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Old 29th December 2011 | 19:55
  #20 (permalink)  
GrahamO
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Joined: Nov 2009
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From: UK
Dairyground - serious question.

Have you ever met a few London Underground drivers ?

You would not describe them in the same terms as a pilot if you did. I have met quite a few from the Jubilee and Northern refurbishment days and I can assure you that they were far less capable than you suggest. Sure, above ground drivers and those on the 'cut and cover' suburban lines have some decisions to make but on the Underground, the signalling systems make 99% of their decisions, along with speed, braking, coasting decisions. Timing of start/stop and dwell times come from the signalling system, not from the drivers memory or training. Even acceleration profiles are programmed in hence my earlier comment of some lines involve pressing a couple of buttons quite literally and the train will move off and stop at the next station.

And London to Manchester (West Coast Main Line) is fully automatic moving block signalling - the drivers had even less to do than on the underground (which is the topic)

Accidents do happen but mostly when outside unpredictable events occur, like a vehicle on the line, but there have not been, to my knowledge, any signalling caused train accidents in the UK - ever.

Human decisions have been the cause of many however and that alone is a better reason to take those pesky humans out of the loop. We used to say that systems were easily managed by a man and a dog and that the dog was there to keep the man way from touching anything.
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