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Why do new/ modern rail trains seem to have cab doors that don’t slide.

Silent

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I notice this with aventras and just noticed it on a class 805. I think they open inwards but don’t remember. I know electrostars had sliding cab doors.
 
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Bletchleyite

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I notice this with aventras and just noticed it on a class 805. I think they open inwards but don’t remember. I know electrostars had sliding cab doors.

Just depends what is specced. Some Aventras have sliding cab doors and some have slamdoors. My guess would be that the slamdoor is cheaper but not as good for dispatching guard worked trains.
 

XFeed

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197s are sliding cab doors but their predecessors 175s were slam opening outward.

197 sliding cab doors are designed to open automatically in the event of an emergency and the driver needs to vacate the cab in a hurry.
 

Silent

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Just depends what is specced. Some Aventras have sliding cab doors and some have slamdoors. My guess would be that the slamdoor is cheaper but not as good for dispatching guard worked trains.
Yeah a quick search revealed that different Aventras do have different cab doors.
 

saismee

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Just depends what is specced. Some Aventras have sliding cab doors and some have slamdoors. My guess would be that the slamdoor is cheaper but not as good for dispatching guard worked trains.
I think your guess is quite solid. The door handles on the FLIRT cabs (as an example) require a lot of force to operate. I imagine opening and closing them at every stop would tire the guards out.
 

mmh

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On a modern unit this is usually simply down to whether or not it has a gangway connection for running in multiple.
 

Y Ddraig Coch

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197s are sliding cab doors but their predecessors 175s were slam opening outward.

197 sliding cab doors are designed to open automatically in the event of an emergency and the driver needs to vacate the cab in a hurry.
Really? I'm almost 100% certain 175's were/are sliding doors?
 

Y Ddraig Coch

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Really? I'm almost 100% certain 175's were/are sliding doors?

== Doublepost prevention - post automatically merged: ==

The topic is about cab doors.

Vestibule to saloon are sliding doors on 175s.
I understand, maybe im older than you and assuming a slam door opens inwards or outwards and you slam it shut. That is not how a 175 cab door is closed.
 

mmh

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They're talking about the internal door between the cab and the saloon behind it, not the door in the cab on the side of the train.
 

Y Ddraig Coch

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To be fair the OP doesn't specify internal or external cab doors. 175s have sliding external cab doors and internal slam doors.
Indeed, thank you.

== Doublepost prevention - post automatically merged: ==

They're talking about the internal door between the cab and the saloon behind it, not the door in the cab on the side of the train.
Not the clearest.
 

XFeed

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== Doublepost prevention - post automatically merged: ==


I understand, maybe im older than you and assuming a slam door opens inwards or outwards and you slam it shut. That is not how a 175 cab door is closed.

External bodyside cab doors are a plug type and when unplugged they then do slide to open but cab doors into the vestibule open outward.

The 175 cab to vestibule doors are known as "burst through doors" for driver to rapidly escape in an emergency.

== Doublepost prevention - post automatically merged: ==

To be fair the OP doesn't specify internal or external cab doors. 175s have sliding external cab doors and internal slam doors.

Aaahh yes you are correct as you can read it one of two ways :)
 
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vuzzeho

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They're talking about the internal door between the cab and the saloon behind it, not the door in the cab on the side of the train.
They said the Electrostar has sliding cab doors. The cab/saloon doors on Electrostars aren't sliding. I can't think of a single train where the cab/saloon doors are.
 

mmh

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They said the Electrostar has sliding cab doors. The cab/saloon doors on Electrostars aren't sliding. I can't think of a single train where the cab/saloon doors are.
Electrostars actually have both sliding doors and a slam door. The photograph in the link below shows it.

When that end isn't coupled to another unit, the sliding doors are locked open as in the picture, revealing the slam door. You can see the edge of the sliding doors at the sides. When the end is coupled, the slam door is locked open to the left, covering the secondman side of the cab when it's used as a walkway. The picture isn't clear enough to read it, but one of the signs on the door says something along the lines of "doors must be locked open when gangway not in use"

 

Mat17

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They said the Electrostar has sliding cab doors. The cab/saloon doors on Electrostars aren't sliding. I can't think of a single train where the cab/saloon doors are.

First gen DMUs had sliding doors separating the saloon from the cab. As you say though, I can't think of any modern trains that have these.
 

Silent

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I actually meant the external doors but yeah I guesss there is a variation for both internal and external doors between stock.
 

Bletchleyite

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First gen DMUs had sliding doors separating the saloon from the cab. As you say though, I can't think of any modern trains that have these.

Desiros have a pair of sliding doors between the cab and the saloon.

Electrostars have both - sliding when used for passengers, these are locked open and a hinged door closed when the cab is not used for passengers going through.
 

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Bletchleyite

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Guessing they tend to be less secure.

They just cost more. Do you have sliding doors in your house? I would venture only where a normal door won't fit, because a normal door is cheaper. If sliding doors were cheaper they would be fitted universally by housebuilders.

On a train, if you have a good reason for wanting one e.g. easing guard dispatch by having a large sliding door with a droplight, then you'll pay extra.

195/331 were designed for DOO; guard operation was bodged on by adding saloon controls. Had they been designed for guard operation I expect they'd have had sliding doors like 196/197.
 

Posa

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I imagine it is because of cab design and space.

Eg 345/710/720 have big open cabs with centre positioned drivers seats. Plenty of space to have a door that opens inwards enabling the driver to still enter with the seat in position.

Gangway stock 730 etc, 378, 376 etc have drivers seats to the left. It would be physically impossible to open a door inward if the drivers seat was in position and not pushed fully tilted and pushed forward.
Even then the gap between the seat and the door would be tight for some drivers, and dangerous in an emergency if you had to waste time tipping the seat etc to open the door.


The 701 have a sliding door as their cabs are smaller than the rest of the non gangway aventra fleet because they were speced that way.
 

Silent

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I imagine it is because of cab design and space.

Eg 345/710/720 have big open cabs with centre positioned drivers seats. Plenty of space to have a door that opens inwards enabling the driver to still enter with the seat in position.

Gangway stock 730 etc, 378, 376 etc have drivers seats to the left. It would be physically impossible to open a door inward if the drivers seat was in position and not pushed fully tilted and pushed forward.
Even then the gap between the seat and the door would be tight for some drivers, and dangerous in an emergency if you had to waste time tipping the seat etc to open the door.


The 701 have a sliding door as their cabs are smaller than the rest of the non gangway aventra fleet because they were speced that way.


That makes logical sense. So are inward opening doors more secure?
 

Ju135

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Sliding cab doors seem to be more prone to excessive wind noise when driving at speed. 323s are atrocious and are the worse sliding cab door trains I have ever driven.
 

martin2345uk

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We don't even have external cab doors on most of our stock, which can be a real PITA at times.
 

Posa

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That makes logical sense. So are inward opening doors more secure?

The electrostar fleet of sliding doors are air operated which actually seals them quite tightly over a certain speed i believe compared to the aventra opening doors which only have the latches which can be prone to wind noise.

As they slide across i would say sliding doors are more secure as you can't push them in but then it really is a much of a muchness.
 

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