On 2 Apr, 13:04, Mr Thant
wrote:
Only if you demolish an enormous swathe of Shoreditch. And if you're
planning to 8 track the line west of Bethnal Green junction (which you
probably need to do to have enough trains to need more platforms),
there's an enormous amount of digging to do as well.

Here's a quick dump of what I mean:
http://maps.google.co.uk/maps/ms?ie=...16ea694c6d0ce2

....I'm not clear how that entails demolishing a great chunk of
Shoreditch? A couple of buildings on the high street, yes, but new
shops could be constructed afterwards to replace them on the top of
the tunnel. Bear in mind I'm not advocating this now....the point I
was making that had this been built in the basement of those
skyscrapers when they were being built on Broad Street's still-warm
corpse, we could have had both a station and the buildings.

Dispose of the GE13 bridge and ramp and you're clear for more tracks
to Tapp Street, only a (literal!) stone's throw from Bethnal Green
Junction.

Hence my suggestion of re-using the Bishopsgate Goods Yard viaduct
route, which starts at roughly Bethnal Green, and would require far
less demolition. You could even have used the original GE19 bridge,
and maybe the Braithwaite viaduct, and Broad Street station itself.

An equally valid suggestion that I concluded as well myself at first
when I first saw the aerial imagery. Downsides to it are that you
would have less additional room for more tracks into as you'd
essentially have a big division between the stations and their
throats, and and you'd also gain some width from not having the
Bishopsgate structure there at all (clearances, etc). You'd also have
a two-level station, which would be less convenient than having
everything on the level...and finally, you'd not have the massive cash
injection BR got from selling the site. My idea may have provided less
than what they actually got, but it would still be more than
preserving Broad Street.