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Constructing Finsbury Park terminating platforms

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Clarence Yard

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Terminating at Ally Pally seems like a complete non-starter given that the onward connections are two local bus routes or a half mile walk to Wood Green underground.

Certainly for regular services (same for Finsbury Park) but if you need to do it in times of perturbation you could.

Really, you want to keep services moving through this whole area of North London, not terminating services at intermediate stations.
 
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whoosh

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Terminate at Finsbury Park amd run to turn at Canonbury Tunnel, which is what is sometimes planned during engineering works. Only certain depots sign this move though, and only fewer sign 700s as well.
No infrastructure work required!
 

rmHawk765

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Terminate at Finsbury Park amd run to turn at Canonbury Tunnel, which is what is sometimes planned during engineering works. Only certain depots sign this move though, and only fewer sign 700s as well.
No infrastructure work required!
Pretty sure it's mainly 717 drivers that sign this at the minute (there's a booked daily ECS or two reversing at Highbury Vale Jn to retain route knowledge), though I guess this could work as a short-term solution. I am guessing 717 drivers sign it to be able to reverse in the event of NCL disruption though I can't remember this having ever happened.
 

London Trains

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As it happens, I am against both, but have yet to find a practical way of replacing Peterborough-Horsham with something else that works. Extra platforms at Finsbury Park is another proposal that doesn't work to add to the list.
An extra platform at Kings Cross is the only proper way to solve the issue for good, and I believe it is entirely possible to add one - while there's no chance of the old P10 coming back, the new platform can go on the other side of the station as I detailed in my previous post:
I've previously suggested a "platform minus 1" at Kings Cross, built along York Way - it would be a bit of a squeeze, but if York Way was narrowed to one narrow lane with the bus stop and bus stands all removed, there should be enough space to fit in a platform.
 

rmHawk765

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An extra platform at Kings Cross is the only proper way to solve the issue for good
While it won't solve it for 'good', it's certainly the most robust solution, I will agree - it was my fault for not taking my own look at KGX and deciding whether there is space.
 

TrainTraveler

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The thing I would do at Finsbury Park is better links between the various levels.

With luggage the (fairly recent) lifts are a great asset although confusing if you don't use them regularly.

It seems that something like the London Bridge rebuild is needed at Finsbury Park but there must be something about the construction of the station that makes an "opening up" project extremely challenging.
 

Hadders

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For trains that actually need to use the fasts (which is not all), this would happen only once when departing/arriving depending on which side is used, and with only 2tph of terminating trains I cannot see it being an issue. Correct me if I'm wrong, of course, I'm not an expert at pathing, but it seems ridiculous to me that 2tph having to block the fast lines is completely infeasible.
Have a look at how many trains leave Kings Cross every hour, then add in the four Thameslink trains an hour that go fast line north of Finsbury Park and there's not any more space left.

I have heard rumours that trains might be terminated at Finsbury Park during disruption, presumably when the core or Northern City Line is shut and there's no platform space at Kings Cross. I don't know which trains this would apply or exactly where the trains would reverse.
 

mr_jrt

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Just bite the bullet and new deep bored tunnel from south of Finsbury Park to somewhere around New Cross via Moorgate? Existing Thameslink just handles MML and South Central, and new tunnel handles the ECML and South Eastern.
 

rmHawk765

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I have heard rumours that trains might be terminated at Finsbury Park during disruption, presumably when the core or Northern City Line is shut and there's no platform space at Kings Cross. I don't know which trains this would apply or exactly where the trains would reverse.
Occasionally northbound TL trains are terminated at Finsbury Park, though not as part of disruption, rather due to planned engineering works. I have travelled on these before, and I presume they reverse at Bowes Park. As I mentioned, 717 drivers sign Canonbury presumably to handle NCL disruption by terminating at Finsbury, though I don't think this has ever been done (at least not in a good while).

== Doublepost prevention - post automatically merged: ==

Just bite the bullet and new deep bored tunnel from south of Finsbury Park to somewhere around New Cross via Moorgate? Existing Thameslink just handles MML and South Central, and new tunnel handles the ECML and South Eastern.
Someone has already suggested this, but this does not really add a new terminus, rather a secondary route for TL when the core is disrupted (or generally for more TL services). I guess you could terminate at New Cross but I do not know if this is possible without extra platforms given both terminating platforms are already used (and you'd need an intermediate station for central London).
 
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Topological

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Just bite the bullet and new deep bored tunnel from south of Finsbury Park to somewhere around New Cross via Moorgate? Existing Thameslink just handles MML and South Central, and new tunnel handles the ECML and South Eastern.
Make Thameslink essentially Midland Mainline - Victoria services
Make This new tunnel ECML - South Eastern
Make Crossrail 2 Great Northern - Waterloo services (More space at Liverpool Street)
Make Crossrail 3 Marylebone - Waterloo services (Waterloo needs more relief)

I thought about the WCML, but there will be ample space at Euston post HS2.

Easy, just loads of tunnels to build.
 

William3000

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Cambridge-Maidstone and Peterborough-Horsham are not the same. Cambridge-Maidstone is worse than Peterborough-Horsham in two important respects.
Agreed Cambridge to Maidstone East is a non-starter. I think it was suggested at a time when the aim was to get as much through the core as possible. Getting through the core is easy from the slows: changing at Hitchin, Stevenage, or Finsbury Park so I don’t see through trains beteeen Cambridge and Maidstone as important.

Most importantly the Cambridge-Maidstone trains would have been booked to stop in the 2 track section at Welwyn North, whereas the Peterborough-Horsham trains pass through the 2 track section without stopping. The trains that stop at Welwyn North are the most critical to the operation of the ECML, because of the extra time that they take to get through the 2 track section.
I’m always slightly surprised how good a service Welwyn North gets given it’s on the most constrained section.

Cambridge-Maidstone would also have provided the stopping service north of Hitchin on a 2 track railway shared with non-stop Fen Line trains, Peterborough-Horsham has a 4 track railway north of Hitchin apart from Holme Fen.
North of Huntingdon and up to Holme, it’s a 3 track railway with the up slow having been removed around the time the line was electrified. Holme to Fletton Junction is just 2 tracks and frequently cited as a principal reason why a new station at Hampton isn’t straightforward.

As it happens, I am against both, but have yet to find a practical way of replacing Peterborough-Horsham with something else that works. Extra platforms at Finsbury Park is another proposal that doesn't work to add to the list.
 

The Planner

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It should be sorted, but the other issue other than cost is that there is no particularly convenient diversion route. The Hertford Loop cannot run on a reduced timetable for months to allow diversions, so a complete closure would be necessary.
It could and I bet it would be as well.
 

mr_jrt

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An alternative I mused back before KX was redeveloped was to pull down the suburban shed and build a new third (or maybe even a 4th?) arch alongside the existing two. I have a sinking suspicion that for a 4th you would have to take a good few metres off the southern end of the canal tunnels to get room for curvature with any decent sort of speed, though.

That's why things always end up coming back to a new tunnel. You only need terminal capacity for intercity services, which are we short of at KX? Everything else ideally needs to be linked up and sent through paired up with a service in the opposite direction.
 

Uncle Buck

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That's why things always end up coming back to a new tunnel. You only need terminal capacity for intercity services, which are we short of at KX? Everything else ideally needs to be linked up and sent through paired up with a service in the opposite direction.
Maybe for inner-suburban services, but with the really long-distance services isn’t the sheer scale of the service, and the delays imported thereby, the main issue? Peterborough is one hundred miles north of London, in the Midlands- trains terminating there should run into King’s Cross and terminate there.
 

rmHawk765

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You only need terminal capacity for intercity services, which are we short of at KX? Everything else ideally needs to be linked up and sent through paired up with a service in the opposite direction.
It is clear that not everything needs to or can be 'sent through'. Peterborough to Horsham is an excellent example, and there are other TL routes out of the ECML's scope with similar concerns.
 

whoosh

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Maybe for inner-suburban services, but with the really long-distance services isn’t the sheer scale of the service, and the delays imported thereby, the main issue? Peterborough is one hundred miles north of London, in the Midlands- trains terminating there should run into King’s Cross and terminate there.

That's a not insignificant 30% exaggeration you've made there!
 

rmHawk765

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Getting through the core is easy from the slows: changing at Hitchin, Stevenage, or Finsbury Park so I don’t see through trains beteeen Cambridge and Maidstone as important.
This is the thing. If we consider a terminating service and a 'through' service via the core, a properly timetabled cross-platform interchange does not pose any real downgrade in service versus actually running the terminating service through.

== Doublepost prevention - post automatically merged: ==

I think we can collate a few different options that could be considered (but keep in mind this is speculative), in order of feasability:
  • Reversing trains via Canonbury at times of disruption (no infrastructure changes needed)
  • Narrowing York Rd to squeeze in an extra platform at KGX
  • Extra platforms at Finsbury as I originally suggested
And of course, you have the crazy New Cross idea, but this would only be useful if the ECML ever sees a massive increase in TL frequency.
 
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Transilien

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That’ll teach me to put it into Google Maps! Still, 75 miles is a pretty long commuter service!
It is, thameslink really shouldn’t be thought of as a commuter service, but an inter regional service like trans Pennine express. The Thameslink core is essentially the castlefield corridor of London
 

D365

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Although, when one considers that KGX-PBO is also served by LNER, HUN is approximately 58 miles from KGX or STP.
 

rmHawk765

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Although, when one considers that KGX-PBO is also served by LNER, HUN is approximately 58 miles from KGX or STP.
I personally see PBO as mainly served by LNER, with the TL service being mostly for Hitchin-Peterborough. PBO is just a convenient place to terminate.
 

Magdalia

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I've previously suggested a "platform minus 1" at Kings Cross, built along York Way - it would be a bit of a squeeze, but if York Way was narrowed to one narrow lane with the bus stop and bus stands all removed, there should be enough space to fit in a platform.
Here is what York Way actually looks like:


Kings Cross again​


Another view on York Way in July 1985​


So basically you plan to demolish all of the eastern side of a grade 1 listed building, then dig a very big hole to put another track in it?

Note that the portal into the old arrivals taxi road, which is now platform 0, is at a much lower level than York Way and the top of it only just visible behind the wall.

I think we can put this one in the proposals that do not work pile.

Although, when one considers that KGX-PBO is also served by LNER, HUN is approximately 58 miles from KGX or STP.
Huntingdon and Cambridge are a very similar distance from London, and both are only a bit further than Bedford or Brighton. The Thameslink Peterborough service performs 2 functions, as a commuter railway out to Huntingdon, and as an important local service between Hitchin and Peterborough. However the carriage sidings and traincrew depot are both at Peterborough, and there is a big Huntingdon-Peterborough flow that is too big to transfer to longer distance trains.

The Hertford Loop cannot run on a reduced timetable for months to allow diversions, so a complete closure would be necessary.
The Hertford Loop running on a very reduced timetable is what happened after the Hatfield derailment.
 

William3000

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Maybe for inner-suburban services, but with the really long-distance services isn’t the sheer scale of the service, and the delays imported thereby, the main issue? Peterborough is one hundred miles north of London, in the Midlands- trains terminating there should run into King’s Cross and terminate there.
King’s Lynn is even further and while it doesn’t go through the core, is not really intercity anymore but more a medium distance regional service.
 

London Trains

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Here is what York Way actually looks like:


So basically you plan to demolish all of the eastern side of a grade 1 listed building, then dig a very big hole to put another track in it?

Note that the portal into the old arrivals taxi road, which is now platform 0, is at a much lower level than York Way and the top of it only just visible behind the wall.

I think we can put this one in the proposals that do not work pile.
I have been to York Way many times. Where did I say anything about demolishing the side of the building? My plan would leave the building completely untouched, with the entirety of the new platform built on the outside - I've quickly made a drawing which better explains what I envision:

Kings Cross Platform.png
Satellite image of Kings Cross Station with drawings of a new platform added.

The platform is roughly 250m long, so would fit all formations apart from 10-coach 800s.
 

Magdalia

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How long was that, I can't remember exactly?
About a month all day then another month at evenings and weekends.

My plan would leave the building completely untouched, with the entirety of the new platform built on the outside
It is still in the pile of solutions that don't work. It still requires a very long and deep hole in York Way, which is almost certainly full of electricity and communications cables, gas, water and sewage pipes. Somewhere down there, not far below the surface, is the old tunnel that linked the Great Northern lines with the Widened Lines. The remainder of the road would be very narrow and you have no proposals for what to do about the buses, or access to the side roads on the east side of York Way. And I'm not convinced that it can be done without risking the structural integrity of the listed building.

I commuted through Kings Cross during the construction of the British Library, the St Pancras extensions and the Kings Cross Western Concourse. I also fail to see how it could be built and still keep traffic moving (especially buses and taxis) around Kings Cross and St Pancras.
 
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Instinct04

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About a month all day then another month at evenings and weekends.


It is still in the pile of solutions that don't work. It still requires a very long and deep hole in York Way, which is almost certainly full of electricity and communications cables, gas, water and sewage pipes. Somewhere down there, not far below the surface, is the old tunnel that linked the Great Northern lines with the Widened Lines. The remainder of the road would be very narrow and you have no proposals for what to do about the buses, or access to the side roads on the east side of York Way. And I'm not convinced that it can be done without risking the structural integrity of the listed building.

I commuted through Kings Cross during the construction of the British Library, the St Pancras extensions and the Kings Cross Western Concourse. I also fail to see how it could be built and still keep traffic moving (especially buses and taxis) around Kings Cross and St Pancras.
So what can be done then, in your opinion?
 

MatthewHutton

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Cambridge-Maidstone and Peterborough-Horsham are not the same. Cambridge-Maidstone is worse than Peterborough-Horsham in two important respects.

Most importantly the Cambridge-Maidstone trains would have been booked to stop in the 2 track section at Welwyn North, whereas the Peterborough-Horsham trains pass through the 2 track section without stopping. The trains that stop at Welwyn North are the most critical to the operation of the ECML, because of the extra time that they take to get through the 2 track section.

Cambridge-Maidstone would also have provided the stopping service north of Hitchin on a 2 track railway shared with non-stop Fen Line trains, Peterborough-Horsham has a 4 track railway north of Hitchin apart from Holme Fen.

As it happens, I am against both, but have yet to find a practical way of replacing Peterborough-Horsham with something else that works. Extra platforms at Finsbury Park is another proposal that doesn't work to add to the list.
I know it would be bold but I do think they should consider closing Welwyn north.

== Doublepost prevention - post automatically merged: ==

I have been to York Way many times. Where did I say anything about demolishing the side of the building? My plan would leave the building completely untouched, with the entirety of the new platform built on the outside - I've quickly made a drawing which better explains what I envision:

View attachment 196364
Satellite image of Kings Cross Station with drawings of a new platform added.

The platform is roughly 250m long, so would fit all formations apart from 10-coach 800s.
compared to other London terminals are there really capacity restrictions at King’s Cross?
 
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