"Peter Smyth" wrote in message ...

"mark townend" wrote in message
...

Anyway purely for my own interest I've drawn up some of these ideas,
and any constructive comments from the group would be most welcome!

See my proposals here -

http://www.townend.me/files/circlenorth.pdf

I think you'll find the that southern ends of the centre tracks at Aldgate
are blocked by pillars that support the station concourse above.