Londonist have posted an interesting article
<https://londonist.com/london/transport/how-deep-is-your-commute-these-diagrams-show-the-depth-of-each-station>
about a set of diagrams showing the height of every LU platform, including
sea level and ground level, in familiar route-map format.

That article links to one by their creator
<https://www.dansilva.co.uk/down-underground> which in turn links to a PDF
of all the maps.

Anna Noyd-Dryver

On 23/06/2022 17:10, Anna Noyd-Dryver wrote:
> Londonist have posted an interesting article
> <https://londonist.com/london/transport/how-deep-is-your-commute-these-diagrams-show-the-depth-of-each-station>
> about a set of diagrams showing the height of every LU platform, including
> sea level and ground level, in familiar route-map format.
>
> That article links to one by their creator
> <https://www.dansilva.co.uk/down-underground> which in turn links to a PDF
> of all the maps.
>

Neat

--
Graeme Wall
This account not read.

On Thu, 23 Jun 2022 16:10:20 -0000 (UTC), Anna Noyd-Dryver
<anna@noyd-dryver.com> wrote:

>Londonist have posted an interesting article
><https://londonist.com/london/transport/how-deep-is-your-commute-these-diagrams-show-the-depth-of-each-station>
>about a set of diagrams showing the height of every LU platform, including
>sea level and ground level, in familiar route-map format.
>
>That article links to one by their creator
><https://www.dansilva.co.uk/down-underground> which in turn links to a PDF
>of all the maps.
>
>
>Anna Noyd-Dryver

I guess as we're all rail lovers on this group, we're fans of the Bee
Gees.. and "How Deep Is Your Love"?

On 24/06/2022 01:37, Nobody wrote:
> On Thu, 23 Jun 2022 16:10:20 -0000 (UTC), Anna Noyd-Dryver
> <anna@noyd-dryver.com> wrote:
>
>> Londonist have posted an interesting article
>> <https://londonist.com/london/transport/how-deep-is-your-commute-these-diagrams-show-the-depth-of-each-station>
>> about a set of diagrams showing the height of every LU platform, including
>> sea level and ground level, in familiar route-map format.
>>
>> That article links to one by their creator
>> <https://www.dansilva.co.uk/down-underground> which in turn links to a PDF
>> of all the maps.
>>
>>
>> Anna Noyd-Dryver
>
> I guess as we're all rail lovers on this group, we're fans of the Bee
> Gees.. and "How Deep Is Your Love"?

:-)

--
Graeme Wall
This account not read.

In message <t9239c$2rl$3@dont-email.me>, at 16:10:20 on Thu, 23 Jun
2022, Anna Noyd-Dryver <anna@noyd-dryver.com> remarked:

>Londonist have posted an interesting article
><https://londonist.com/london/transport/how-deep-is-your-commute-these-diagrams-show-the-depth-of-each-station>
>about a set of diagrams showing the height of every LU platform, including
>sea level and ground level, in familiar route-map format.

What a good idea. Normally when people ask about "how deep is a tube
station" they are unable to verbalise whether mean below street level
(eg Hampstead, -58m) or below sea level (eg Waterloo Jubilee, -26m).

I'd perhaps prefer a way of showing the latter without needing mental
arithmetic, but the numbers are there.

One I wasn't expecting is how far below sea level Holborn Piccadilly is.

Now all we need is the DLR (eg at Bank) adding.
--
Roland Perry

Roland Perry <roland@perry.co.uk> wrote:
> In message <t9239c$2rl$3@dont-email.me>, at 16:10:20 on Thu, 23 Jun
> 2022, Anna Noyd-Dryver <anna@noyd-dryver.com> remarked:
>
>> Londonist have posted an interesting article
>> <https://londonist.com/london/transport/how-deep-is-your-commute-these-diagrams-show-the-depth-of-each-station>
>> about a set of diagrams showing the height of every LU platform, including
>> sea level and ground level, in familiar route-map format.
>
> What a good idea. Normally when people ask about "how deep is a tube
> station" they are unable to verbalise whether mean below street level
> (eg Hampstead, -58m) or below sea level (eg Waterloo Jubilee, -26m).
>
> I'd perhaps prefer a way of showing the latter without needing mental
> arithmetic, but the numbers are there.
>
> One I wasn't expecting is how far below sea level Holborn Piccadilly is.
>
> Now all we need is the DLR (eg at Bank) adding.

I know the DLR is the deepest at Bank, so that provides a clue.

In message <t940dc$33v$2@dont-email.me>, at 09:33:32 on Fri, 24 Jun
2022, Recliner <recliner.usenet@gmail.com> remarked:
>Roland Perry <roland@perry.co.uk> wrote:
>> In message <t9239c$2rl$3@dont-email.me>, at 16:10:20 on Thu, 23 Jun
>> 2022, Anna Noyd-Dryver <anna@noyd-dryver.com> remarked:
>>
>>> Londonist have posted an interesting article
>>>
>>><https://londonist.com/london/transport/how-deep-is-your-commute-these
>>>-diagrams-show-the-depth-of-each-station>
>>> about a set of diagrams showing the height of every LU platform, including
>>> sea level and ground level, in familiar route-map format.
>>
>> What a good idea. Normally when people ask about "how deep is a tube
>> station" they are unable to verbalise whether mean below street level
>> (eg Hampstead, -58m) or below sea level (eg Waterloo Jubilee, -26m).
>>
>> I'd perhaps prefer a way of showing the latter without needing mental
>> arithmetic, but the numbers are there.
>>
>> One I wasn't expecting is how far below sea level Holborn Piccadilly is.
>>
>> Now all we need is the DLR (eg at Bank) adding.
>
>I know the DLR is the deepest at Bank, so that provides a clue.

I know that too, but it doesn't provide an answer accurate to the
nearest metre.

However, don't you have an app which shows the number of steps between
lines, and knowing what a step's height is, maybe you can deduce the
result by step-counting from the Northern to DLR platforms. Do let us
know how you get on.
--
Roland Perry

On Fri, 24 Jun 2022 14:29:58 +0100, Roland Perry <roland@perry.co.uk>
wrote:

>In message <t940dc$33v$2@dont-email.me>, at 09:33:32 on Fri, 24 Jun
>2022, Recliner <recliner.usenet@gmail.com> remarked:
>>Roland Perry <roland@perry.co.uk> wrote:
>>> In message <t9239c$2rl$3@dont-email.me>, at 16:10:20 on Thu, 23 Jun
>>> 2022, Anna Noyd-Dryver <anna@noyd-dryver.com> remarked:
>>>
>>>> Londonist have posted an interesting article
>>>>
>>>><https://londonist.com/london/transport/how-deep-is-your-commute-these
>>>>-diagrams-show-the-depth-of-each-station>
>>>> about a set of diagrams showing the height of every LU platform, including
>>>> sea level and ground level, in familiar route-map format.
>>>
>>> What a good idea. Normally when people ask about "how deep is a tube
>>> station" they are unable to verbalise whether mean below street level
>>> (eg Hampstead, -58m) or below sea level (eg Waterloo Jubilee, -26m).
>>>
>>> I'd perhaps prefer a way of showing the latter without needing mental
>>> arithmetic, but the numbers are there.
>>>
>>> One I wasn't expecting is how far below sea level Holborn Piccadilly is.
>>>
>>> Now all we need is the DLR (eg at Bank) adding.
>>
>>I know the DLR is the deepest at Bank, so that provides a clue.
>
>I know that too, but it doesn't provide an answer accurate to the
>nearest metre.
>
>However, don't you have an app which shows the number of steps between
>lines, and knowing what a step's height is, maybe you can deduce the
>result by step-counting from the Northern to DLR platforms. Do let us
>know how you get on.
>
Isn't that calculation spoiled by some sloping bits of pedestrian
tunnel?

Charles Ellson <charlesellson@btinternet.com> wrote:
> On Fri, 24 Jun 2022 14:29:58 +0100, Roland Perry <roland@perry.co.uk>
> wrote:
>
>> In message <t940dc$33v$2@dont-email.me>, at 09:33:32 on Fri, 24 Jun
>> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>>> Roland Perry <roland@perry.co.uk> wrote:
>>>> In message <t9239c$2rl$3@dont-email.me>, at 16:10:20 on Thu, 23 Jun
>>>> 2022, Anna Noyd-Dryver <anna@noyd-dryver.com> remarked:
>>>>
>>>>> Londonist have posted an interesting article
>>>>>
>>>>> <https://londonist.com/london/transport/how-deep-is-your-commute-these
>>>>> -diagrams-show-the-depth-of-each-station>
>>>>> about a set of diagrams showing the height of every LU platform, including
>>>>> sea level and ground level, in familiar route-map format.
>>>>
>>>> What a good idea. Normally when people ask about "how deep is a tube
>>>> station" they are unable to verbalise whether mean below street level
>>>> (eg Hampstead, -58m) or below sea level (eg Waterloo Jubilee, -26m).
>>>>
>>>> I'd perhaps prefer a way of showing the latter without needing mental
>>>> arithmetic, but the numbers are there.
>>>>
>>>> One I wasn't expecting is how far below sea level Holborn Piccadilly is.
>>>>
>>>> Now all we need is the DLR (eg at Bank) adding.
>>>
>>> I know the DLR is the deepest at Bank, so that provides a clue.
>>
>> I know that too, but it doesn't provide an answer accurate to the
>> nearest metre.
>>
>> However, don't you have an app which shows the number of steps between
>> lines, and knowing what a step's height is, maybe you can deduce the
>> result by step-counting from the Northern to DLR platforms. Do let us
>> know how you get on.
>>
> Isn't that calculation spoiled by some sloping bits of pedestrian
> tunnel?
>

From
<https://www.telegraph.co.uk/travel/destinations/europe/united-kingdom/england/london/articles/London-Underground-150-fascinating-Tube-facts/>

In Central London the deepest station below street level is also on the
Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.

On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
Recliner <recliner.usenet@gmail.com> wrote:
>In Central London the deepest station below street level is also on the
>Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.

And don't you know it when the DLR does its rollcoaster ride from the
viaduct at tower hill down to bank.

<Muttley@dastardlyhq.com> wrote:
> On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
> Recliner <recliner.usenet@gmail.com> wrote:
>> In Central London the deepest station below street level is also on the
>> Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.
>
> And don't you know it when the DLR does its rollcoaster ride from the
> viaduct at tower hill down to bank.
>

Yes, that's quite a spectacular descent (round a curve) in a short
distance. The drop must be over 50m.

In message <31mbbh9d9jgcc5kv93iup4uo54uuao7802@4ax.com>, at 16:29:22 on
Fri, 24 Jun 2022, Charles Ellson <charlesellson@btinternet.com>
remarked:
>On Fri, 24 Jun 2022 14:29:58 +0100, Roland Perry <roland@perry.co.uk>
>wrote:
>
>>In message <t940dc$33v$2@dont-email.me>, at 09:33:32 on Fri, 24 Jun
>>2022, Recliner <recliner.usenet@gmail.com> remarked:
>>>Roland Perry <roland@perry.co.uk> wrote:
>>>> In message <t9239c$2rl$3@dont-email.me>, at 16:10:20 on Thu, 23 Jun
>>>> 2022, Anna Noyd-Dryver <anna@noyd-dryver.com> remarked:
>>>>
>>>>> Londonist have posted an interesting article
>>>>>
>>>>><https://londonist.com/london/transport/how-deep-is-your-commute-these
>>>>>-diagrams-show-the-depth-of-each-station>
>>>>> about a set of diagrams showing the height of every LU platform, including
>>>>> sea level and ground level, in familiar route-map format.
>>>>
>>>> What a good idea. Normally when people ask about "how deep is a tube
>>>> station" they are unable to verbalise whether mean below street level
>>>> (eg Hampstead, -58m) or below sea level (eg Waterloo Jubilee, -26m).
>>>>
>>>> I'd perhaps prefer a way of showing the latter without needing mental
>>>> arithmetic, but the numbers are there.
>>>>
>>>> One I wasn't expecting is how far below sea level Holborn Piccadilly is.
>>>>
>>>> Now all we need is the DLR (eg at Bank) adding.
>>>
>>>I know the DLR is the deepest at Bank, so that provides a clue.
>>
>>I know that too, but it doesn't provide an answer accurate to the
>>nearest metre.
>>
>>However, don't you have an app which shows the number of steps between
>>lines, and knowing what a step's height is, maybe you can deduce the
>>result by step-counting from the Northern to DLR platforms. Do let us
>>know how you get on.
>>
>Isn't that calculation spoiled by some sloping bits of pedestrian
>tunnel?

That was Waterloo. The connection at Bank doesn't have much in the way
of corridors.
--
Roland Perry

In message <t94mcb$7rj$2@dont-email.me>, at 15:48:27 on Fri, 24 Jun
2022, Recliner <recliner.usenet@gmail.com> remarked:
>Charles Ellson <charlesellson@btinternet.com> wrote:
>> On Fri, 24 Jun 2022 14:29:58 +0100, Roland Perry <roland@perry.co.uk>
>> wrote:
>>
>>> In message <t940dc$33v$2@dont-email.me>, at 09:33:32 on Fri, 24 Jun
>>> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>>>> Roland Perry <roland@perry.co.uk> wrote:
>>>>> In message <t9239c$2rl$3@dont-email.me>, at 16:10:20 on Thu, 23 Jun
>>>>> 2022, Anna Noyd-Dryver <anna@noyd-dryver.com> remarked:
>>>>>
>>>>>> Londonist have posted an interesting article
>>>>>>
>>>>>>
>>>>>><https://londonist.com/london/transport/how-deep-is-your-commute-these
>>>>>>-diagrams-show-the-depth-of-each-station> about a set of diagrams
>>>>>>showing the height of every LU platform, including sea level and
>>>>>>ground level, in familiar route-map format.
>>>>>
>>>>> What a good idea. Normally when people ask about "how deep is a tube
>>>>> station" they are unable to verbalise whether mean below street level
>>>>> (eg Hampstead, -58m) or below sea level (eg Waterloo Jubilee, -26m).
>>>>>
>>>>> I'd perhaps prefer a way of showing the latter without needing mental
>>>>> arithmetic, but the numbers are there.
>>>>>
>>>>> One I wasn't expecting is how far below sea level Holborn Piccadilly is.
>>>>>
>>>>> Now all we need is the DLR (eg at Bank) adding.
>>>>
>>>> I know the DLR is the deepest at Bank, so that provides a clue.
>>>
>>> I know that too, but it doesn't provide an answer accurate to the
>>> nearest metre.
>>>
>>> However, don't you have an app which shows the number of steps between
>>> lines, and knowing what a step's height is, maybe you can deduce the
>>> result by step-counting from the Northern to DLR platforms. Do let us
>>> know how you get on.
>>>
>> Isn't that calculation spoiled by some sloping bits of pedestrian
>> tunnel?
>
>From
><https://www.telegraph.co.uk/travel/destinations/europe/united-kingdom/e
>ngland/london/articles/London-Underground-150-fascinating-Tube-facts/>
>
>In Central London the deepest station below street level is also on the
>Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.

Gnash, while Bank is on the Northern Line, the DLR concourse isn't!

Anyway, that's wrong because Hampstead is 58m below street level. Once
again a lack of attention to detail regarding the difference between
Street and Sea level.

Meanwhile Bank's entrance is 14m above sea level according to the
Londonist maps, and 41.4m below that is -27.4, so 1.4m (although
Londonist rounds to the nearest metre) lower than Waterloo Jubilee,
and a whopping ~11m lower than the Northern Line.
--
Roland Perry

In message <t94ots$qov$2@dont-email.me>, at 16:31:56 on Fri, 24 Jun
2022, Recliner <recliner.usenet@gmail.com> remarked:
><Muttley@dastardlyhq.com> wrote:
>> On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
>> Recliner <recliner.usenet@gmail.com> wrote:
>>> In Central London the deepest station below street level is also on the
>>> Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.
>>
>> And don't you know it when the DLR does its rollcoaster ride from the
>> viaduct at tower hill down to bank.
>
>Yes, that's quite a spectacular descent (round a curve) in a short
>distance. The drop must be over 50m.

If the track at Tower Gateway is more than 22m above sea level. The
Circle Line at Tower Hill is 7m above sea level, but I can't picture how
much above that the DLR might be.
--
Roland Perry

Roland Perry <roland@perry.co.uk> wrote:
> In message <t94mcb$7rj$2@dont-email.me>, at 15:48:27 on Fri, 24 Jun
> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>> Charles Ellson <charlesellson@btinternet.com> wrote:
>>> On Fri, 24 Jun 2022 14:29:58 +0100, Roland Perry <roland@perry.co.uk>
>>> wrote:
>>>
>>>> In message <t940dc$33v$2@dont-email.me>, at 09:33:32 on Fri, 24 Jun
>>>> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>>>>> Roland Perry <roland@perry.co.uk> wrote:
>>>>>> In message <t9239c$2rl$3@dont-email.me>, at 16:10:20 on Thu, 23 Jun
>>>>>> 2022, Anna Noyd-Dryver <anna@noyd-dryver.com> remarked:
>>>>>>
>>>>>>> Londonist have posted an interesting article
>>>>>>>
>>>>>>>
>>>>>>> <https://londonist.com/london/transport/how-deep-is-your-commute-these
>>>>>>> -diagrams-show-the-depth-of-each-station> about a set of diagrams
>>>>>>> showing the height of every LU platform, including sea level and
>>>>>>> ground level, in familiar route-map format.
>>>>>>
>>>>>> What a good idea. Normally when people ask about "how deep is a tube
>>>>>> station" they are unable to verbalise whether mean below street level
>>>>>> (eg Hampstead, -58m) or below sea level (eg Waterloo Jubilee, -26m).
>>>>>>
>>>>>> I'd perhaps prefer a way of showing the latter without needing mental
>>>>>> arithmetic, but the numbers are there.
>>>>>>
>>>>>> One I wasn't expecting is how far below sea level Holborn Piccadilly is.
>>>>>>
>>>>>> Now all we need is the DLR (eg at Bank) adding.
>>>>>
>>>>> I know the DLR is the deepest at Bank, so that provides a clue.
>>>>
>>>> I know that too, but it doesn't provide an answer accurate to the
>>>> nearest metre.
>>>>
>>>> However, don't you have an app which shows the number of steps between
>>>> lines, and knowing what a step's height is, maybe you can deduce the
>>>> result by step-counting from the Northern to DLR platforms. Do let us
>>>> know how you get on.
>>>>
>>> Isn't that calculation spoiled by some sloping bits of pedestrian
>>> tunnel?
>>
>> From
>> <https://www.telegraph.co.uk/travel/destinations/europe/united-kingdom/e
>> ngland/london/articles/London-Underground-150-fascinating-Tube-facts/>
>>
>> In Central London the deepest station below street level is also on the
>> Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.
>
> Gnash, while Bank is on the Northern Line, the DLR concourse isn't!
>
> Anyway, that's wrong because Hampstead is 58m below street level.

Is Hampstead in central London?

> Once
> again a lack of attention to detail regarding the difference between
> Street and Sea level.

No, onve again a lack of attention by you to what they actually said.

>
> Meanwhile Bank's entrance is 14m above sea level according to the
> Londonist maps, and 41.4m below that is -27.4, so 1.4m (although
> Londonist rounds to the nearest metre) lower than Waterloo Jubilee,
> and a whopping ~11m lower than the Northern Line.

Not really surprising, as the DLR crosses underneath the Northern Line.

Roland Perry <roland@perry.co.uk> wrote:
> In message <t94ots$qov$2@dont-email.me>, at 16:31:56 on Fri, 24 Jun
> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>> <Muttley@dastardlyhq.com> wrote:
>>> On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
>>> Recliner <recliner.usenet@gmail.com> wrote:
>>>> In Central London the deepest station below street level is also on the
>>>> Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.
>>>
>>> And don't you know it when the DLR does its rollcoaster ride from the
>>> viaduct at tower hill down to bank.
>>
>> Yes, that's quite a spectacular descent (round a curve) in a short
>> distance. The drop must be over 50m.
>
> If the track at Tower Gateway is more than 22m above sea level. The
> Circle Line at Tower Hill is 7m above sea level, but I can't picture how
> much above that the DLR might be.

The DLR is 41.4m below street level at Bank, and on an embankment at Tower
Gateway (59 steps up from street level).

On 25/06/2022 10:44, Recliner wrote:
> Roland Perry <roland@perry.co.uk> wrote:
>> In message <t94ots$qov$2@dont-email.me>, at 16:31:56 on Fri, 24 Jun
>> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>>> <Muttley@dastardlyhq.com> wrote:
>>>> On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
>>>> Recliner <recliner.usenet@gmail.com> wrote:
>>>>> In Central London the deepest station below street level is also on the
>>>>> Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.
>>>>
>>>> And don't you know it when the DLR does its rollcoaster ride from the
>>>> viaduct at tower hill down to bank.
>>>
>>> Yes, that's quite a spectacular descent (round a curve) in a short
>>> distance. The drop must be over 50m.
>>
>> If the track at Tower Gateway is more than 22m above sea level. The
>> Circle Line at Tower Hill is 7m above sea level, but I can't picture how
>> much above that the DLR might be.
>
> The DLR is 41.4m below street level at Bank, and on an embankment at Tower
> Gateway (59 steps up from street level).
>

Which bit of the DLR, track level or platform level?

--
Graeme Wall
This account not read.

Graeme Wall <rail@greywall.demon.co.uk> wrote:
> On 25/06/2022 10:44, Recliner wrote:
>> Roland Perry <roland@perry.co.uk> wrote:
>>> In message <t94ots$qov$2@dont-email.me>, at 16:31:56 on Fri, 24 Jun
>>> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>>>> <Muttley@dastardlyhq.com> wrote:
>>>>> On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
>>>>> Recliner <recliner.usenet@gmail.com> wrote:
>>>>>> In Central London the deepest station below street level is also on the
>>>>>> Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.
>>>>>
>>>>> And don't you know it when the DLR does its rollcoaster ride from the
>>>>> viaduct at tower hill down to bank.
>>>>
>>>> Yes, that's quite a spectacular descent (round a curve) in a short
>>>> distance. The drop must be over 50m.
>>>
>>> If the track at Tower Gateway is more than 22m above sea level. The
>>> Circle Line at Tower Hill is 7m above sea level, but I can't picture how
>>> much above that the DLR might be.
>>
>> The DLR is 41.4m below street level at Bank, and on an embankment at Tower
>> Gateway (59 steps up from street level).
>>
>
> Which bit of the DLR, track level or platform level?
>

Platform

On 25/06/2022 11:11, Recliner wrote:
> Graeme Wall <rail@greywall.demon.co.uk> wrote:
>> On 25/06/2022 10:44, Recliner wrote:
>>> Roland Perry <roland@perry.co.uk> wrote:
>>>> In message <t94ots$qov$2@dont-email.me>, at 16:31:56 on Fri, 24 Jun
>>>> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>>>>> <Muttley@dastardlyhq.com> wrote:
>>>>>> On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
>>>>>> Recliner <recliner.usenet@gmail.com> wrote:
>>>>>>> In Central London the deepest station below street level is also on the
>>>>>>> Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.
>>>>>>
>>>>>> And don't you know it when the DLR does its rollcoaster ride from the
>>>>>> viaduct at tower hill down to bank.
>>>>>
>>>>> Yes, that's quite a spectacular descent (round a curve) in a short
>>>>> distance. The drop must be over 50m.
>>>>
>>>> If the track at Tower Gateway is more than 22m above sea level. The
>>>> Circle Line at Tower Hill is 7m above sea level, but I can't picture how
>>>> much above that the DLR might be.
>>>
>>> The DLR is 41.4m below street level at Bank, and on an embankment at Tower
>>> Gateway (59 steps up from street level).
>>>
>>
>> Which bit of the DLR, track level or platform level?
>>
>
> Platform
>

Ta

--
Graeme Wall
This account not read.

In message <t96l0p$82j$2@dont-email.me>, at 09:37:29 on Sat, 25 Jun
2022, Recliner <recliner.usenet@gmail.com> remarked:

>>> <https://www.telegraph.co.uk/travel/destinations/europe/united-kingdom/e
>>> ngland/london/articles/London-Underground-150-fascinating-Tube-facts/>
>>>
>>> In Central London the deepest station below street level is also on the
>>> Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.
>>
>> Gnash, while Bank is on the Northern Line, the DLR concourse isn't!
>>
>> Anyway, that's wrong because Hampstead is 58m below street level.
>
>Is Hampstead in central London?

Harefield Hospital groundhog day?
--
Roland Perry

In message <t96lej$a3g$2@dont-email.me>, at 09:44:51 on Sat, 25 Jun
2022, Recliner <recliner.usenet@gmail.com> remarked:
>Roland Perry <roland@perry.co.uk> wrote:
>> In message <t94ots$qov$2@dont-email.me>, at 16:31:56 on Fri, 24 Jun
>> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>>> <Muttley@dastardlyhq.com> wrote:
>>>> On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
>>>> Recliner <recliner.usenet@gmail.com> wrote:
>>>>> In Central London the deepest station below street level is also on the
>>>>> Northern line. It is the DLR concourse at Bank, which is 41.4
>>>>>metres below.
>>>>
>>>> And don't you know it when the DLR does its rollcoaster ride from the
>>>> viaduct at tower hill down to bank.
>>>
>>> Yes, that's quite a spectacular descent (round a curve) in a short
>>> distance. The drop must be over 50m.
>>
>> If the track at Tower Gateway is more than 22m above sea level. The
>> Circle Line at Tower Hill is 7m above sea level, but I can't picture how
>> much above that the DLR might be.
>
>The DLR is 41.4m below street level at Bank, and on an embankment at Tower
>Gateway (59 steps up from street level).

What we need is the two heights above/below sea level.

So DLR@Bank is 41.4 minus 14 = 27.4

If Tower Gateway is the same height as Tower Hill (a reasonable
assumption) then we have 14 plus 59*(0.12) = 21 (other estimates
of step height welcome).

So the difference is 48m to 49m, so you are broadly correct, but we do
need to understand why that is.
--
Roland Perry

Nobody <jock@soccer.com> wrote:
> On Thu, 23 Jun 2022 16:10:20 -0000 (UTC), Anna Noyd-Dryver
> <anna@noyd-dryver.com> wrote:
>
>> Londonist have posted an interesting article
>> <https://londonist.com/london/transport/how-deep-is-your-commute-these-diagrams-show-the-depth-of-each-station>
>> about a set of diagrams showing the height of every LU platform, including
>> sea level and ground level, in familiar route-map format.
>>
>> That article links to one by their creator
>> <https://www.dansilva.co.uk/down-underground> which in turn links to a PDF
>> of all the maps.
>>
>>
>> Anna Noyd-Dryver
>
> I guess as we're all rail lovers on this group, we're fans of the Bee
> Gees.. and "How Deep Is Your Love"?

I was about to say something similar - curse you, earworm! <shakes fist>

Sam

--
The entity formerly known as Sam.Wilson@ed.ac.uk
Spit the dummy to reply

On Fri, 24 Jun 2022 16:31:56 -0000 (UTC)
Recliner <recliner.usenet@gmail.com> wrote:
><Muttley@dastardlyhq.com> wrote:
>> On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
>> Recliner <recliner.usenet@gmail.com> wrote:
>>> In Central London the deepest station below street level is also on the
>>> Northern line. It is the DLR concourse at Bank, which is 41.4 metres below.
>>
>> And don't you know it when the DLR does its rollcoaster ride from the
>> viaduct at tower hill down to bank.
>>
>
>Yes, that's quite a spectacular descent (round a curve) in a short
>distance. The drop must be over 50m.

I wonder if they timetable it so the regen from a train coming down powers
a train going up? I've never thought to check. Otherwise thats a lot of lost
energy which probably won't be all used by trains back down the line.

On Sat, 25 Jun 2022 13:02:45 -0000 (UTC), Sam Wilson
<ukr@dummy.wislons.fastmail.co.uk> wrote:

>Nobody <jock@soccer.com> wrote:
>> On Thu, 23 Jun 2022 16:10:20 -0000 (UTC), Anna Noyd-Dryver
>> <anna@noyd-dryver.com> wrote:
>>
>>> Londonist have posted an interesting article
>>> <https://londonist.com/london/transport/how-deep-is-your-commute-these-diagrams-show-the-depth-of-each-station>
>>> about a set of diagrams showing the height of every LU platform, including
>>> sea level and ground level, in familiar route-map format.
>>>
>>> That article links to one by their creator
>>> <https://www.dansilva.co.uk/down-underground> which in turn links to a PDF
>>> of all the maps.
>>>
>>>
>>> Anna Noyd-Dryver
>>
>> I guess as we're all rail lovers on this group, we're fans of the Bee
>> Gees.. and "How Deep Is Your Love"?
>
>I was about to say something similar - curse you, earworm! <shakes fist>
>
>Sam

The gift that keeps on Gibbing...

Roland Perry <roland@perry.co.uk> wrote:
> In message <t96lej$a3g$2@dont-email.me>, at 09:44:51 on Sat, 25 Jun
> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>> Roland Perry <roland@perry.co.uk> wrote:
>>> In message <t94ots$qov$2@dont-email.me>, at 16:31:56 on Fri, 24 Jun
>>> 2022, Recliner <recliner.usenet@gmail.com> remarked:
>>>> <Muttley@dastardlyhq.com> wrote:
>>>>> On Fri, 24 Jun 2022 15:48:27 -0000 (UTC)
>>>>> Recliner <recliner.usenet@gmail.com> wrote:
>>>>>> In Central London the deepest station below street level is also on the
>>>>>> Northern line. It is the DLR concourse at Bank, which is 41.4
>>>>>> metres below.
>>>>>
>>>>> And don't you know it when the DLR does its rollcoaster ride from the
>>>>> viaduct at tower hill down to bank.
>>>>
>>>> Yes, that's quite a spectacular descent (round a curve) in a short
>>>> distance. The drop must be over 50m.
>>>
>>> If the track at Tower Gateway is more than 22m above sea level. The
>>> Circle Line at Tower Hill is 7m above sea level, but I can't picture how
>>> much above that the DLR might be.
>>
>> The DLR is 41.4m below street level at Bank, and on an embankment at Tower
>> Gateway (59 steps up from street level).
>
> What we need is the two heights above/below sea level.

The sea level calculations are completely unnecessary, as both the stations
in question have the same height of 14m above sea level.

>
> So DLR@Bank is 41.4 minus 14 = 27.4
>
> If Tower Gateway is the same height as Tower Hill (a reasonable
> assumption) then we have 14 plus 59*(0.12) = 21 (other estimates
> of step height welcome).

The UK building regulations states that steps must have a height between
150-170mm. This a requirement for all types of buildings, so let's assume a
step riser height of 160mm. That makes Tower Gateway 9.44m above ground
level, or 50.8m above the level at Bank.

>
> So the difference is 48m to 49m, so you are broadly correct, but we do
> need to understand why that is.

My quick estimate of, "The drop must be over 50m" was remarkably accurate
for an actual difference of 50.8m, not just 'broadly correct'.