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UK: Passenger forced to run along London platform with hand trapped in doors of moving train
(www.theguardian.com)
this post was submitted on 24 Dec 2024
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Wikipedia lists many countries that use platform screen doors as a safety measure, for both train and bus platforms. Below, Bogotá.
The Elizabeth line is already built with platform screen doors, although I believe they're only on underground sections. I don't know enough about this station to say whether it had them; I expect not.
Platform screen doors tend to be used underground mainly for airflow management. They are not primarily for safety.
They work less well outside. No overhead structure to anchor to, weather has a larger impact (particularly snow/ice), and they can become something to climb rather than an obstacle.
Some metro projects in India are using them outside though.
I haven’t personally traveled on this station before but looking online at pictures it seems this station is overground not underground and doesn’t have the platform screen doors.
I do know other lines have started to add platform screen doors as well on the London Underground namely Waterloo Underground Station and the Jubilee line.
On underground lines, the PSDs are mostly for air-sealing. It allows you to air-condition the platforms without trying to cool the tunnels, and it helps the piston effect of moving trains pull air through the tunnels, rather than just swirl air around each platform.
Also probably helps for fire engineering.
Ah, interesting, thanks!
Not a lot of passenger rail here in the US, though now that you show that picture, I think I recall seeing an internal airport train that has some kind of similar screen.
pokes around
Yeah, I think that it's the airport train at Atlanta that I'm thinking of, looks like they have them.
reads further
It sounds like the goal of these are somewhat different. Hmm. According to that article, there are some problems with providing direct passenger access to the space with the rail lines -- people committing suicide using the train, people falling onto the tracks, people intentionally running around in the rail tunnels via access from the platform, unwanted movement of air between the passenger and rail area, and people tossing garbage into the track area, and this avoids those issues; the passengers still get access to the train interior when there's a train present, but not to the track.
considers
It might also provide a second safety mechanism -- I assume that the train can't move if either the safety mechanism on the station platform door or the train door detects that its door is obstructed from closing, but I think that this would still permit the potential for people running late for a train aiming to halt the train from leaving by tripping the safety mechanism on both doors.
kagis
Hmm.
https://old.reddit.com/r/tall/comments/613ogj/guys_head_gets_stuck_between_train_doors_xpost/
Based on the comment on this post, on the London subway, they partially mitigate people trying to block the train from leaving by not always fully reopening the doors if they hit an obstacle. This guy apparently got his head wedged in the door, and I guess whatever degree to which they will reopen, if any, wasn't enough to retract it.
New sign on doors:
"The door WILL close.
Puny human flesh is not an obstacle worthy of stopping the inevitable closure of the door."
Hey look it's star citizen