On Tue, 10 Aug 2010 19:28:12 +0100, "Peter Masson"
wrote:

Now
the DLR swings parallel with the GEML, while the National Rail line from Gas
Factory Junction joins the GEML - this latter gets occasional diversions,
though has no booked passenger trains (and I'm not sure that there are any
regular ecs workings)

Thanks for the history lesson! It's an area I know a little, but only
relatively recently. While I was down there last week, I saw the
Network Rail Measurement Train on the NR line, crossing the bridge by
Bow Church DLR station.