Re: where Park Junction is, now?!
There used to be a lot more to the Northern Line than there is now. If you go to East Finchley, you may wonder why are there four platforms? The outer ones go underground to Highgate, the inner ones go to a set of sidings known as Park Junction, but they also continue on, via a short tunnel, to Highgate High Level, and to other parts of north London originally on the Underground map. Though the line is disused, the track removed, you can still legitimately walk sections of it.
I used to work in that short section of tunnel between Park Junction and Highgate High Level on the Holy Grail of Railway Signal Engineering - Block-Jointless Track Circuiting. Notches were cut into the track at measured intervals and wires inserted where we could attach our measuring instruments. Our "office" was on the station, but not the waiting room as the tocal Wiccas/Druids had commandeered that for their nightly rituals.
Biting the hand that feeds IT
