"Roland Perry" wrote in message
...
In message , at 23:46:07 on
Sat, 24 Feb 2007, Bruce Varney remarked:
You close the station gates at street level, then run all the trains to
the depot.

And what would you do if the train operators had abandoned the trains and
taken the keys with them?

Trains have keys? Where do they fit - in the side of the steering column?

Yes, believe it or not underground trains need a key or keys to get them
moving, in fact so do most of the mainline trains as well. Up until the
Central Line stock two keys are needed, a control key to turn the train on,
so to speak, and a selector key which allows the train operator to select
which way the train will go.

--
Roland Perry