In message , Mrs Redboots
writes
Obviously you never travel on the District line, then.
--
"Mrs Redboots"
I don't know about now, but in the late sixties, the tube stock was
operated buy either guard or driver depending on the stock, but
sub-surface stock, the doors were only released so that anyone wanting
to entrain or detrain would have needed to push a button next to the
doors. I understand this was because sub-surface stock spent more time
sat in stations in the open, and doors could be kept closed for the
comfort of punters.
--
Clive