In message , John Rowland
writes
I'm trying to compile a list of interesting things to go
see on the "tube" on a day trip. Engineering mainly,
like the crossover at the end of the Oxford St Bakerloo,

Piccadilly Circus, actually.

cough OK.

Wide platforms at Euston, Angel and London Bridge.

Shame that tips to the "behind the scenes" bits of Angel and LB aren't
available any more [I've been on both].

Narrow platforms at Claphams North & Common.

Yes.

River in pipe at head height on Sloane Square platforms. (That reads like a
cryptic crossword clue!)

Seen that, good choice.

Bermondsey station, where the geology changes from solid to mushy halfway
along the station, and the station changes from deep tube to deep pit
accordingly.

Tripcock tester at Earls Court District.

Abandoned signal boxes at Woodside Park.

Abandoned passing loops at Brent Cross.

Corridor designed for football crowds at Arsenal station.

Yes, walked along that.

Crap short escalator at North Greenwich.

Platform Edge Doors between Westminster and North Greenwich inclusive.

OK.

Useless "next southbound train" indicators at the bottom of the Camden Town
escalators.

Platforms shared by different height trains at Ealing Common,. Rayners Lane
etc.

Good.
--
Roland Perry