In article , Recliner
writes
The 83 stock was scrapped when some of the vehicles were only 15 years old.
It
was a bloody scandal that no one seemed interested in. But as I've said
before, its easy to spend money with abandon when its not your own and
comes
from ticket receipts and central government.

When the trains were being designed, passenger levels on the tube were in
decline but levels picked up dramatically after the trains were built. The
single-leaf doors proved to be a problem for slow unloading and loading at
stations, the resulting increased dwell times causing numerous problems on
the line.

My understanding is that it wasn't that simple.

When the Jubilee opened, nearly all passengers were going from north of
Baker Street to south of it, or vice versa, or were changing at Baker
Street. That meant that the only station where there would be a
significant number of people boarding *and* a significant number
alighting was Baker Street itself. Therefore the single-leaf doors were
seen as reasonable since they kept the warmth in better in the (many)
open stations.

Once JLE opened, this passenger flow pattern would no longer apply and
the trains weren't suitable any more. As others have said, nobody could
find a good use for them at an economic price.

/me wonders if, today, Vivarail would have taken them.

--
Clive D.W. Feather