Well, the connections at West Ealing and Greenford aren't all that bad,
though of course worse than having a direct, if infrequent, train. Most pax
will be better off with a 4 tph shuttle than 2 tph direct to Paddington.


You're overstating the indirect aspect. Look at
https://www.whatdotheyknow.com/reque...ions%20Map.pdf
and use a string or earphone cable to draw a straight line from North
Acton to, say, Kings Cross.

Recliner[_3_] January 14th 16 11:50 AM

Underground, Overground, Wemmerberley
 
On Wed, 13 Jan 2016 01:33:11 +0000, Basil Jet
wrote:

On 2016\01\13 00:22, Recliner wrote:
Basil Jet wrote:
On 2016\01\12 22:40, Recliner wrote:
Basil Jet wrote:

Another idea... the Greenford Branch is set to become a shuttle from
West Ealing in 2017. Although the frequency will go up from 2tph to
4tph, the curtailment could kill the line off.

With the demolition of parts of two light industrial premises and the
construction of a new curve by North Acton and another curve from
Willesden Junction High Level to Kensal Green, they could run 2tph from
West Ealing - DG - CBP - South Greenford - new platform at North Acton -
Willesden Junction High Level - KG - QP - KHR - SH - Euston. The other
2tph would run West Ealing - Greenford.


Well, that's certainly a creative way to link that orphan shuttle to LO,
where it probably does belong. But it would also be quite expensive,
involving two new chords, some redoubled track and electrification.

It could be a job for IPEMU. The single track section from North Acton
to the Piccadilly Line bridge is only a mile long and would be no
problem for a 2tph service, or even a 4tph one. The Greenford East Curve
is also single but is even shorter.

Would a
five car 378 fit in the Greenford and West Ealing bay platforms? And is
there much demand for a 2 tph service from the Greenford route to Euston?

There's demand from everywhere to Central London. There is a place for
shuttles, particularly where the mainline is full, but trains to Central
London are better if the track is there, and here it mostly is.

Wouldn't most potential pax prefer to change to the frequent Central line
at Greenford to get into town more quickly?

More quickly? From South Greenford to Oxford Circus is 14 stops with 1
change at Greenford, or 9 stops with 1 change at Euston.
From South Greenford to Liverpool Street is 20 stops with 1 change at
Greenford, or 12 stops with 1 change at Euston.


I shouldn't have picked a destination on Crossrail... South Greenford to
Liverpool Street is 10 stops with 1 change at West Ealing.


Yes, but the stops are further apart, and the distance greater, so run
times will be similar or longer. The Central line is a lot more frequent,
even if it isn't actually quicker, and the cross-platform interchange at
Greenford is incredibly convenient compared to Euston.


It does seem like another solution in search of a problem.

The Greenford branch being cut off from Paddington is the problem.
Connecting it to Euston is the solution.


Well, the connections at West Ealing and Greenford aren't all that bad,
though of course worse than having a direct, if infrequent, train. Most pax
will be better off with a 4 tph shuttle than 2 tph direct to Paddington.


You're overstating the indirect aspect. Look at
https://www.whatdotheyknow.com/reque...ions%20Map.pdf
and use a string or earphone cable to draw a straight line from North
Acton to, say, Kings Cross.


Which is an interesting point. Thanks to Crossrail, the Greenford line
customers do lose their half hourly direct service to Paddington. But,
with one change, they get a more frequent and faster service to many
more destinations, some new, some already available via the Central
Line (but with more stops). The change in the up direction will be
cross platform, though not so easy in the down direction.

Robin9 January 14th 16 04:26 PM

Is diverting the service away from Euston via Camden Road
to wherever a feasible option?

Recliner[_3_] January 15th 16 11:31 AM

Underground, Overground, Wemmerberley
 
On Thu, 14 Jan 2016 18:26:44 +0100, Robin9
wrote:
[color=blue][i]

;153065 Wrote:
In article , (Basil
Jet)
wrote:
-
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central
London with only 3tph. But what to do with it?-

Surely the real pressure is to turf the suburban services out to provide

more mainline and HS2 capacity?

Colin Rosenstiel


Is diverting the service away from Euston via Camden Road
to wherever a feasible option?


Wouldn't it be easier to simply replace the LO service to Watford
Junction with the Bakerloo? It might have to wait till the Bakerloo
gets new stock in a few years time, of course.

Robin9 January 15th 16 04:40 PM

Certainly it would be simpler but would it be practicable?
I assume the Bakerloo Line is as overcrowded during rush
hour as any other Underground service. Would adding to it
the people who currently travel on the Overground service to
Euston be workable?

We come back to the beginning of this thread: the DC lines to
Euston are an under-utilised asset. Abandoning the service does
not address that issue.

Recliner[_3_] January 15th 16 08:50 PM

Underground, Overground, Wemmerberley
 
Robin9 wrote:[color=blue][i]

'Recliner[_3_ Wrote:
;153191']On Thu, 14 Jan 2016 18:26:44 +0100, Robin9
wrote:
-

;153065 Wrote: -
In article ,
(Basil
Jet)
wrote:
-
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central
London with only 3tph. But what to do with it?-

Surely the real pressure is to turf the suburban services out to
provide

more mainline and HS2 capacity?

Colin Rosenstiel-

Is diverting the service away from Euston via Camden Road
to wherever a feasible option?-

Wouldn't it be easier to simply replace the LO service to Watford
Junction with the Bakerloo? It might have to wait till the Bakerloo
gets new stock in a few years time, of course.


Certainly it would be simpler but would it be practicable?
I assume the Bakerloo Line is as overcrowded during rush
hour as any other Underground service. Would adding to it
the people who currently travel on the Overground service to
Euston be workable?


I thought the Bakerloo was the least (over) crowded of the LU lines?


We came back to the beginning of this thread: the DC lines to
Euston are an under-utilised asset. Abandoning the service does
address that issue.


I assume you meant "does NOT address"? That's true, but it does free up
the LO Euston platforms for other services. On the other hand, a more
intensive LO service to make better use of the track pair would need more
Euston platforms, which will be in short supply during the HS2 rebuilding.



Basil Jet[_4_] January 15th 16 11:09 PM

Underground, Overground, Wemmerberley
 
On 2016\01\15 21:50, Recliner wrote:[color=blue][i]
Robin9 wrote:

'Recliner[_3_ Wrote:
;153191']On Thu, 14 Jan 2016 18:26:44 +0100, Robin9
wrote:
-

;153065 Wrote: -
In article ,
(Basil
Jet)
wrote:
-
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central
London with only 3tph. But what to do with it?-

Surely the real pressure is to turf the suburban services out to
provide

more mainline and HS2 capacity?

Colin Rosenstiel-

Is diverting the service away from Euston via Camden Road
to wherever a feasible option?-

Wouldn't it be easier to simply replace the LO service to Watford
Junction with the Bakerloo? It might have to wait till the Bakerloo
gets new stock in a few years time, of course.


Certainly it would be simpler but would it be practicable?
I assume the Bakerloo Line is as overcrowded during rush
hour as any other Underground service. Would adding to it
the people who currently travel on the Overground service to
Euston be workable?


I thought the Bakerloo was the least (over) crowded of the LU lines?


We came back to the beginning of this thread: the DC lines to
Euston are an under-utilised asset. Abandoning the service does
address that issue.


I assume you meant "does NOT address"? That's true, but it does free up
the LO Euston platforms for other services.


What? Render 3.5 mile strip of twin track and twin tunnel derelict just
because of platform issues at Euston?

(Has a look at Quail)

Bloody hell. It seems the formation passing Camden carriage sheds is
only 5-track. It certainly looks as if there's room for 6 tracks, the
tracks just aren't there. What were they thinking? (We only run 3tph on
the DC lines, I suppose.) Was it 3tph when LO took it over?

However, platform space at Euston is rumoured to be not in short supply.
Had the approaches been 6-track, the DC lines could have easily
supported 8tph or so from a single platform, surely?

I'm tempted to suggest joining the DC line to the Batterware line just
south of Chalk Farm station, after the Batterware frequency has been
increased. It would get rid of the compromise height platforms between
Kensal Green and Stonebridge Park without losing any direct services
(although Watford High Street would have to be served by either Met
trains or deep tube trains, not both), and give DC commuters an easy
interchange at Camden to the Barnden line that they probably actually want.

I suspect Figure 2 here rules it out though.
http://www.sparpointgroup.com/news/c...e-under-london


Robin9 January 16th 16 09:51 AM

Quote:

Originally Posted by Recliner[_3_] (Post 153217)
Robin9 wrote:[color=blue][i]

'Recliner[_3_ Wrote:
;153191']On Thu, 14 Jan 2016 18:26:44 +0100, Robin9
wrote:
-

;153065 Wrote: -
In article ,
(Basil
Jet)
wrote:
-
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central
London with only 3tph. But what to do with it?-

Surely the real pressure is to turf the suburban services out to
provide

more mainline and HS2 capacity?

Colin Rosenstiel-

Is diverting the service away from Euston via Camden Road
to wherever a feasible option?-

Wouldn't it be easier to simply replace the LO service to Watford
Junction with the Bakerloo? It might have to wait till the Bakerloo
gets new stock in a few years time, of course.


Certainly it would be simpler but would it be practicable?
I assume the Bakerloo Line is as overcrowded during rush
hour as any other Underground service. Would adding to it
the people who currently travel on the Overground service to
Euston be workable?


I thought the Bakerloo was the least (over) crowded of the LU lines?


We came back to the beginning of this thread: the DC lines to
Euston are an under-utilised asset. Abandoning the service does
address that issue.


I assume you meant "does NOT address"? That's true, but it does free up
the LO Euston platforms for other services. On the other hand, a more
intensive LO service to make better use of the track pair would need more
Euston platforms, which will be in short supply during the HS2 rebuilding.

You're quite right. I meant "not address." I've amended my post.

Living in Leyton, I never have any reason to travel on the
Bakerloo during rush hour. If it is less busy than other lines,
is it to the extent of being able to absorb refugees from an
abandoned Watford/Euston service?

I come back to my original suggestion. Diverting the service
via Camden Road would free up platforms at Euston while still
utilising the bulk of the route south of Willesden Junction. Is
this idea workable?

e27002 aurora January 16th 16 02:50 PM

Underground, Overground, Wemmerberley, London
 
On Sat, 16 Jan 2016 11:51:16 +0100, Robin9
wrote:
[color=blue][i]

'Recliner[_3_ Wrote:
;153217']Robin9 wrote:-

'Recliner[_3_ Wrote: -
;153191']On Thu, 14 Jan 2016 18:26:44 +0100, Robin9
wrote:
-

;153065 Wrote: -
In article ,
(Basil
Jet)
wrote:
-
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central
London with only 3tph. But what to do with it?-

Surely the real pressure is to turf the suburban services out to
provide

more mainline and HS2 capacity?

Colin Rosenstiel-

Is diverting the service away from Euston via Camden Road
to wherever a feasible option?-

Wouldn't it be easier to simply replace the LO service to Watford
Junction with the Bakerloo? It might have to wait till the Bakerloo
gets new stock in a few years time, of course.-

Certainly it would be simpler but would it be practicable?
I assume the Bakerloo Line is as overcrowded during rush
hour as any other Underground service. Would adding to it
the people who currently travel on the Overground service to
Euston be workable? -

I thought the Bakerloo was the least (over) crowded of the LU lines?
-

We came back to the beginning of this thread: the DC lines to
Euston are an under-utilised asset. Abandoning the service does
address that issue.-

I assume you meant "does NOT address"? That's true, but it does free
up
the LO Euston platforms for other services. On the other hand, a more
intensive LO service to make better use of the track pair would need
more
Euston platforms, which will be in short supply during the HS2
rebuilding.


You're quite right. I meant "not address." I've amended my post.

Living in Leyton, I never have any reason to travel on the
Bakerloo during rush hour. If it is less busy than other lines,
is it to the extent of being able to absorb refugees from an
abandoned Watford/Euston service?

I come back to my original suggestion. Diverting the service
via Camden Road would free up platforms at Euston while still
utilising the bulk of the route south of Willesden Junction. Is
this idea workable?


IMHO possibly yes.

Recliner[_3_] January 16th 16 03:20 PM

Underground, Overground, Wemmerberley
 
Robin9 wrote:[color=blue][i]

'Recliner[_3_ Wrote:
;153217']Robin9 wrote:-

'Recliner[_3_ Wrote: -
;153191']On Thu, 14 Jan 2016 18:26:44 +0100, Robin9
wrote:
-

;153065 Wrote: -
In article ,
(Basil
Jet)
wrote:
-
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central
London with only 3tph. But what to do with it?-

Surely the real pressure is to turf the suburban services out to
provide

more mainline and HS2 capacity?

Colin Rosenstiel-

Is diverting the service away from Euston via Camden Road
to wherever a feasible option?-

Wouldn't it be easier to simply replace the LO service to Watford
Junction with the Bakerloo? It might have to wait till the Bakerloo
gets new stock in a few years time, of course.-

Certainly it would be simpler but would it be practicable?
I assume the Bakerloo Line is as overcrowded during rush
hour as any other Underground service. Would adding to it
the people who currently travel on the Overground service to
Euston be workable? -

I thought the Bakerloo was the least (over) crowded of the LU lines?
-

We came back to the beginning of this thread: the DC lines to
Euston are an under-utilised asset. Abandoning the service does
address that issue.-

I assume you meant "does NOT address"? That's true, but it does free
up the LO Euston platforms for other services. On the other hand, a more
intensive LO service to make better use of the track pair would need
more Euston platforms, which will be in short supply during the HS2
rebuilding.


You're quite right. I meant "not address." I've amended my post.

Living in Leyton, I never have any reason to travel on the
Bakerloo during rush hour. If it is less busy than other lines,
is it to the extent of being able to absorb refugees from an
abandoned Watford/Euston service?


The Bakerloo currently has a peak service of something like 22 tph. With a
bigger fleet, it shouldn't be too hard to increase it to 25 tph, and
extend, say, 4 tph of the Queens Park reversers to Watford Junction.

In fact, the plan is already to increase it beyond that, with the new fleet
and new signalling. So the modernised Bakerloo should be easily able to
absorb any holes left by withdrawing the LO service, but of course the
direct link to Euston would be lost, which wouldn't go down well.


I come back to my original suggestion. Diverting the service
via Camden Road would free up platforms at Euston while still
utilising the bulk of the route south of Willesden Junction. Is
this idea workable?


I suppose it depends on how many spare paths are available on the busy NLL
between Camden Road and Stratford, assuming that's where you'd send the
trains. I doubt that there are three tph available. In fact, it's easier to
send them to Euston, which we know does have the paths and platforms
available.

But while sending them on to the NLL might provide useful journey
opportunities for some people, it still cuts the link to Euston, without
even leaving spare capacity on the DC lines for more Bakerloo trains.


Recliner[_3_] January 16th 16 03:23 PM

Underground, Overground, Wemmerberley, London
 
e27002 aurora wrote:[color=blue][i]
On Sat, 16 Jan 2016 11:51:16 +0100, Robin9
wrote:


'Recliner[_3_ Wrote:
;153217']Robin9 wrote:-

'Recliner[_3_ Wrote: -
;153191']On Thu, 14 Jan 2016 18:26:44 +0100, Robin9
wrote:
-

;153065 Wrote: -
In article ,
(Basil
Jet)
wrote:
-
I was thinking about what a wasted resource the DC lines from Queens
Park to Euston are. A twin track railway to the edge of Central
London with only 3tph. But what to do with it?-

Surely the real pressure is to turf the suburban services out to
provide

more mainline and HS2 capacity?

Colin Rosenstiel-

Is diverting the service away from Euston via Camden Road
to wherever a feasible option?-

Wouldn't it be easier to simply replace the LO service to Watford
Junction with the Bakerloo? It might have to wait till the Bakerloo
gets new stock in a few years time, of course.-

Certainly it would be simpler but would it be practicable?
I assume the Bakerloo Line is as overcrowded during rush
hour as any other Underground service. Would adding to it
the people who currently travel on the Overground service to
Euston be workable? -

I thought the Bakerloo was the least (over) crowded of the LU lines?
-

We came back to the beginning of this thread: the DC lines to
Euston are an under-utilised asset. Abandoning the service does
address that issue.-

I assume you meant "does NOT address"? That's true, but it does free
up
the LO Euston platforms for other services. On the other hand, a more
intensive LO service to make better use of the track pair would need
more
Euston platforms, which will be in short supply during the HS2
rebuilding.


You're quite right. I meant "not address." I've amended my post.

Living in Leyton, I never have any reason to travel on the
Bakerloo during rush hour. If it is less busy than other lines,
is it to the extent of being able to absorb refugees from an
abandoned Watford/Euston service?

I come back to my original suggestion. Diverting the service
via Camden Road would free up platforms at Euston while still
utilising the bulk of the route south of Willesden Junction. Is
this idea workable?


IMHO possibly yes.


How many spare peak paths are available on the NLL between Camden Road and
Stratford?



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