On 12 May, 22:08, Mizter T wrote:
Interesting, thanks - I'm obviously out-of-date on all this! So,
originally we had TfL planning to do up the bridges and quadruple the
line through Camden Road as part of the broader NLL upgrade works;

It was never "quadrupling" at Camden Road in any meaningful way. It
would have meant the eastbound freight loop starting slightly further
west (before rather than after the station) and providing a bay
platform for turning shuttles. A lot of money to spend for very little
benefit.

then TfL (and NR) discovering that this would all cost too much given
the fixed budget they had; then the DfT agreeing to fund it anyway
because it was really important work;

AIUI they had a fixed amount of money to play for the entire NLL
scheme and decided the Camden part of the scheme couldn't be done
within the budget. By not doing Camden, they're now significantly
under budget, and the debate is about whether the DfT gets the
remaining money back or whether TfL can spend it on something else.

satisfied with a less costly solution that doesn't involve 'quad-ing'
the track but instead relies on freight loops - is that a fair
summary?

It was always freight loops.

U