I noticed this tonight at Hornsey - it might have been there for ages but tonight was the first time I noticed it. Don't know if t suggests anything imminent?
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We'll, it suggests that when the 717s enter service the drivers will know where to stop. Nothing more.
In other news, many platform staff have been trained on the new stock, and are continuing to be. As far as I can gather, approximately a third of the staff needing training have had it.
I don't know how the driver training is going, other than that the three test runs daily are being used for that purpose.
There's a booklet being given to platform staff detailing the 717. At the very back it says the trains have provision for toilets to be fitted. I can't see that ever happening.