Paul Corfield wrote:
On Wed, 9 Dec 2009 18:51:31 -0000, "Peter Smyth"
wrote:

Here they are

[big huge OSI list]

Thanks for that - duly saved. There are some very interesting
combinations on that list. It also throws up some options I would not
have deduced such as interchange between halves of NR termini, Bromley
South - Bromley North plus allowing Waterloo East to Embankment as an
OSI via the Thames footbridge.


Looking at the 21 permutations at Waterloo and Waterloo East, I see there is
no OSI between Jubilee and LU (Bakerloo/Northern) - will this be because
there is full interchange behind the gateline? Or might it just be missing?

One that I think has been mentioned before but doesn't appear is the two
Edgware Rd LU stations - of course now they are not shown as an interchange
anymore this is less important?

I thought some of the longer 'NR - NR' OSIs are a little unexpected, such as
Paddington/Marylebone, and Euston/St Pancras/Kings Cross - but they're
logical if they've assumed that some pax will walk and bypass the
underground...

Paul S