Neil Williams wrote:
On 2 Dec, 09:56, wrote:

The entire central line.

The doors are operated manually, and the command to depart after
checking the doors is given by the driver pressing a button. Same
with the Viccy line,

Two buttons, in both cases.

and for that matter the DLR.

It depends what mode the train is in:

If the captain is operating the doors from the front, then it is one
button that he pushes.

If he is moving about the train however, he will close all other doors
from where he is standing. But his door will remain open and allow him
to check the platform. After he closes his door, then the train takes
off -- no other positive action is required.


It's the operation of the doors, and most importantly the confirmation
they are closed and nothing is trapped in them, that is the issue.

Neil