"Paul Scott" wrote in
:

Also on track 4 at Dalston Junction, there appears to be a diverging
ROW that looks like it is headed east. Does anybody know what that is
for? Is this to stable trains in the future or for eventual eastbound
turnout onto the NLL? IMHO, that it looks like that would be for
prospective service movements, rather than for revenue.

It is definitely future proofing to allow a future single track South
to East curve, but as you suggest it doesn't seem to allow for a
regular service, there'd probably be two many crossing conflicts (at
the DJ throat and also on the NLL at a potential eastern junction) to
timetable a regular service.

Yup - that's all what the BBCJV site manager told me when I went on the
press tour in 2009, at least. Goal is more "it'd be a shame to concrete
it up when it doesn't cost any extra to keep the possibility in place"
than any specific service plans.

JB