wrote:
ISTR that the NLL services will be switched to terminate at the High
Level platforms when the route south of Stratford closes - numbers
12/13(?) - which will mean one less of the few stations with mainline
services on two levels.

Ah, but wait until the DLR extension opens. Then Stratford will be the
_only_ station with DLR services on two levels! (I bet it confuses a
lot of pax, trying to get to Stratford International and getting on a
train to Canary Wharf instead, because that's the only DLR platform on
that level!)

I hadn't twigged that it would be a two-level DLR station! Although I
think the new platforms currently being built for the Stratford-Canary
Wharf-Lewisham route to replace platform 4 will be at about the same
level as the Jubilee/NLL/future DLR Int'l platforms, but not
immediately adjacent to them, so room for confusion.

It would certainly be a great help if DLR introduced route numbers or
reintroduced colour coding, as the system will be very complex once the
International extension opens.

When the original railway opened in 1987 Stratford-Island Gardens was
the blue route, and Tower Gateway-Island Gardens was the green route.
On the original motorised destination blinds (and the whirlybox things
that temporarily replaced them) the route colour was used as the
background. On the LCD displays the destination alternated with (e.g.)
'Red Route' every few seconds.

Sometime around or just after the opening of the Beckton extension (the
blue route) the colour coding was dropped - perhaps 1995? - and all
lines were then shown on route maps as the same hollow 'petrol blue'
colour you see on the Tube Map.