In article ,
"Brimstone" wrote:
"Head of Toast" wrote in message
...

They are generally open and closed automatically on the tubes. infact, in
10 years on living in London, I can't remember having to open/close a tube
door myself.

They're not automatic. In days of yore there was a guard on the back, part
of whose job it was to operate the doors. Now you have the benefit of one
person, a Train Operator, to both drive the train and operate the doors. The
button referred to earlier is for staff use when detraing.

I've once had to open the platform doors from inside a Jubilee Line train
when they didn't open. I assume they are linked with the train doors
normally.

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