Thoughts On Digital Signalling On The East Coast Main Line
I came up to Doncaster yesterday on a new Hull Trains Class 802 train.
According to my pocket dynamometer car, the train seemed to be at or nearly at 125 mph, most of the time I looked from possibly around Stevenage to just South of Doncaster.
I came back today on an LNER Class 801 train and the train’s performance seemed very similar.
I also noted the following.
- The two stops at Newark and Peterborough, took seven and nine minutes respectively from the start of slowing for the station until back up to speed.
- Between Peterborough and Stevenage the train kept below a maximum of 110 mph.
- The train went through the two tunnels before Welwyn North station and the station itself at 75 mph.
- I timed the train at 100 mph over the Digswell Viaduct, when it reached the South side after accelerating on the viaduct.
- 90 mph was maintained between Potters Bar and New Southgate stations.
- Speed gradually reduced from New Southgate into Kings Cross.
Note.
- 125 mph is the maximum allowable speed of the train.
- The 110 mph running was probably to be compatible with the Class 387 trains.
- I will do the trip again and get some accurate figures.
It appears to me, that the driver was obeying a simple but fast plan.
The Wikipedia entry for the East Coast Main Line, says this about the opiating speed of the line, with the new trains.
Increasing maximum speeds on the fast lines between Woolmer Green and Dalton-on-Tees up to 140 mph (225 km/h) in conjunction with the introduction of the Intercity Express Programme, level crossing closures, ETRMS fitments, OLE rewiring and the OLE PSU – est. to cost £1.3 billion (2014). This project is referred to as “L2E4” or London to Edinburgh (in) 4 Hours. L2E4 examined the operation of the IEP at 140 mph on the ECML and the sections of track which can be upgraded to permit this, together with the engineering and operational costs
It also says this about the implementation of digital signalling.
A new Rail operating centre (ROC), with training facilities, opened in early 2014 at the “Engineer’s Triangle” in York. The ROC will enable signalling and day-to-day operations of the route to be undertaken in a single location. Signalling control/traffic management using ERTMS is scheduled to be introduced from 2020 on the ECML between London King’s Cross and Doncaster – managed from the York ROC.
The signalling could probably work in one of two ways.
- The signalling tells the driver the required speed and they drive the train accordingly.
- The signalling drives the train and the driver monitors what is happening.
Both methods are used in the UK.
A Possible London Kings Cross and Leeds Service
The combined affect of both track and signalling improvements is illustrated by this simple calculation.
- As Dalton-on-Tees is North of Doncaster, the route between Woolmer Green and Doncaster should be possible to be run at 140 mph
- Woolmer Green and Doncaster stations are 132.1 miles apart.
- Non-stop York and London Kings Cross trains are currently timed at 70 minutes between Doncaster and Woolmer Green stations.
- This is an average speed of 113.2 mph.
If 140 mph could be maintained between Doncaster and Woolmer Green, the section of the journey would take 56.6 minutes, which is a saving of 13.4 minutes.
Consider.
- The fastest current trains between London Kings Cross and Leeds take between two hours and twelve minutes and two hours and fifteen minutes.
- I suspect that the extra tracks into Kings Cross, that are currently being built will save a few minutes.
- There must be some savings to be made between Doncaster and Leeds
- There must be some savings to be made between London Kings Cross and Woolmer Green.
- There could be a rearrangement of stops.
I think it is highly likely that in the future, there will be at least one train per hour (tph) between London Kings Cross and Leeds, that does the trip in two hours.
- There is no reason why all London Kings Cross and Leeds trains could not take two hours.
- London Kings Cross and Doncaster could be several minutes under an-hour-and-a-half.
- High Speed Two is predicting one hour and twenty-one minutes for their future service between London Euston and Leeds, which is a saving of 38 minutes.
- London and Leeds in two hours will attract passengers.
There will be serious competition between London and Leeds.
Other Timing Improvements
I also think these times would be possible
- London Kings Cross and Bradford Forster Square – two hours and thirty minutes
- London Kings Cross and Harrogate – two hours and thirty minutes
- London Kings Cross and Huddersfield – two hours and twenty minutes
- London Kings Cross and Hull – two hours and thirty minutes
- London Kings Cross and Middlesbrough – two hours and thirty minutes
- London Kings Cross and Scarborough – two hours and thirty minutes
- London Kings Cross and Sheffield – two hours
- London Kings Cross and Skipton – two hours and thirty minutes
- London Kings Cross and York – two hours
I would be fairly certain that London Kings Cross and Huddersfield could be slowed by ten minutes, which would give the London Kings Cross and Yorkshire a certain symmetry.
- London Kings Cross and Leeds and York would take two hours.
- London Kings Cross and all the others would take two hours and thirty minutes.
It would probably make arrangement of a fast timetable easier.
Will The East Coast Main Line Give High Speed Two A Run For Its Money To The North East Of England?
I have looked up High Speed Two timings on their Journey Time Calculator and compared them with current LNER timetables.
- London-Leeds – Current – 136 minutes – HS2 – 81 minutes
- London-York – Current – 111 minutes – HS2 – 84 minutes
- London – Darlington – Current – 141 minutes – HS2 – 112 minutes
- York- Darlington – Current – 27 minutes – HS2 – 26 minutes
- London – Durham – Current – 170 minutes – HS2 – 138 minutes
- York – Durham – Current – 45 minutes – HS2 – 44 minutes
- London – Newcastle – Current – 170 minutes – HS2 – 137 minutes
- York – Newcastle – Current – 55 minutes – HS2 – 51 minutes
- London – Edinburgh – Current – 259 minutes – HS2 – 220 minutes
- Newcastle – Edinburgh – Current – 83 minutes – HS2 – 83 minutes
- York – Edinburgh – Current – 138 minutes – HS2 – 134 minutes
Note.
- I have assumed that Newcastle and Edinburgh takes 83 minutes, which is the current timing.
- The time savings possible to the North of Leeds are only a few minutes.
- As an example, the straight route between York and Darlington is 34 miles, which means an average speed of only 75 mph.
Serious work needs to be done North of York to improve timings.
Improvements To The East Coast Main Line
Various improvements to the East Coast Main Line are in process of building designed or built.
Extra Tracks
These example of more tracks are from the Wikipedia entry for the East Coast Main Line.
- Four tracks are being restored between Huntington and Woodwalton.
- Freight loops between York and Darlington.
There are probably other places, which will see extra tracks in the next few years.
Power Supply And Electrification
Wikipedia identified places where the power supply and the electrification could be better.
This sentence indicates the comprehensive nature of the planned work.
Power supply upgrades (PSU) between Wood Green and Bawtry (Phase 1 – completed in September 2017) and Bawtry to Edinburgh (Phase 2), including some overhead lines (OLE) support improvements, rewiring of the contact and catenary wires, and headspan to portal conversions (HS2P) which were installed at Conington in January 2018.
The Hertford Loop Line is also due to have some power supply upgrades.
Station Improvements
Darlington, Kings Cross, Stevenage and York will have track improvements, which will improve the capacity of the tracks through the stations.
Werrington Dive Under
The Werrington Dive Under will be a big improvement. This is an extract from the Wikipedia entry.
The project will see the construction of 1.9 miles (3 km) of new line that will run underneath the fast lines, culverting works on Marholm Brook and the movement of the Stamford lines 82 feet (25 m) westwards over the culverted brook. This will mean that trains for the GN/GE line no longer need to cross the fast lines on the level, nor use the Up Fast line between Peterborough station and the junction. The project, coupled with other ECML improvement schemes (such as the four tracking from Huntingdon to Woodwalton) will improve capacity on the line through Peterborough by 33% according to Network Rail. This equates to two extra train paths an hour by 2021, when the work is scheduled to be completed. In turn, this will remove 21 minutes from the fastest King’s Cross to Edinburgh Waverley service, and 13 minutes from the fastest King’s Cross to Leeds service. It will also see an increase of 1,050 ‘intercity’ seats per hour on express trains through Peterborough.
The upgrade will add two more train paths to the route and knock 21 and 13 minutes off the faster Edinburgh and Leeds services respectively.
The Newark Flat Crossing
This is the railway equivalent of a light-controlled pedestrian crossing in the middle of a motorway.
This Google Map shows the crossing.
Note.
- The East Coast Main Line running roughly North-South
- The A 46 road crossing the line.
- The Nottingham-Lincoln Line running parallel to the railway.
- A chord allowing trains to go between the Nottingham-Lincoln Line and Newark North Gate station, which is to the South.
- The River Trent.
Complicated it certainly is!
I wrote about the problems in The Newark Crossing and felt something radical needed to be done.
Looking at the numbers of trains at the Newark Crossing.
- The number of trains crossing the East Coast Main Line, is typically about three to five trains per hour (tph) and they block the East Coast Main Line for about two minutes.
- But then there could be a fast train around every four minutes on the East Coast Main Line, with eight tph in both directions.
The numbers of trains and their speeds would probably cut out a Control Engineer’s solution, where all trains are computer controlled through the junction.
Although, it might be possible to reduce the number of conflicting trains on the East Coast Main Line dramatically, by arranging a Northbound and a Southbound express passed each other at the flat junction.
There’s also the problem of what happens if a crossing train fails, as it goes over the East Coast Main Line. But that must be a problem now!
Whatever happens here will be a well-thought through solution and it will add to the capacity of the East Coast Main Line and increase the line-speed from the current 100 mph.
Level Crossings
Wikipedia says this about level crossings.
Level crossing closures between King’s Cross and Doncaster: As of July 2015 this will no longer be conducted as a single closure of 73 level crossings but will be conducted on a case-by case basis (for example, Abbots Ripton Level Crossing will close as part of the HW4T scheme).
It is my personal view that all should be removed.
ERTMS Signalling
Wikipedia says this about the installation of ERTMS digital in-cab signalling.
The line between London King’s Cross and Bawtry, on the approach to Doncaster, will be signalled with Level 2 ERTMS. The target date for operational ERTMS services is December 2018 with completion in 2020.
Note that, ERTMS is needed for 140 mph running.
140 mpg Running
Wkipedia says this about 140 mph running.
Increasing maximum speeds on the fast lines between Woolmer Green and Dalton-on-Tees up to 140 mph (225 km/h) in conjunction with the introduction of the Intercity Express Programme, level crossing closures, ERTMS fitments, OLE rewiring and the OLE PSU – est. to cost £1.3 billion (2014). This project is referred to as “L2E4” or London to Edinburgh (in) 4 Hours. L2E4 examined the operation of the IEP at 140 mph on the ECML and the sections of track which can be upgraded to permit this, together with the engineering and operational costs.
A rough calculation indicates that up to eleven minutes could be saved by this upgrade, between London and Darlington.
Prospective Timings On The East Coast Main Line
Consider.
- The package of new trains level crossing closures, ERTMS, OLE rewiring and the OLE PSU, which is collectively known as L2E4 should deliver Edinburgh in four hours.
- Nineteen minutes need to be saved on current times.
- I believe that if the train takes four hours or less, travellers will switch from the airlines.
- High Speed Two are aiming for a time of 220 minutes, but is this by the West or East Coast routes?
- As their proposed Glasgow service has a similar time, I assume it is by the West Coast route.
- Wikipedia states that an Open Access Operator was thinking of running Class 390 trains or Pendelinos between London Kings Cross and Edinburgh in 223 minutes.
If the managers of LNER are the least bit ambitious, I can see them wanting to run a service between London and Edinburgh, in a time that is several minutes under four hours.
It should always be remembered that the East Coast Main Line was built for speed, as these true stories illustrate.
- Mallard set the world speed record for steam locomotives in 1938 of 126 mph, on the line.
- The record time between London and Edinburgh was set in 1991 by an InterCity 225 train at a minute under three-and-a-half hours.
I even have my own special memory of the line, which I wrote about in The Thunder of Three-Thousand Three-Hundred Horses. Behind a Deltic or Class 55 locomotive, I went from Darlington to London in two hours and fifteen minutes, which is faster than today’s fastest trains. Not bad for a 1960s design, but the train was a coach short and had a clear run. And was probably extremely-well driven.
Is the East Coast Main Line and especially the section South of Darlington, a route, where a knowledgeable driver can coax the maximum out of a high speed train?
Possible savings over the next few years include.
Werrington Junction
When this is completed, it could knock twenty-one minutes off the timings to Edinburgh.
Newark Crossing
How much time could be saved here?
There must be some time savings if the line speed can be increased from 100 mph.
140 mph Running
The various improvements in L2E4 are intended to enable services to run between London and Edinburgh in under four hours.
- Does L2E4 include any possible time savings from the Werrington Dive Under?
- Does L2E4 include any possible time savings from improvements at Newark?
- What is the completion date for L2E4?
- Most of the time savings for L2E4 will be South of Darlington as the track is straighter.
As I said earlier a rough calculation indicates that L2E4 will save about eleven minutes to the South of Darlington.
Conclusion
There must be over thirty minutes of savings to be accumulated on the East Coast Main Line. Much of it because of the Werrington and Newark improvements will be South of Darlington.
I wouldn’t be surprised to see timings like these.
- London-Leeds – Current – 136 minutes – HS2 – 81 minutes – Possible ECML – 120 minutes
- London-York – Current – 111 minutes – HS2 – 84 minutes – Possible ECML – 90 minutes
- London – Darlington – Current – 141 minutes – HS2 – 112 minutes – Possible ECML – 115 minutes
- London – Durham – Current – 170 minutes – HS2 – 138 minutes – Possible ECML – 130 minutes
- London – Newcastle – Current – 170 minutes – HS2 – 137 minutes – Possible ECML – 130 minutes
- London – Edinburgh – Current – 259 minutes – HS2 – 220 minutes – Possible ECML – 210 minutes
It looks to me, that the East Coast Main Line could be fulfilling the aspirations of British Rail’s engineers of the 1980s.
Braving The London Underground
I took these pictures today, in a short Underground trip between Angel and Kings Cross St. Pancras tube stations.
It’s not very busy! Is it?
- There was no-one else in the tunnel as I walked between the escalators at Angel station.
- There was only two other people in my carriage on the train.
- There were few people in the tunnels at Kings Cross.
Isuspect that I travelled during lunchtime helped.
First Of Five FirstGroup Class 803s Arrives In UK
The title of this post is the same as that of this article on Rail Magazine.
The Class 803 trains will be used by East Coast Trains for their low-cost, one-class, open-access service between London Kings Cross and Edinburgh.
The trains would appear to be being delivered in time for services to start in Autumn 2021.
The article says the trains are the first to have a new feature.
They will be fitted with batteries, although these will not provide traction performance – instead, they can power on-board services should the train fail.
The Class 803 trains are electric trains and are these batteries a replacement for the single diesel-engine on the electric Class 801 trains? This diesel-engine has two main purposes.
- Provide emergency power for on-board services.
- Move the train to a safe place foe evacuation of passengers.
The article also says that Hitachi could fit traction batteries to existing bi-mode fleets.
LNER Services To Double Between Bradford And London
The title of this post is the same as that as this press release from LNER.
This is the introductory paragraph.
London North Eastern Railway (LNER) is pleased to confirm it will be doubling the number of Azuma weekday services between Bradford Forster Square and London King’s Cross from Monday 18 May 2020.
The timetable is as follows.
Southbound
- Leave Bradford Forster Square at 06:30 and arrive London Kings Cross at 08:59
- Leave Bradford Forster Square at 08:43 and arrive London Kings Cross at 11:31
Northbound
- Leave London Kings Cross at 16:33 and arrive Bradford Forster Square at 19:29
- Leave London Kings Cross at 18:33 and arrive Bradford Forster Square at 21:29
All services appear to call at Shipley between Leeds and Bradford Forster Square.
The press release doesn’t say if the trains split and join at Leeds station, but the timings are generous enough, if it is needed.
I wonder, if there will be more services between London and Bradford Forster Square in a few months. It probably depends on the level of success.
LNER Expands To Huddersfield
This press release from LNER is entitled LNER Announces Direct Services Between Huddersfield And London.
These are the introductory paragraphs.
LNER is proud to announce new Azuma services will be introduced between Huddersfield and London King’s Cross from Monday 18 May 2020.
The daily weekday service in each direction will be LNER’s first direct link between the West Yorkshire market town and the capital.
They will also connect nearby Dewsbury directly with London King’s Cross, after more than a generation of no direct services between Huddersfield and London.
The timetable will be as follows.
The new southbound service will depart from Huddersfield at 05:50 and Dewsbury at 06:01. The Azuma service will arrive in Leeds at 06:16, where it will couple to another five-car Azuma to form the 06:40 Leeds to London King’s Cross service, which will arrive in the capital at 08:51 on weekdays.
The evening northbound service will depart from London King’s Cross at 18:03 and will be formed of two five-car Azuma trains, which will split in Leeds, with one train continuing to Skipton and the other to Dewsbury, arriving at 20:45 and then Huddersfield at 20:58.
Joining and splitting is definitely being brought to Yorkshire by LNER.
I wonder, if there will be a London to Huddersfield service in the reverse direction in a few months.
Chaos Between London And Leeds
On Tuesday, I had booked myself between Kings Cross and Leeds on the 11:03 LNER train. My idea was to do a short round trip to Harrogate from Leeds before going across the Pennines to Manchester and sign in to my hotel, before going to see Ipswich play at Rochdale in the evening.
But it all went wrong, as someone decided to commit suicide and was hit by a train at Grantham.
Finally, I got to Leeds at around two, which was too late to carry out my plan.
- I just missed a Harrogate train and it was getting too dark for photographs.
- I eventually got a very crowded TrainsPennine Express to Manchester Victoria.
- My supper was just a gluten-free egg and waterfresh sandwich from Marks and Spencer.
At least, I’d only paid just under thirty pounds for my First Class ticket to Leeds, which was only six pounds more than I paid to cross the Pennines.
Conclusion
This is the second time recently, after Did Someone Try To Steal The Electrification?, when I’ve been seriously delayed by problems on the railways, which are nothing to do with the trains or train companies.
Staff at LNER told me that suicides are common in November, as Christmas approaches.
Short of putting a security guard every hundred metres along the railway, I don’t think there’s a certain way of stopping these incyursions.
Tortillas From Kings Cross Square
If you are arriving at Kings Cross station and feel a little peckish, it is often worthwhile to check out the offerings in Kings Cross Square in front of the station.
I found these delicious gluten-free tortillas last week.
Thoughts On A 140 mph East Coast Main Line Between London And Doncaster
The East Coast Main Line is being upgraded with digital signalling to allow Azumas and other high speed trains to run at 140 mph for most of the route, starting with the section between London and Doncaster.
There is also a string of projects all along the line to improve operating speed, cut out slow trains and improve junctions and crossings.
Finsbury Park And Stevenage
In The New Fifth Platform At Stevenage Station – 11th October 2019, I talked about the improvements at the Northern end of the Hertford Loop Line, which I believe could allow the fast lines between Stevenage and Finsbury Park stations to be exclusively used by digitally-signalled 140 mph trains.
Currently, these passenger services run between Stevenage and Finsbury Park in a typical hour.
- LNER – Edinburgh – 2 trains – #
- LNER – Leeds – 2 trains – #
- LNER – Newark or York – 1 train – #
- Great Northern – Cambridge and Ely expresses – 2 trains
- Thameslink – Cambridge stopping trains – 2 trains.
- Thameslink – Peterborough and Horsham – 2 trains
- Thameslink – Cambridge and Brighton – 1 train
- Hull Trains – 7 trains per day. – #
- Grand Central – 9 trains per day. – #
- East Coast Trains – 5 trains per day. – From 2021. – #
The services can be divided into four groups.
140 mph Non-Stop Expresses
Services marked with a hash (#) will probably be run by versions of Hitachi Class 80x trains or similar, which will be capable of 140 mph running under digital signalling, between Finsbury Park and Stevenage stations.
The twenty-one services run by Hull Trains, Grand Central and East Coast Trains, will probably add up to less than two trains per hour (tph).
This means that there is a need to run seven tph between Finsbury Park and Stevenage.
Kings Cross and Cambridge/Ely Expresses
Currently, these go non-stop between Kings Cross and Cambridge on the fast lines.
Surely, these should be 140 mph-capable trains, so they fit in with all the fast expresses.
After all, Oxford is served by 140 mph-capable trains, so why not Cambridge?
Cambridge Stopping Trains
The half-hourly Cambridge stopping trains have to stop in Welwyn North station,
- They will have to use the fast lines between Welwyn Garden City and Knebworth stations, as there are only two tracks.
- Currently, trains are timetabled to take nine minutes to pass through the double-track section.
- North and South of the double-track section, the services will use the slow lines, as they call at several stations
But these services still leave forty-five minutes in every hour, in which to fit the 140 mph services through the restricting double track section.
These services will be replaced by a two tph Thameslink service between Cambridge and Maidstone East stations.
Thameslink Cross-London Services
The two Thamelink Cross-London services between Peterborough and Horsham and Cambridge and Brighton, go non-stop between Finsbury Park and Stevenage stations.
So could these three services use the Hertford Loop Line?
- North of Stevenage, they use the slow lines.
- South of Finsbury Park, they use the slow lines to access the Canal Tunnels for the Thameslink platforms at St. Pancras.
- Would calls at perhaps Alexandra Palace, Enfield Chase and Hertford North be worthwhile.
The only disadvantage would be that the route would be a few minutes slower, than using the main line.
Trains Terminating At Kings Cross Station
In each hour, it appears that the following trains will terminate at Kings Cross station.
- Seven 140 mph expresses, that are going North of Hitchin.
- Two 140 mph expresses, that are going to Cambridge/Ely.
- Two stopping services, that are going to Cambridge.
The station has nine platforms in the main station and three in the suburban station at the side.
The Wikipedia entry for Kings Cross station, has a section entitled Future Remodelling, where this is said.
In January 2018, it was announced that half the station would close for 3 months from January to March 2020 for remodelling work to the station and its approach, expected to cost £237 million. This includes rationalisation of the tracks, reopening the third tunnel to the approach of the station and closure of platform 10.
The remodelling must allow an increase in numbers of trains terminating at Kings Cross, especially as the problems in the throat should be sorted.
These points should be noted about the High Speed Two platforms at Euston.
- There are eleven platforms.
- They can handle eighteen tph.
- The trains will be up to four hundred metres long.
Considering that a nine-car Class 801 train is less than 240 metres long, I wouldn’t be surprised to find that Kings Cross can handle eighteen tph.
Does that mean that Kings Cross station can accommodate another seven services?
Would The East Coast Main Line Be Able To Handle Eighteen 140 mph Expresses An Hour?
If Kings Cross station can handle eighteen tph, then the two fast lines of the East Coast Main Line must be able to handle this number of trains.
- The two fast lines of the East Coast Main Line between London and Doncaster could be considered a smaller and slower version of High Speed Two.
- High Speed Two has a capacity of eighteen tph.
- High Speed Two trains are almost twice as fast as those on the East Coast Main Line.
- Signalling on the East Coast Main Line will have to deal with slower trains, where there are less than four tracks, as over the Digswell viaduct and through Welwyn North station.
This is just the sort of challenge, for which digital signalling has been created.
Spare Capacity South Of Hitchin
Suppose in a couple of years the following has been done.
- Kings Cross station has been remodelled.
- The Hertford Loop Line has been updated for more and faster trains.
- Thameslink services can use the Hertford Loop Line.
- Thameslink is running the full 24 tph service.
- The Cambridge stopper has been changed into a Thameslink service between Cambridge and Maidstone East.
- Cambridge and Brighton has become a two tph service.
- Kings Cross and Cambridge/Ely expresses are run by 140 mph-capable trains.
This would mean the following frequencies, to the South of Hitchin.
- Seven tph – 140 mph-capable expresses between Kings Cross and the North, with some stopping at Stevenage.
- Two tph – 140 mph-capable expresses between Kings Cross and Cambridge/Ely.
- Two tph – 100 mph Thameslink services between Cambridge and Brighton routed via the Hertford Loop Line.
- Two tph – 100 mph Thameslink services between Peterborough and Horsham routed via the Hertford Loop Line.
- Two tph – 100 mph Thameslink services between Cambridge and Maidstone East routed via the East Coast Main Line. The slow line will be used except over the Digswell viaduct and through Welwyn North station.
Note.
- There will also be a two tph Thameslink service in the Peak between Welwyn Garden City and Sevenoaks. This can be discounted as it avoids the tricky bits of the East Coast Main Line.
- Thameslink services to Cambridge and Peterborough would be routed via the Hertford Loop ine, at a frequency of four tph.
- All Thameslink services would be routed via the Canal Tunnels and St. Pancras station.
- Kings Cross would only be handling 140 mph-capable trains, at a frequency of nine tph.
If the capacity of the 140 mph fast lines is the same as the similar High Speed Two, then eighteen tph should be possible.
Planned trains could be as follows.
- Seven tph – 140 mph-capable expresses between Kings Cross and the North, with some stopping at Stevenage.
- Two tph – 140 mph-capable expresses between Kings Cross and Cambridge/Ely.
- Two tph – Thameslink service between Cambridge and Maidstone East.
Does that mean another seven tph can be accommodated between Kings Cross and Hitchin?
As only nine tph would be going into Kings Cross, the station should have no difficulty handling that number of trains. It could possibly handle another nine tph.
Spare Capacity North Of Hitchin
At Hitchin, the following services wukk go to and from Cambridge.
- Two tph – 140 mph-capable expresses between Kings Cross and Cambridge/Ely.
- Two tph – Thameslink service between Cambridge and Maidstone East.
The other Thameslink services can be ignored, as they use the slow lines between Stevenage and Hitchin and the Hertford Loop Line, so they are out of the way of the 140 mph services.
Does that mean another ten tph can be accommodated between Hitchin and the North?
What Limits The Number Of Extra Trains?
My crude estimation appears to show the following.
- Kings Cross station may be able to handle another nine tph.
- Between Kings Cross and Hitchin may be able to handle another seven trains.
- North of Hitchin may be able to handle another ten trains.
It would appear that the double track section over the Digswell viaduct and through Welwyn North station, limits the capacity of the whole route.
Estimated Timings
In Changes Signalled For HS2 Route In North, I stated this.
Currently, the fastest non-stop trains between London and Doncaster take a few minutes over ninety minutes. With 140 mph trains, I think the following times are easily possible.
- London and Doncaster – 80 minutes
- London and Hull – A few minutes over two hours, running via Selby.
- London and Leeds – A few minutes less than two hours, running on the Classic route.
For comparison High Speed Two is quoting 88 minutes for London Euston and Leeds, via Birmingham and East Midlands Hub.
There could be a race to Leeds between High speed Two and Classic services on the East Coast Main Line.
Speculation On Extra Services
It would not be right, if I didn’t have a small speculation.
Cambridge Services
Consider.
- Oxford and Cambridge both have two main routes to and from London.
- Both have a fast service running at a frequency of two tph.
- Both have other quality, but slower services.
It could be argued that extra fast services are run to Cambridge, but this would use up two valuable paths over the Digswell viaduct.
Perhaps it would be better to copy Greater Anglia’s solution for London and Norwich services and order a high quality purpose-designed train for the route.
- 140 mph-capability
- Digitally-signalled
- 240 metres long
- High quality interior
There would need to be some platform lengthening between Cambridge and Kings Lynn.
Leeds Services
Leeds currently has two tph from Kings Cross and Manchester Piccadilly has three tph from Euston.
Leeds also has a daily direct service to Aberdeen.
I suspect that there could be a sorting out at Leeds, which would mean it gets a third service from London.
Conclusion
If something similar to what I have proposed is possible, it looks like as many as an extra seven tph can be accommodated between Kings Cross and the North.
The Anonymous Widower 