"Mizter T" wrote

District to Aldgate, exit and walk to Aldgate East for the Circle or
Met lines would be one way to deal with it - is Aldgate and Aldgate
East an outerchange I wonder, coz it should be if it ain't though I
bet it already is.

It's never been advertised as an interchange, and isn't needed as one.
Passengers for the H&C from east of Barking (or east of Whitechapel Sundays
and late evenings when the H&C doesn't run east of Whitechapel) have a same
platform interchange at Aldgate East.

Peter