[aliher1911]

You have different rolling stock departing from the same platform. Trains have doors at different locations. Some trains have them close to the center, some near the edges. There are also trains with slam doors - ones that open manually outside, not slide sideways automatically. Welcome to national rail.

[flir]

> There are also trains with slam doors - ones that open manually outside, not slide sideways automatically.

Haven't seen one at Waterloo for decades. Could be wrong of course. I miss them.

[aliher1911]

Not on Waterloo, but Kings Cross had them, which is also mentioned in the article. Waterloo in turn had steam leasure trains departing.