Hi there,
I've been busy avoiding more work

and I've come up with some more ideas. Here's my speculation about the Leeds HS2 station.
Here are a lot of assumptions that need to be made or at least questions asked about where Leeds HS2 Station will be. What I'veasssumed is that, unlike Sheffield or Nottingham, this will be a city centre location. It also assumes that it will need to be able to cope with 400m trains. The minimum size would probably be 4 platform faces
■Will it be a through station?
■Will it be a terminus?
■Will there be links to allow running onto the exising network?
■Will it be connected to the current station?
Here are some ideas
There are three terminus station sites which are shown in red and two through station options shown in green
The first terminus option is on the site of the long abandoned Leeds Central Station
The advantages of this site are:
■Right size, long and wide enough
■Was once rail connected, allignments are still feasible
■Only a couple of building would need to be demolished
The disadvantages of this site are:
■No possibility of being a through station
■No way to access the station from the North
■A bit of a way from the existing station - interchanges not really easy
■Would have to build partly over the river meaning a partly elevated station
The second terminus option is on the site of the current car park (or the long abandoned Leeds Wellington Station)
The advantages of this site are:
■Right length for 400m trains
■It's part of the existing station - easy interchanges
■Through trains would use the existing station
The disadvantages of this site are:
■Rather narrow - may struggle to get 4 new 400m platform faces
■Will some of this space be used for general expansion of the station anyway?
■Tricky construction - partially over the river
■Complex trackwork needed to get to the new HS2 line and provide through running onto existing tracks
■Where would a replacement car park go?
The third terminus option is on the site of the old goods yard at Pottery Fields, now a retail park
The advantages of this site are:
■Right size, long and wide enough
■Was once rail connected, allignments into the site still exists
■Retail parks can be simply relocated with sufficient financial motivation
■It's flat and straighforward to build on
The disadvantages of this site are:
■It has been comprehesively redeveloped
■It's some distance from the existing station
■No possible way to serve trains from the North
The first through option is at Crown Point parallel to the existing track
The advantages of this site are:
■Right size, long and wide enough
■Existing railway thoroughfare
■Simplest connection to the North
■Not too much demolition required
The disadvantages of this site are:
■It's an elevated viaduct already - complex build?
■It's some distance from the existing station
■Would need to accomodate existing tracks through/around it
■How would the HS2 tracks get through the current Leeds station?
The second through option is at Holbeck. This would use the disused viaduct for the approach but rather than swinging back with the existing curves would have a new station. This would extend northeastwards on the site of mainly exisitng carparks. It would then tunnel under the office blocks and the river and emerge at Neville Hill Junction for access to the North.
The advantages of this site are:
■Right size, long and wide enough
■Approaches are simple, both to the south and north
■The approaches are smooth allowing fast through running if required
■Reasonably close to the new southern entrance to the existing station
■Not too much demolition required
■Minimal disruption to exising track layout and services
The disadvantages of this site are:
■It's an elevated viaduct already - complex build?
■It would require some low rise office blocks to be demolished
■It would need some tunnelling to access the North
Comments / idea / suggestions welcome. Abuse no so much...

Cheers,
Jason