I just noticed that Tufnell Park is shut because the lifts are being
replaced.

So I suppose closing the existing entrance and building a new
Underground / Overground interchange at Station Road with escalators
cutting diagonally down to the existing Northern Line platforms is off
the menu for another 40 years.

On Friday, 22 May 2015 06:34:12 UTC+1, Basil Jet wrote:
I just noticed that Tufnell Park is shut because the lifts are being
replaced.

So I suppose closing the existing entrance and building a new
Underground / Overground interchange at Station Road with escalators
cutting diagonally down to the existing Northern Line platforms is off
the menu for another 40 years.

Tuffers was one of those stations that had a rather annoying lift/escalator characteristic. At the top landing the lift goes almost to street level. There is a further flight of about 10 steps. At the lower level the lift goes almost to platform level - there is a flight of about 20 steps. Lots of other stations have this charming idiosyncracy. It's a major design flaw.

In message , at
03:48:57 on Fri, 22 May 2015, Offramp remarked:
I just noticed that Tufnell Park is shut because the lifts are being
replaced.

So I suppose closing the existing entrance and building a new
Underground / Overground interchange at Station Road with escalators
cutting diagonally down to the existing Northern Line platforms is off
the menu for another 40 years.

Tuffers was one of those stations that had a rather annoying lift/escalator characteristic. At the top landing the lift goes almost to street
level. There is a further flight of about 10 steps. At the lower level the lift goes almost to platform level - there is a flight of about 20
steps. Lots of other stations have this charming idiosyncracy. It's a major design flaw.

The former is usually because there needs to be a mini concourse which
has access to both platforms, and it can't be any lower because the
tracks are in the way. I'll speculate that the latter is so that the
lift's machinery room can be at ground level.
--
Roland Perry

On Friday, 22 May 2015 12:31:58 UTC+1, Roland Perry wrote:

Tuffers was one of those stations that had a rather annoying lift/escalator characteristic.

The former is usually because there needs to be a mini concourse which
has access to both platforms, and it can't be any lower because the
tracks are in the way. I'll speculate that the latter is so that the
lift's machinery room can be at ground level.
--
Roland Perry

Aye. That does make sense. But at stations such as the Claphams North & Common, at the bottom, platform end there is only one platform at the end of the escalator, and a flight of stairs to reach them. Angel may have had the same problem, as well as the other island platform Northern Line station, London Bridge. These last two were vastly rearranged, of course.

In message , at
11:22:24 on Fri, 22 May 2015, Offramp remarked:
Tuffers was one of those stations that had a rather annoying lift/escalator characteristic.

The former is usually because there needs to be a mini concourse which
has access to both platforms, and it can't be any lower because the
tracks are in the way. I'll speculate that the latter is so that the
lift's machinery room can be at ground level.

Aye. That does make sense. But at stations such as the Claphams North & Common,
at the bottom, platform end there is only one platform at the end of the escalator,
and a flight of stairs to reach them.

Even with an island platform, the tracks would have to diverge in order
to fit around the bottom of escalators, and diverge enormously to get
past lift shafts and their circulating areas.

Were any of the island-platform stations originally built with
escalators? Angel had lifts, and the entrance was moved round the corner
during the rebuild to accommodate the horizontal reach of the new
escalators.
--
Roland Perry

Roland Perry wrote:
In message , at
11:22:24 on Fri, 22 May 2015, Offramp remarked:
Tuffers was one of those stations that had a rather annoying lift/escalator
characteristic.

The former is usually because there needs to be a mini concourse which
has access to both platforms, and it can't be any lower because the
tracks are in the way. I'll speculate that the latter is so that the
lift's machinery room can be at ground level.

Aye. That does make sense. But at stations such as the Claphams North & Common,
at the bottom, platform end there is only one platform at the end of the escalator,
and a flight of stairs to reach them.

Even with an island platform, the tracks would have to diverge in order
to fit around the bottom of escalators, and diverge enormously to get
past lift shafts and their circulating areas.

Were any of the island-platform stations originally built with
escalators? Angel had lifts, and the entrance was moved round the corner
during the rebuild to accommodate the horizontal reach of the new escalators.

If you mean island platform stations in a single platform tunnel, I very
much doubt that any had escalators. These were mainly Yerkes stations from
1906 or so, and those early Tube stations didn't have escalators.

There are stations like Green Park that now have escalators, but the
platforms are in separate tunnels.

Roland Perry wrote:
In message , at
03:48:57 on Fri, 22 May 2015, Offramp remarked:
I just noticed that Tufnell Park is shut because the lifts are being
replaced.

So I suppose closing the existing entrance and building a new
Underground / Overground interchange at Station Road with escalators
cutting diagonally down to the existing Northern Line platforms is off
the menu for another 40 years.

Tuffers was one of those stations that had a rather annoying lift/escalator
characteristic. At the top landing the lift goes almost to street
level. There is a further flight of about 10 steps. At the lower level
the lift goes almost to platform level - there is a flight of about 20
steps. Lots of other stations have this charming idiosyncracy. It's a major design flaw.

The former is usually because there needs to be a mini concourse which
has access to both platforms, and it can't be any lower because the
tracks are in the way. I'll speculate that the latter is so that the
lift's machinery room can be at ground level.

They managed it at Caledonian Road.

In article ,
(Lew 1) wrote:

Roland Perry wrote:
In message , at
03:48:57 on Fri, 22 May 2015, Offramp
remarked:
I just noticed that Tufnell Park is shut because the lifts are being
replaced.

So I suppose closing the existing entrance and building a new
Underground / Overground interchange at Station Road with escalators
cutting diagonally down to the existing Northern Line platforms is off
the menu for another 40 years.

Tuffers was one of those stations that had a rather annoying lift/
escalator characteristic. At the top landing the lift goes almost to
street level. There is a further flight of about 10 steps. At the
lower level the lift goes almost to platform level - there is a flight
of about 20 steps. Lots of other stations have this charming
idiosyncracy. It's a major design flaw.

The former is usually because there needs to be a mini concourse which
has access to both platforms, and it can't be any lower because the
tracks are in the way. I'll speculate that the latter is so that the
lift's machinery room can be at ground level.

They managed it at Caledonian Road.

No constraint to be under roads there, though. The Piccadilly runs under the
much wider GN Main Line.

--
Colin Rosenstiel

In message , at 03:28:02
on Sun, 24 May 2015, remarked:
Tuffers was one of those stations that had a rather annoying lift/
escalator characteristic. At the top landing the lift goes almost to
street level. There is a further flight of about 10 steps. At the
lower level the lift goes almost to platform level - there is a flight
of about 20 steps. Lots of other stations have this charming
idiosyncracy. It's a major design flaw.

The former is usually because there needs to be a mini concourse which
has access to both platforms, and it can't be any lower because the
tracks are in the way. I'll speculate that the latter is so that the
lift's machinery room can be at ground level.

They managed it at Caledonian Road.

No constraint to be under roads there, though. The Piccadilly runs under the
much wider GN Main Line.

While the Piccadilly Line is constrained to being under roads through
most of Central London it breaks away just south of Russell Square and
all the way to Kings Cross. The line is in fact a merger of routes: from
Finsbury Park to Holborn and Hammersmith to Piccadilly, joined with a
third stretch from Piccadilly Circus to Holborn.
--
Roland Perry

On 22.05.15 6:34, Basil Jet wrote:

I just noticed that Tufnell Park is shut because the lifts are being
replaced.

So I suppose closing the existing entrance and building a new
Underground / Overground interchange at Station Road with escalators
cutting diagonally down to the existing Northern Line platforms is off
the menu for another 40 years.

I also heard about this.

Is there a reason that they cannot replace one lift at a time in those
nine months, thus avoiding the need to shut down the station?

Could they not pull two lifts while making people use the down stairs?