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aus+uk / uk.railway / Re: Plug doors

SubjectAuthor
* Plug doorsMuttley
+* Plug doorsRecliner
|+- Plug doorsMuttley
|+- Plug doorshounslow3@yahoo.co.uk
|`- Plug doorsAnna Noyd-Dryver
`* Plug doorsAnna Noyd-Dryver
 `* Plug doorsRecliner
  `- Plug doorsTheo

1
Plug doors

<t921ig$1caf$1@gioia.aioe.org>

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From: Mutt...@dastardlyhq.com
Newsgroups: uk.railway,uk.transport.london
Subject: Plug doors
Date: Thu, 23 Jun 2022 15:41:04 -0000 (UTC)
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 by: Mutt...@dastardlyhq.com - Thu, 23 Jun 2022 15:41 UTC

Just curious if anyone knows why the Elizabeth Line trains have gone with
plug doors when they seem to have gone out of fashion on more modern rolling
stocks (and even some buses)? Isn't it a more complex mechanism and hence
greater chance of problems compared to straight forward sliding doors?

Re: Plug doors

<kj29bhpbl3u03tqedodl1tvlq14hm941sm@4ax.com>

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From: recliner...@gmail.com (Recliner)
Newsgroups: uk.railway
Subject: Re: Plug doors
Message-ID: <kj29bhpbl3u03tqedodl1tvlq14hm941sm@4ax.com>
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 by: Recliner - Thu, 23 Jun 2022 15:45 UTC

On Thu, 23 Jun 2022 15:41:04 -0000 (UTC), Muttley@dastardlyhq.com wrote:

>Just curious if anyone knows why the Elizabeth Line trains have gone with
>plug doors when they seem to have gone out of fashion on more modern rolling
>stocks (and even some buses)? Isn't it a more complex mechanism and hence
>greater chance of problems compared to straight forward sliding doors?

Other than Hitachi, which other train manufacturers don't use plug doors in modern trains?

Re: Plug doors

<t92337$4rp$1@gioia.aioe.org>

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From: Mutt...@dastardlyhq.com
Newsgroups: uk.railway
Subject: Re: Plug doors
Date: Thu, 23 Jun 2022 16:07:03 -0000 (UTC)
Organization: Aioe.org NNTP Server
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 by: Mutt...@dastardlyhq.com - Thu, 23 Jun 2022 16:07 UTC

On Thu, 23 Jun 2022 16:45:29 +0100
Recliner <recliner.usenet@gmail.com> wrote:
>On Thu, 23 Jun 2022 15:41:04 -0000 (UTC), Muttley@dastardlyhq.com wrote:
>
>>Just curious if anyone knows why the Elizabeth Line trains have gone with
>>plug doors when they seem to have gone out of fashion on more modern rolling
>>stocks (and even some buses)? Isn't it a more complex mechanism and hence
>>greater chance of problems compared to straight forward sliding doors?
>
>Other than Hitachi, which other train manufacturers don't use plug doors in
>modern trains?

Siemens.

Re: Plug doors

<t923ae$7ac$1@gioia.aioe.org>

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From: hounsl...@yahoo.co.uk (hounslow3@yahoo.co.uk)
Newsgroups: uk.railway
Subject: Re: Plug doors
Date: Thu, 23 Jun 2022 17:10:54 +0100
Organization: Aioe.org NNTP Server
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 by: hounslow3@yahoo.co.u - Thu, 23 Jun 2022 16:10 UTC

On 23/06/2022 16:45, Recliner wrote:
> On Thu, 23 Jun 2022 15:41:04 -0000 (UTC), Muttley@dastardlyhq.com wrote:
>
>> Just curious if anyone knows why the Elizabeth Line trains have gone with
>> plug doors when they seem to have gone out of fashion on more modern rolling
>> stocks (and even some buses)? Isn't it a more complex mechanism and hence
>> greater chance of problems compared to straight forward sliding doors?
>
> Other than Hitachi, which other train manufacturers don't use plug doors in modern trains?

Kawasaki, for Metro-North/LIRR's M-series trains?

Re: Plug doors

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From: ann...@noyd-dryver.com (Anna Noyd-Dryver)
Newsgroups: uk.railway,uk.transport.london
Subject: Re: Plug doors
Date: Thu, 23 Jun 2022 16:19:09 -0000 (UTC)
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 by: Anna Noyd-Dryver - Thu, 23 Jun 2022 16:19 UTC

<Muttley@dastardlyhq.com> wrote:
> Just curious if anyone knows why the Elizabeth Line trains have gone with
> plug doors when they seem to have gone out of fashion on more modern rolling
> stocks (and even some buses)? Isn't it a more complex mechanism and hence
> greater chance of problems compared to straight forward sliding doors?
>
>

Manufacturer preference, presumably. I guess they have their reasons
(increasing internal space, perhaps?).

Hitachi were criticised for *not* using plug doors, so I guess you can't
win either way.

Anna Noyd-Dryver

Re: Plug doors

<t923pu$6gs$2@dont-email.me>

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From: ann...@noyd-dryver.com (Anna Noyd-Dryver)
Newsgroups: uk.railway
Subject: Re: Plug doors
Date: Thu, 23 Jun 2022 16:19:10 -0000 (UTC)
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 by: Anna Noyd-Dryver - Thu, 23 Jun 2022 16:19 UTC

Recliner <recliner.usenet@gmail.com> wrote:
> On Thu, 23 Jun 2022 15:41:04 -0000 (UTC), Muttley@dastardlyhq.com wrote:
>
>> Just curious if anyone knows why the Elizabeth Line trains have gone with
>> plug doors when they seem to have gone out of fashion on more modern rolling
>> stocks (and even some buses)? Isn't it a more complex mechanism and hence
>> greater chance of problems compared to straight forward sliding doors?
>
> Other than Hitachi, which other train manufacturers don't use plug doors in modern trains?
>

All LU stock, DLR, HST new doors.

Anna Noyd-Dryver

Re: Plug doors

<a0dbbh5g1sp1a8m3sf3k8voovn7jh4fpsq@4ax.com>

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From: recliner...@gmail.com (Recliner)
Newsgroups: uk.railway
Subject: Re: Plug doors
Message-ID: <a0dbbh5g1sp1a8m3sf3k8voovn7jh4fpsq@4ax.com>
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 by: Recliner - Fri, 24 Jun 2022 12:56 UTC

On Thu, 23 Jun 2022 16:19:09 -0000 (UTC), Anna Noyd-Dryver <anna@noyd-dryver.com> wrote:

><Muttley@dastardlyhq.com> wrote:
>> Just curious if anyone knows why the Elizabeth Line trains have gone with
>> plug doors when they seem to have gone out of fashion on more modern rolling
>> stocks (and even some buses)? Isn't it a more complex mechanism and hence
>> greater chance of problems compared to straight forward sliding doors?
>>
>>
>
>Manufacturer preference, presumably. I guess they have their reasons
>(increasing internal space, perhaps?).
>

Plug doors seal better for high speed trains.

>Hitachi were criticised for *not* using plug doors, so I guess you can't
>win either way.

Hitachi has to fit a pressure mechanism to seal the doors once they close. But sliding doors remain the norm in Japan,
and Hitachi stuck to its normal design.

Re: Plug doors

<1Dz*FwxRy@news.chiark.greenend.org.uk>

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From: theom+n...@chiark.greenend.org.uk (Theo)
Newsgroups: uk.railway
Subject: Re: Plug doors
Date: 24 Jun 2022 16:21:33 +0100 (BST)
Organization: University of Cambridge, England
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 by: Theo - Fri, 24 Jun 2022 15:21 UTC

Recliner <recliner.usenet@gmail.com> wrote:
> Hitachi has to fit a pressure mechanism to seal the doors once they close.
> But sliding doors remain the norm in Japan, and Hitachi stuck to its
> normal design.

Single leaf sliding doors are less wasteful on high speed trains where they
sit near the carriage ends (inhabited by toilets, luggage racks, etc) than
on commuter trains where there are double-leaf doors at 1/3 and 2/3 and the
door pockets reduce the available window area in the saloon. That leads to
sub-optimal arrangements like a single sideways-facing seat instead of a
completely windowless airline bay.

Theo

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