A Long Journey Home
A friend had booked between London and Edinburgh today on the 13:00 LNER train from King’s Cross. She was also travelling with her miniature Schnauzer.
.We had arranged to meet at Marylebone, so I could help them across London to King’s Cross and have a much-needed hot chocolate in King’s Cross before they caught the train North and I went to a meeting organised by my cardiologist.
I had checked out King’s Cross earlier and there was trouble with srveral delayed and cancelled trains.
It wasn’t strikes or bad management from LNER and the problem is explained in this article from the Yorkshire Evening Post, which is entitled Trains From Leeds To London Cancelled Or Delayed After Thieves Steal Signalling Cables From Railway Tracks.
In the end we made the train in time and also had time to have a hot chocolate in LEON, whilst we sat out the back with the dog.
We were texting each other most of the afternoon and with assistance from Real Time Trains, the journey went as follows.
- The train left King’s Cross at 13:08, which was eight minutes late.
- By Peterborough, the train was running seventeen minutes late.
- The driver kept this delay until Retford, where he lost another eighty minutes.
- The train was now running 97 minutes late and this grew by four more minutes by Newcastle.
- My friend reported that they stopped at Newcastle, as they had no driver.
- In the end, LNER found a driver or a way for the current driver to continue to Edinburgh and the train left Newcastle after a thirty minute stop.
- The train was now two hours and ten minutes late.
- Eventually, it pulled into Edinburgh, two hours and five minutes late, after the driver had picked up a few minutes on the approach to Edinburgh.
Note.
- The incoming train that formed this service arrived in King’s Cross from Edinburgh seventy two minutes late, mainly because of the cable theft. It should have arrived and returned to Edinburgh an hour earlier. But it arrived conveniently to form the 13:00 to Scotland.
- As the train presentation team turned the train in nineteen minutes instead of twenty-one, they saved a couple of minutes.
- I suspect the delay at Retford was getting through the area without any signalling.
- Had the driver run out of hours by Newcastle, as he had been in the cab for four-and-a-half hours?
- Normally, four-and-a-half hours would have enabled the driver to have driven to Edinburgh.
These are my thoughts.
Cable Theft
In the days of British Rail, I did some work for British Rail using my software called Daisy, which led to a report entitled Failure Reporting And Analysis On British Rail, which was written by J. S. Firth CEng, MIEE, MIRSE, who worked for SigTech, which was a Business Unit of the British Railways Board.
If anybody who has a legitimate reason to read the report, I still have the complimentary copy sent to me by Mr. Firth and would be happy to provide a copy.
I did flag up a project called Unauthorised Cable Removal And Fault Triage, as one of the winners in the First Of A Kind 2022 competition organised by the Dept of BEIS.
If there is anything I can do to help, let me know.
Problems In France
A friend in France told me that there is a problem with stealing overhead electrification cables in France.
This article on RFI is entitled Copper Wire Thieves Force France’s High-Speed TGV To Go Slow.
There are several similar stories on French and other European web sites.
Signalling Using Radio
The East Coast Main Line is being signalled using modern ERTMS digital signalling, where drivers read the signals on an in-cab display, which is connected by radio to the signalling system.
This extract from Wikipedia describes the first project.
In June 2020 it was reported that the UK government would provide £350 million to fund the UK’s first digital signalling system on a long-distance rail route. The signalling is to be fitted on a 100-mile (161 km) section of the East Coast Main Line between Kings Cross, London, and Lincolnshire, which will allow trains to run closer together and increase service frequency, speed and reliability. No date for when the new technology, already in use on the Thameslink lines at London Bridge and some London Underground lines, has been given.
If the cables are removed will this reduce crime?
LNER Delay Repay
My friend will be entitled for a full refund of her single ticket.
This page on the LNER web site gives full details.
Note.
- You have 28 days to claim.
- If you have a return ticket, you may be entitled to something for that leg of the journey.
I would add, that you should always keep all your tickets, in case the return journey goes belly-up.
Thales Supports Rollout Of UK Digital Railway Programme
The title of this post, is the same as that of this press release from Porterbrook.
The press release starts with these bullet points.
- Thales wins the fitment and supply of European Train Control System (ETCS) onboard units for Class 43 high-speed train retrofit.
- Implementation will benefit passengers and freight operators by delivering additional capacity, improving performance, enhancing safety and reducing the costs of operating the national railway.
Which is followed by this explanation.
As a key player in delivering this digital transformation, Thales has today been awarded the contract for the Class 43 First in Class (FiC) design and fitment project that will use Network Rail’s new measurement train power cars in the Infrastructure Measurement fleet. The FiC project will culminate in a Type approval from the Office of Road and Rail to enable subsequent Class 43 ETCS fleet fitments.
The new Thales onboard system will be integrated as part of the Digital Railway train control system, and will enable rolling stock to operate on ETCS-equipped infrastructure. The onboard equipment is an evolution of Thales’s level 1 ETCS system that has been successfully deployed worldwide.
This could be a smart move.
- Type Approval will mean that the Class 43 power cars of ScotRail’s Inter7Cities, Great Western Railway’s Castles and those of other operators can be retrofitted.
- Will the New Measurement Train also be used to test the digital signalling, as it covers all the tracks in Great Britain in a four-weekly cycle?
- Fitting of these iconic 1970’s designed power cars with the latest modern signalling could be a design exercise, that helps in the fitting of ETCS to other older and unusual locomotives.
I still think, that because of the iconic nature of the InterCity125, that we may see a conversion of Class 43 power cars to more sustainable operation.
- All power cars now have modern MTU diesel engines, which probably could be fuelled by hydrogen.
- The simplest way would be to run them on HVO, as I wrote about in Powered By HVO.
- Some operations like the short format trains in Scotland and South-West England might be more suitable for battery-electric operation.
- Given that there are 167 in operation or in store, it would be a good-sized order for the company converting the power cars.
I also believe that zero-carbon InterCity 125s could be an unusual tourist attraction.
Conclusion
The fitting of digital signalling to Class 43 power cars is a good move, but is it the start of a wider plan to bring these iconic trains up to modern standards.
Improving The North Throat Of York Station Including Skelton Bridge Junction
On the thirty mile stretch of the East Coast Main Line, between York and Northallerton stations, the route is mainly four tracks.
But three miles North of York there is Skelton Bridge over the River Ouse, which is shown in this Google Map.
Zooming closer, I clipped this second Google Map.
Note.
- There are actually two bridges over the River Ouse.
- The East bridge is a double-track bridge and is the original stone arch bridge.
- The West bridge was added later and I suspect has little architectural merit.
- The tracks on both sides of the bridge are extremely complicated.
If you look at the timings, trains seem to take one of two timings between York and Northallerton.
- 17-18 minutes, which is almost an average speed of 100 mph.
- 27 minutes, which is 67 mph.
Incidentally, one of Drax’s long biomass trains managed a time of 27 minutes.
Would going faster save any minutes?
- A 110 mph average would give a time of 16.4 minutes
- A 120 mph average would give a time of 15 minutes
- A 125 mph average would give a time of 14.4 minutes
- A 140 mph average would give a time of 12.9 minutes
On the face of it, it doesn’t appear that there are very large time savings, to be achieved.
On the other hand, if all trains can pass through Skelton Bridge and its complicated junction, without slowing, delays will be minimised and timetables can be faster.
But there is an anomaly in all the express trains that pass through York station. All stop, except those planned for East Coast Trains. In fact, their trains won’t stop between Stevenage and Newcastle.
The obvious solution to the Skelton Bridge problem, is to do what British Rail didn’t have the courage to do, when they electrified the East Coast Main Line in the 1980s. And that is to demolish the bridge and build a stylish modern four-track bridge!
It would eliminate many of the things, that could go wrong and would surely improve reliability. This could help to maintain a higher operating speed.
But would it be allowed by the Planning Authorities and the Heritage Taliban?
Hopefully, it doesn’t matter!
- I am a Control Engineer and mathematical modeller, who has programmed some immensely complex systems in the last fifty-five years.
- I have also flown light aircraft on instruments for many hours, where you control the plane according to what Air Traffic Controllers and the instruments tell you.
My experience tells me that, it would be possible to control a busy junction, like Skelton Bridge safely, by a well-programmed computer system helping the driver, to arrive at the junction at the right time to go straight through.
I also believe that if modern in-cab digital ERTMS signalling can handle twenty-four tph on Thameslink going to and from scores of stations, then it can handle Skelton Bridge Junction.
In Could ERTMS And ETCS Solve The Newark Crossing Problem?, I proposed a similar solution to the problem at Newark.
What Will Be The Fastest Times Possible Between London King’s Cross And Leeds?
According to media reports, it is likely that the Eastern Leg of High Speed Two will be scrapped on kicked into the long grass.
So out of curiosity, what times can be achieved between London King’s Cross and Leeds.
Wikipedia says this about digital signalling on the line.
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.
Note.
- Woolmer Green is 23.8 miles North of King’s Cross and a short distance to the North of the Digswell Viaduct.
- Dalton-on-Tees is North of Doncaster, where the line to Leeds leaves the East Coast Main Line.
The 186 mile journey to Leeds can be broken down into these sections.
- King’s Cross and Woolmer Green – 23.8 miles – 16 minutes – 89.3 mph
- Woolmer Green and Doncaster – 132.2 miles – 85 minutes – 93.3 mph
- Doncaster and Leeds – 29.9 miles – 32 minutes – 56 mph
In Will Avanti West Coast’s New Trains Be Able To Achieve London Euston and Liverpool Lime Street In Two Hours?, I estimated that each stop in an electric Hitachi Class 802 train takes eight minutes, which includes six minutes accelerating and decelerating and a two minute dwell time in the station.
- Services between London Euston and Leeds typically stop three times, so this means there are four acceleration/deceleration cycles, if you add in the one split between London Kings Cross and Leeds.
- There are also three dwell times of perhaps two minutes in the intermediate stations.
- This would mean that a total of thirty minutes must be added to calculate the journey time.
If the train averaged these speeds over 186 miles, the following times would be achieved.
- 125 mph – 89 minutes
- 130 mph – 86 minutes
- 140 mph – 80 minutes
- 150 mph – 74 minutes
- 160 mph – 70 minutes
Adding in the thirty minutes for stops gives some reasonable timings for between London King’s Cross and Leeds.
There are ways that times could be reduced.
Removal Of Level Crossings
This course of action always brings results, but is hated by the local users.
This article in The Times is entitled HS2 Eastern Leg To Leeds Axed, where there is said.
The government’s long-awaited Integrated Rail Plan also commits to full electrification of the Midland Main Line from London St Pancras to Sheffield, as well as upgrades to the East Coast Main Line. The Times understands this includes removing level crossings, which will help reduce journey times.
Every little helps!
More Running At Higher Speeds
From my figures, it appears that roughly a ten mph increase in average speed reduces journey time by up to six minutes.
So the more running at 140 mph or even faster the better.
It should be noted that the Selby Diversion on the East Coast Main Line was designed by British Rail for 160 mph The Wikipedia entry says this.
The line was the first purpose-built section of high-speed railway in the UK having a design speed of 125 mph; however, research by British Rail in the 1990s indicated that the route geometry would permit up to 160 mph operation, subject to the necessary overhead line equipment and signalling upgrades.
Upgrading the line for higher speeds would be a way of reducing the journey time.
- Curves could be better profiled.
- Full digital signalling with perhaps even some degree of automatic control could be introduced.
- More robust overhead line equipment could be installed.
- Some sections of slab track could be laid.
- Level crossing removal.
I wouldn’t be surprised if one of the new Hitachi trains within a few years could be able to average 140 mph between London King’s Cross and Leeds, with a possible 160 mph average speed in the future.
Faster Acceleration And Deceleration
If the three-minute acceleration and deceleration times can be reduced to two minutes this will save eight minutes on the journey.
Quicker Dwell Times
Why not?
Automatic Train Control Through The Newark Crossing
I proposed this in Could ERTMS And ETCS Solve The Newark Crossing Problem? and I believe it would allow trains on the East Coast Main Line at full speed if they didn’t stop at Newark station.
Automatic Train Control Through The Welwyn North
As at the Newark Crossing, I believe ERTMS and ETCS could increase speeds over the Digswell Viaduct and through Welwyn North station.
High-Speed Two Classic Compatible Trains
These faster trains could bring the time down further, if they were to run the service.
Sample Times
I wouldn’t be surprised to see with full digital signalling and a 125 mph average between London King’s Cross and Leeds.
- 125 mph Base Time – 89 minutes.
- Four Acceleration/Deceleration section at 6 minutes each – 24 minutes.
- Three Dwell Times at 2 minutes each – 6 minutes
This would mean a total time of one hour and 59 minutes.
Uprate that to 140 mph and faster acceleration and deceleration.
- 140 mph Base Time – 80 minutes.
- Four Acceleration/Deceleration section at 4 minutes each – 16 minutes.
- Three Dwell Times at 2 minutes each – 6 minutes
This would mean a total time of one hour and 42 minutes.
Uprate that to 160 mph and faster acceleration and deceleration.
- 160 mph Base Time – 70 minutes.
- Four Acceleration/Deceleration section at 4 minutes each – 16 minutes.
- Three Dwell Times at 2 minutes each – 6 minutes
This would mean a total time of one hour and 32 minutes.
A Non-Stop Service
This would speed up the service.
With a 125 mph average between London King’s Cross and Leeds.
- 125 mph Base Time – 89 minutes.
- One Acceleration/Deceleration section at 6 minutes each – 6 minutes.
This would mean a total time of 95 minutes.
Uprate that to 140 mph and faster acceleration and deceleration.
- 140 mph Base Time – 80 minutes.
- One Acceleration/Deceleration section at 4 minutes each – 4 minutes.
This would mean a total time of 84 minutes.
Uprate that to 160 mph and faster acceleration and deceleration.
- 160 mph Base Time – 70 minutes.
- One Acceleration/Deceleration section at 4 minutes each – 4 minutes.
This would mean a total time of 74 minutes.
These compare with a proposed time of one hour and 21 minutes on the original plan to High Speed Two.
Conclusion
It looks like a non-stop service between London and Leeds running at 140 mph, with perhaps some sections at perhaps a bit faster, could be able to match the High Speed Two times.
London To Glasgow Train Journey Record Bid Fails By Just 21 Seconds
The title of this post, is the same as that of this article on ITV.com.
These are the first three paragraphs.
An attempt to break the 36-year-old record for the fastest train journey between London and Glasgow has failed.
Avanti West Coast’s Royal Scot train arrived at Glasgow Central 21 seconds behind the record of three hours, 52 minutes and 40 seconds set by British Rail in December 1984, according to rail expert Mark Smith, who was onboard.
Mr Smith, founder of Seat61.com, wrote on Twitter that a temporary speed limit on the track in Carstairs, South Lanarkshire, “cost us 90 seconds”.
It appears to be a valiant attempt that failed by a small margin.
I have a few thoughts.
The Trains
The British Rail 1984 record was set by an Advanced Passenger Train (APT) and today’s run was by a nine-car Class 390 train.
- The design speed of the APT was 155 mph and that of a Class 390 train is 140 mph.
- Service speed of both trains was and is 125 mph.
- Record speed of the APT was 162 mph and that of a Class 390 train is 145 mph.
- Both trains employ similar tilt technology to go faster.
At a brief look the performance of these two trains is very similar.
The InterCity 225
The InterCity 225 train is the ringer in this race to the North.
- The design speed is 140 mph.
- The service speed is 125 mph
- The record speed of an InterCity 225 is 161.7 mph.
- The train doesn’t use tilting technology.
- The train was built after the APT around 1990.
- The train holds the record between London Kings Cross and Edinburgh at thirty seconds under three-and-a-half hours.
- To rub things in, one of these trains, even holds the London Euston and Manchester Piccadilly record.
But there can’t be much wrong with the InterCity 225 trains as a few are being brought back into service, whilst LNER are waiting for ten new bi-mode trains to be delivered.
Hitachi Class 80x Trains
The various variants of Class 800 trains run to Edinburgh and I’m sure they will run to Glasgow.
- The design speed is 140 mph.
- The service speed is 125 mph
If an InterCity 225 can go between Edinburgh and London in around three-and-a-half hours, I can’t see why these trains can’t.
Especially, as Hitachi seem to be able to produce versions like the Class 803 and Class 807 trains, which appear to be lighter and more efficient, as they don’t have any diesel engines.
A Small Margin
I said earlier that it was only a small margin between the times of the APT and the Class 390 train. But why was the InterCity 225 able to run between Kings Cross and Edinburgh at thirty seconds under three-and-a-half hours?
This section in the Wikipedia entry for the Class 91 locomotive is entitled Speed Record. This is the first paragraph.
A Class 91, 91010 (now 91110), holds the British locomotive speed record at 161.7 mph (260.2 km/h), set on 17 September 1989, just south of Little Bytham on a test run down Stoke Bank with the DVT leading. Although Class 370s, Class 373s and Class 374s have run faster, all are EMUs which means that the Electra is officially the fastest locomotive in Britain. Another loco (91031, now 91131), hauling five Mk4s and a DVT on a test run, ran between London King’s Cross and Edinburgh Waverley in 3 hours, 29 minutes and 30 seconds on 26 September 1991. This is still the current record. The set covered the route in an average speed of 112.5 mph (181.1 km/h) and reached the full 140 mph (225 km/h) several times during the run.
It looks from the last sentence of this extract, that the record run of the InterCity 225 train ran up to 140 mph in places, whereas the record run of the APT and today’s run by a Class 390 train were limited to 125 mph.
The Signalling
In the Wikipedia entry for the InterCity 225 train, the following is said.
Thus, except on High Speed 1, which is equipped with cab signalling, British signalling does not allow any train, including the InterCity 225, to exceed 125 mph (201 km/h) in regular service, due to the impracticality of correctly observing lineside signals at high speed.
Note.
- I have regularly flown my Cessna 340 safely at altitude, with a ground speed of around two hundred miles per hour.
- High Speed One has an operating speed of 186 mph.
- Grant Schapps, who is Secretary of State for Transport has a pilot’s licence. So he would understand flight instruments and avionics.
So why hasn’t a system been developed in the thirty years since trains capable of running at 140 mph started running in the UK, to allow them to do it?
It is a ridiculous situation.
We are installing full digital ERTMS in-cab signalling on the East Coast Main Line, but surely a system based on aviation technology could be developed until ERTMS is ready. Or we could install the same system as on High Speed One.
After all, all we need is a system, to make sure the drivers don’t misread the signals.
But then the EU says that all member nations must use ERTMS signalling.
Didn’t we just leave the EU?
Conclusion
By developing our own in-cab digital signalling we could run trains between London and Scotland in around three-and-a-half hours.
The Japanese could even have an off-the-shelf system!
ERTMS sounds like a closed shop to give work to big European companies, who have lobbied the European Commission.
What Is Possible On The East Coast Main Line?
In the Wikipedia entry for the Class 91 locomotive, there is an amazing story.
This picture shows one of these locomotives at Kings Cross.
Note.
- They have a design speed of 140 mph.
- They have a power output of 4.8 MW.
- They were built around 1990 by British Rail at Crewe.
They were designed to run services between London King’s Cross and Edinburgh as fast as possible, as the motive power of the InterCity 225 trains.
This section in the Wikipedia entry for the Class 91 locomotive is entitled Speed Record. This is the first paragraph.
A Class 91, 91010 (now 91110), holds the British locomotive speed record at 161.7 mph (260.2 km/h), set on 17 September 1989, just south of Little Bytham on a test run down Stoke Bank with the DVT leading. Although Class 370s, Class 373s and Class 374s have run faster, all are EMUs which means that the Electra is officially the fastest locomotive in Britain. Another loco (91031, now 91131), hauling five Mk4s and a DVT on a test run, ran between London King’s Cross and Edinburgh Waverley in 3 hours, 29 minutes and 30 seconds on 26 September 1991. This is still the current record. The set covered the route in an average speed of 112.5 mph (181.1 km/h) and reached the full 140 mph (225 km/h) several times during the run.
Note.
- For the British locomotive speed record, locomotive was actually pushing the train and going backwards, as the driving van trailer (DVT) was leading.
- How many speed records of any sort, where the direction isn’t part of the record, have been set going backwards?
- I feel that this record could stand for many years, as it is not very likely anybody will build another 140 mph locomotive in the foreseeable future. Unless a maverick idea for a high speed freight locomotive is proposed.
I have a few general thoughts on the record run between Kings Cross and Edinburgh in three-and-a-half hours.
- I would assume that as in normal operation of these trains, the Class 91 locomotive was leading on the run to the North.
- For various reasons, they would surely have had at least two of British Rail’s most experienced drivers in the cab.
- At that time, 125 mph InterCity 125 trains had been the workhorse of East Coast Main Line for well over ten years, so British Rail wouldn’t have been short of experienced high speed drivers.
- It was a Thursday, so they must have been running amongst normal traffic.
- On Monday, a typical run between Kings Cross and Edinburgh is timetabled to take four hours and twenty minutes.
- High Speed Two are predicting a time of three hours and forty-eight minutes between Euston and Edinburgh via High Speed Two and the West Coast Main Line.
The more you look at it, a sub-three-and-and-a-half hour time, by 1980s-technology on a less-than-perfect railway was truly remarkable.
So how did they do it?
Superb Timetabling
In Norwich-In-Ninety Is A Lot More Than Passengers Think!, I talk about how Network Rail and Greater Anglia created a fast service between Liverpool Street and Norwich.
I suspect that British Rail put their best timetablers on the project, so that the test train could speed through unhindered.
Just as they did for Norwich-in-Ninety and probably will be doing to the East Coast Main Line to increase services and decrease journey times.
A Good As ERTMS Signalling
Obviously in 1991, there was no modern digital in-cab signalling and I don’t know the standard of communication between the drivers and the signallers.
On the tricky sections like Digswell Viaduct, through Hitchin and the Newark Crossing were other trains stopped well clear of any difficult area, as modern digital signalling can anticipate and take action?
I would expect the test train got a signalling service as good as any modern train, even if parts of it like driver to signaller communication may have been a bit experimental.
There may even have been a back-up driver in the cab with the latest mobile phone.
It must have been about 1991, when I did a pre-arranged airways join in my Cessna 340 on the ground at Ipswich Airport before take-off on a direct flight to Rome. Air Traffic Control had suggested it to avoid an intermediate stop at say Southend.
The technology was arriving and did it help the drivers on that memorable run North ensure a safe and fast passage of the train?
It would be interesting to know, what other equipment was being tested by this test train.
A Possible Plan
I suspect that the plan in 1991 was to use a plan not unlike one that would be used by Lewis Hamilton, or in those days Stirling Moss to win a race.
Drive a steady race not taking any chances and where the track allows speed up.
So did British Rail drive a steady 125 mph sticking to the standard timetable between Kings Cross and Edinburgh?
Then as the Wikipedia extract indicated, at several times during the journey did they increase the speed of the train to 140 mph.
And the rest as they say was an historic time of 3 hours, 29 minutes and 30 seconds. Call it three-and-a-half-hours.
This represented a start-to-stop average speed of 112.5 mph over the 393 miles of the East Coast Main Line.
Can The Current Trains Achieve Three-And-A-Half-Hours Be Possible Today?
Consider.
- The best four hours and twenty minutes timings of the Class 801 trains, represents an average speed of 90.7 mph.
- The Class 801 trains and the InterCity 225 trains have similar performance.
- There have been improvements to the route like the Hitchin Flyover.
- Full ERTMS in-cab signalling is being installed South of Doncaster.
- I believe ERTMS and ETC could solve the Newark Crossing problem! See Could ERTMS And ETCS Solve The Newark Crossing Problem?
- I am a trained Control Engineer and I believe if ERTMS and ETC can solve the Newark Crossing problem, I suspect they can solve the Digswell Viaduct problem.
- The Werrington Dive Under is being built.
- The approaches to Kings Cross are being remodelled.
I can’t quite say easy-peasy. but I’m fairly certain the Kings Cross and Edinburgh record is under serious threat.
- A massive power supply upgrade to the North of Doncaster is continuing. See this page on the Network Rail web site.
- ERTMS and ETC probably needs to be installed all the way between Kings Cross and Edinburgh.
- There may be a need to minimise the number of slower passenger trains on the East Coast Main Line.
- The Northumberland Line and the Leamside Line may be needed to take some trains from the East Coast Main Line.
Recent Developments Concerning the Hitachi Trains
There have been several developments since the Hitachi Class 800 and Class 801 trains were ordered.
- Serious engineers and commentators like Roger Ford of Modern Railways have criticised the lugging of heavy diesel engines around the country.
- Network Rail have upgraded the power supply South of Doncaster and have recently started to upgrade it between Doncaster and Edinburgh. Will this extensive upgrade cut the need to use the diesel power-packs?
- Hitachi and their operators must have collected extensive in-service statistics about the detailed performance of the trains and the use of the diesel power-packs.
- Hitachi have signed an agreement with Hyperdrive Innovation of Sunderland to produce battery-packs for the trains and two new versions of the trains have been announced; a Regional Battery Train and an Intercity Tri-Mode Battery Train.
- East Coast Trains have ordered five five-car Class 803 trains, each of which will have a small battery for emergency use and no diesel power-packs.
- Avanti West Coast have ordered ten seven-car Class 807 trains, each of which have no battery or diesel power-packs.
And these are just the ones we know about.
The Class 807 Trains And Liverpool
I find Avanti West Coast’s Class 807 trains the most interesting development.
- They have been partly financed by Rock Rail, who seem to organise train finance, so that the train operator, the train manufacturer all get the best value, by finding good technical solutions.
- I believe that these trains have been designed so they can run between Euston and Liverpool Lime Street stations in under two hours.
- Does the absence of battery or diesel power-packs save weight and improve performance?
- Euston and Liverpool Lime Street in two hours would be an average of only 96.8 mph.
- If the Class 807 trains could achieve the same start-stop average of 112.5 mph achieved by the InterCity 225 test run between Kings Cross and Edinburgh, that would mean a Euston and Liverpool Lime Street time of one hour and forty-three minutes.
- Does Thunderbird provision on the West Coast Main Line for the Class 390 trains mean that the Class 807 trains don’t need emergency power?
- Have diesel power-packs been rarely used in emergency by the Hitachi trains?
I believe the mathematics show that excellent sub-two hour times between Euston and Liverpool Lime Street are possible by Avanti West Coast’s new Class 807 trains.
The Class 803 Trains And Edinburgh
East Coast Trains ordered their Class 803 trains in March 2019, nine months before Avanti West Coast ordered their Class 807 trains.
In Trains Ordered For 2021 Launch Of ‘High-Quality, Low Fare’ London – Edinburgh Service, I outlined brief details of the trains and the proposed service.
- FirstGroup is targeting the two-thirds of passengers, who fly between London and Edinburgh.
- They are also targeting business passengers, as the first train arrives in Edinburgh at 10:00.
- The trains are five-cars.
- The trains are one class with onboard catering, air-conditioning, power sockets and free wi-fi.
- Stops will be five trains per day with stops at Stevenage, Newcastle and Morpeth.
- The trains will take around four hours.
- The service will start in Autumn 2021.
I also thought it would be a successful service
As I know Edinburgh, Liverpool and London well, I believe there are similarities between the Euston-Liverpool Lime Street and Kings Cross-Edinburgh routes.
- Both routes are between two cities known all over the world.
- Both routes are fully-electrified.
- Both routes have the potential to attract passengers from other transport modes.
The two services could even be run at similar speeds.
- Euston-Liverpool Lime Street in two hours will be at 96.8 mph
- Kings Cross-Edinburgh in four hours will be at 98.3 mph.
Does this explain the similar lightweight trains?
Could Lightweight Trains Help LNER?
There is one important factor, I haven’t talked about in detail in this post. Batteries and diesel power-packs on the Hitachi trains.
I have only mentioned them in the following circumstances.
- When trains are not fitted with battery and/or diesel power-packs.
- When battery developments are being undertaken.
Let’s consider the LNER fleet.
- LNER has thirteen nine-car Class 800 trains, each of which has five diesel power-packs
- LNER has ten five-car Class 800 trains, each of which has three diesel power-packs
- LNER has thirty nine-car Class 801 trains, each of which has one diesel power-pack
- LNER has twelve five-car Class 801 trains, each of which has one diesel power-pack
There are sixty-five trains, 497 coaches and 137 diesel power-packs.
And look at their destinations.
- Aberdeen – No Electrification from Edinburgh
- Alnmouth – Fully Electrified
- Berwick-upon-Tweed – Fully Electrified
- Bradford Forster Square – Fully Electrified
- Darlington – Fully Electrified
- Doncaster – Fully Electrified
- Durham – Fully Electrified
- Edinburgh – Fully Electrified
- Glasgow – Fully Electrified
- Grantham – Fully Electrified
- Harrogate – No Electrification from Leeds – Possible Battery Destination
- Huddersfield – No Electrification from Leeds – Possible Battery Destination – Probable Electrification
- Hull – No Electrification from Temple Hirst Junction – Possible Battery Destination
- Inverness – No Electrification from Stirling
- Leeds – Fully Electrified
- Lincoln – No Electrification from Newark North Gate – Possible Battery Destination
- Middlesbrough – No Electrification from Northallerton – Possible Battery Destination
- Newcastle – Fully Electrified
- Newark North Gate – Fully Electrified
- Northallerton – Fully Electrified
- Peterborough – Fully Electrified
- Skipton – Fully Electrified
- Retford – Fully Electrified
- Stevenage – Fully Electrified
- Stirling – Fully Electrified
- Sunderland – No Electrification from Northallerton – Possible Battery Destination
- Wakefield Westgate – Fully Electrified
- York – Fully Electrified
The destinations can be summarised as followed.
- Not Electrified – 2
- Possible Battery Destination – 6
- Fully Electrified – 20
This gives a total of 28.
Could the trains be matched better to the destinations?
- Some routes like Edinburgh, Glasgow, Newcastle and Stirling could possibly be beneficially handled by lightweight trains without any diesel or battery power-packs.
- Only Aberdeen and Inverness can’t be reached by all-electric or battery-electric trains.
- In LNER Seeks 10 More Bi-Modes, I proposed a hydrogen-electric flagship train, that would use hydrogen North of the existing electrification.
There certainly appear to be possibilities.
Example Journey Times To Edinburgh
This table shows the various time for particular start-stop average speeds between Kings Cross and Edinburgh.
- 80 mph – 4:54
- 85 mph – 4:37
- 90 mph – 4:12
- 98.2 mph – 4:00
- 100 mph – 3:56
- 110 mph – 3:34
- 120 mph – 3:16
- 125 mph – 3:08
Note.
- Times are given in h:mm.
- A few mph increase in average speed reduces journey time by a considerable amount.
The figures certainly show the value of high speed trains and of removing bottlenecks, as average speed is so important.
Decarbonisation Of LNER
LNER Seeks 10 More Bi-Modes was based on an article in the December 2020 Edition of Modern Railways, with the same title. These are the first two paragraphs of the article.
LNER has launched the procurement of at least 10 new trains to supplement its Azuma fleet on East Coast main line services.
In a Prior Information Notice published on 27 October, the operator states it is seeking trains capable of operating under 25kW overhead power with ‘significant self-power capability’ for operation away from overhead wires. ‘On-board Energy Storage for traction will be specified as a mandatory requirement to reduce, and wherever practical eliminate, diesel usage where it would otherwise be necessary, although LNER anticipates some degree of diesel traction may be required to meet some self-power requirements. Suppliers tendering are asked to detail their experience of designing and manufacturing a fleet of multi-mode trains with a range of traction options including battery-electric, diesel-electric, hydrogen-electric, battery-diesel, dual fuel and tri-mode.
From this, LNER would appear to be serious about decarbonisation and from the destination list I published earlier, most services South of the Scottish Central Belt can be decarbonised by replacing diesel-power packs with battery power-packs.
That last bit, sounds like a call for innovation to provide a solution to the difficult routes to Aberdeen and Inverness. It also looks as if it has been carefully worded not to rule anybody out.
This press release from Hitachi is entitled Hitachi And Eversholt Rail To Develop GWR Intercity Battery Hybrid Train – Offering Fuel Savings Of More Than 20%.
It announces the Hitachi Intercity Tri-mode Battery Train, which is described in this Hitachi infographic.
As the Hitachi press release is dated the 15th of December 2020, which is after the publication of the magazine, it strikes me that LNER and Hitachi had been talking.
At no point have Hitachi stated what the range of the train is on battery power.
To serve the North of Scotland these gaps must be bridged.
- Aberdeen and Edinburgh Haymarket – 130 miles
- Inverness and Stirling – 146 miles
It should also be noted that distances in Scotland are such, that if these gaps could be bridged by battery technology, then probably all of the North of Scotland’s railways could be decarbonised. As Hitachi are the major supplier of Scotland’s local and regional electric trains, was the original Prior Information Notice, written to make sure Hitachi responded?
LNER run nine-car Class 800 trains on the two long routes to Aberdeen and Inverness.
- These trains have five diesel power-packs under coaches 2,3, 5, 7 and 8.
- As five-car Class 800 trains have diesel power-packs under coaches 2, 3 and 4, does this mean that Hitachi can fit diesel power-packs under all cars except for the driver cars?
- As the diesel and battery power-packs appear to be interchangeable, does this mean that Hitachi could theoretically build some very unusual trains?
- Hitachi’s trains can be up to twelve-cars in normal mode and twenty-four cars in rescue mode.
- LNER would probably prefer an all Azuma fleet, even if a few trains were a bit longer.
Imagine a ten-car train with two driver and eight intermediate cars, with all of the intermediate cars having maximum-size battery-packs.
Supposing, one or two of the battery power-packs were to be replaced with a diesel power-pack.
There are a lot of possibilities and I suspect LNER, Hitachi and Hyperdrive Innovation are working on a train capable of running to and from the North of Scotland.
Conclusion
I started by asking what is possible on The East Coast Main Line?
As the time of three-and-a-half hours was achieved by a short-formation InterCity 225 train in 1991 before Covids, Hitchin, Kings Cross Remodelling, Power Upgrades, Werrington and lots of other work, I believe that some journeys between Kings Cross and Edinburgh could be around this time within perhaps five years.
To some, that might seem an extraordinary claim, but when you consider that the InterCity 225 train in 1991 did it with only a few sections of 140 mph running, I very much think it is a certainly at some point.
As to the ultimate time, earlier I showed that an average of 120 mph between King’s Cross and Edinburgh gives a time of 3:16 minutes.
Surely, an increase of fourteen minutes in thirty years is possible?
Does Harlow Need An Improved Train Service?
I ask this question, because I am increasingly seeing articles like this one on My London, which is entitled The Large Town Just Outside London Desperate For A London Underground Station.
The town is Harlow.
This Google Map shows the West Anglia Main Line, as it runs through the North of the town.
Note.
- Harlow Town station towards the South West of the map.
- Harlow Mill station towards the North East of the map.
- The West Anglia Main Line running between the two stations.
On the face of it the town seems well-served by the trains.
Harlow Town Station
This Google Map shows Harlow Town station to a larger scale.
Note.
- The station has four platforms.
- The station has full step-free access.
- The station has 697 parking spaces with 18 fully accessible spaces.
The station was built in the 1950s and is a Grade II Listed building.
Train services at the station are as follows.
- Stratford and Bishops Stortford – 2 tph – via Lea Bridge, Tottenham Hale, Waltham Cross, Cheshunt, Broxbourne and Sawbridgeworth
- London Liverpool Street and Cambridge North – 1 tph – via Tottenham Hale, Cheshunt, Broxbourne, Bishop’s Stortford, Audley End, Whittlesford Parkway and Cambridge
- London Liverpool Street and Cambridge North – 1 tph – via Tottenham Hale, Cheshunt, Broxbourne, Roydon, Sawbridgeworth, Bishop’s Stortford, Stansted Mountfitchet, Elsenham, Newport, Audley End, Great Chesterford, Whittlesford Parkway, Shelford and Cambridge
- London Liverpool Street and Stansted Airport – 1 tph – via Tottenham Hale
- London Liverpool Street and Stansted Airport – 1 tph – via Tottenham Hale and Stansted Mountfitchet
Note.
- tph is trains per hour
- The Stansted services are fast services and take 29 minutes between London Liverpool Street and Harlow Town.
- The other services seem to take a few minutes longer.
- London Liverpool Street or Stratford and Tottenham Hale both get six tph.
- Bishop’s Stortford gets a four tph service from Harlow Town.
- The two Cambridge stations only get two tph.
Harlow Town station has a fairly good service, but it could probably be improved.
Harlow Mill Station
This Google Map shows Harlow Mill station to a larger scale.
Note.
- The station has two platforms.
- The station has step-free access to the London-bound platform only.
- The station has 29 parking spaces with 1 fully accessible space.
The station was built in the 1840s and gets about 13 % of the passengers compared to Harlow Town station.
Train services at the station are as follows.
- Stratford and Bishops Stortford – 1 tph – via Lea Bridge, Tottenham Hale, Waltham Cross, Cheshunt, Broxbourne and Sawbridgeworth
- London Liverpool Street and Cambridge North – 1 tph – via Tottenham Hale, Cheshunt, Broxbourne, Roydon, Sawbridgeworth, Bishop’s Stortford, Stansted Mountfitchet, Elsenham, Newport, Audley End, Great Chesterford, Whittlesford Parkway, Shelford and Cambridge
Note.
- tph is trains per hour
- London Liverpool Street or Stratford and Tottenham Hale both get only two tph.
- Bishop’s Stortford gets two tph service from Harlow Mill.
- The two Cambridge stations only get one tph.
Unless you lived or worked nearby, I doubt you would be likely to use Harlow Mill station.
Recent And Planned Improvements
These improvements are planned and it is very unlikely they won’t happen.
Class 710 Trains
London Overground now runs new four-car Class 710 trains between London Liverpool Street and Cheshunt.
- Each has 189 seats and can accept 489 standing passengers.
- Busy services to Cheshunt will probably are pair of trains.
- There are four tph between Cheshunt and London.
- Will the trains shave a few minutes from journey times?
This massive increase in capacity and train quality must attract some passengers to change to and from the London Overground at Cheshunt.
Class 720 Trains
Greater Anglia has 133 new five-car Class 720 trains on order.
- Each has 540 seats and can accept 145 standing passengers.
- They are 100 mph trains.
- Busy services through Harlow will probably be a pair of these trains.
These new trains will be a massive increase in capacity and should attract more passengers to the route.
Class 745 Trains
Greater Anglia has recently introduced ten new twelve-car Class 745 trains on Stansted Express services.
- Each has 767 seats.
- They are 100 mph trains.
- They run a two tph service between Harlow Town and London Liverpool Street station and Stansted Airport.
These new trains should attract more passengers to the route.
Crossrail
Services through Harlow will connect to Crossrail at both London Liverpool Street and Stratford.
Will this mean that some passengers will switch from the Victoria Line to Crossrail for their onward journeys?
- Crossrail will have more capacity than the Victoria Line.
- Bond Street, Canary Wharf, Heathrow, Paddington and West London will be easier by Crossrail.
- Victoria and Waterloo will probably be easier by the Victoria Line.
- London Liverpool Street station’s new connection to the Northern Line will give easier access to parts of South London.
- London Liverpool Street station will have much improved step-free connections to all London Underground lines.
Crossrail will certainly change the way many people travel between Harlow and London.
Four Lines Modernisation
This page on the Transport for London web site explains the Four Lines Modernisation. This is the first paragraph.
We’re transforming the Circle, District, Hammersmith & City and Metropolitan lines. When the work is done we’ll be able to run trains more frequently and reliably to make journeys faster and more comfortable.
The project should increase Peak Hour capacity by 33 %.
This will benefit those who change trains at London Liverpool Street between the West Anglia Main Line and the Circle and Metropolitan Lines.
Possible Improvements
These are possible improvements that may happen.
Crossrail 2
It is unlikely, that a start will be made on Crossrail 2 in the near future.
Victoria Line Improvements
The Victoria Line will continue to do, what it has done reliability for over fifty years.
But there could be improvements.
- Walthamstow Central station will have an additional step-free entrance.
- Highbury and Islington station will become a full step-free station.
- Oxford Circus station will be expanded and become a full step-free station.
I also suspect that engineers will find a way to increase the frequency to forty tph.
Four Tracks On The West Anglia Main Line
There are two reasons for four-tracking sections of the West Anglia Main Line.
- To separate Crossrail 2 trains from fast expresses to Stansted and Cambridge.
- To speed up services to and from Stansted Airport.
However four-tracking the route between Tottenham Hale and Broxbourne stations would probably be very beneficial.
- Stansted Airport and Cambridge services could be speeded up.
- Extra services could be run on the West Anglia Main Line.
- It could make it easier to extend the Overground from Cheshunt.
Four-tracking will be needed for Crossrail 2, so there is surely the possibility, that it could be done earlier to bring benefits to those living along the Lea Valley.
ERTMS Signalling On The West Anglia Main Line
ERTMS Signalling could speed up services and increase their number on the West Anglia Main Line.
It might also enable four-tracking, which would be very disruptive to both train services and road traffic to be delayed.
Station Improvements On The West Anglia Main Line
The stations between London Liverpool Street and Cambridge are a poor bunch with only Tottenham Hale, Northumberland Park, Meridian Water, Waltham Cross, Broxbourne, Harlow Town, Bishop’s Stortford and Audley End having full step-free access.
Some of the other stations need refurbishment and step-free access.
As step-free access will be needed for Crossrail 2, why not setup a rolling program of station improvements.
Level Crossings On The West Anglia Main Line
There are four level crossings on the route to the South of Broxbourne, including three at Cheshunt, Enfield Lock and Brimsdown stations.
They all need to be removed for safety reasons.
New Trains And Capacity
The new trains being rolled out by Greater Anglia and the London Overground will certainly have effects on the services on the West Anglia Main Line.
- The better performance could speed up services by a few minutes.
- The capacity increase on the new trains should be welcome.
- The trains will be of better quality than those they replace.
I also wonder, if the better quality of the trains and their facilities will surely attract more passengers. I suspect the train companies hope so!
Extending The London Overground
This map from cartometro.com shows Cheshunt station and Cheshunt Junction just to the South.
Note.
- The two platforms on the West Anglia Main Line and the single bay platform for the London Overground.
- The level crossing to the North of Cheshunt station.
- The comprehensive Cheshunt Junction which trains to go between the Southbury Loop and the West Anglia Main Line.
Cheshunt Junction is occasionally used by Greater Anglia trains to access the Southbury Loop.
It certainly seems to me, that the Overground could connect to the West Anglia Main Line.
- All trains from London going to the North of Cheshunt could use Platform 2.
- All trains to London coming from the North of Cheshunt could use Platform 1.
- The bay Platform 3 would still be available to turn local trains on the Southbury Loop.
- An extra crossover could probably be inserted to allow trains from London on the West Anglia Main Line to use Platform 3.
London Overground trains could run to a terminal further North.
Trains Between Cheshunt And London
It is worth looking at the number of trains between Cheshunt and London.
- Greater Anglia -2 tph – London Liverpool Street and Hertford East via West Anglia Main Line
- Greater Anglia – 2 tph – Stratford and Bishop’s Stortford via West Anglia Main Line
- Greater Anglia – 2 tph – London Liverpool Street and Cambridge North via West Anglia Main Line
- Greater Anglia – 4 tph – London Liverpool Street and Stansted Airport via West Anglia Main Line
- London Overground – 4 tph – London Liverpool Street and Cheshunt via the Southbury Loop
This means that the West Anglia Main Line has 10 tph and the Southbury Loop has 4 tph.
This suggests possibilities.
- Move some services from the West Anglia Main Line to the Southbury Loop.
- Extend some or all of the London Overground trains to the North of Cheshunt.
- Stations like Bishop’s Stortford, Broxbourne, Harlow, Hertford East and Ware could get extra services to London.
- The new services would connect to extra stations without changing trains.
Very little new infrastructure would be required.
Bishop’s Stortford Station As A London Overground Destination
Bishop’s Stortford station has these trains to and from London.
- Greater Anglia – 2 tph – Stratford and Bishop’s Stortford
- Greater Anglia – 2 tph – London Liverpool Street and Cambridge North
- Greater Anglia – 2 tph – London Liverpool Street and Stansted Airport
Consider.
- Bishop’s Stortford station could probably easily handle up to an extra two tph.
- London Overground’s Class 710 trains only have an operating speed of only 75 mph.
- The trains may need a speed upgrade to serve Bishop’s Stortford, as their speed could slow the Cambridge and Stansted Airport expresses.
If the London Overground services ran to Bishop’s Stortford station, all the smaller stations South of Bishop’s Stortford, could travel to and from Stansted Airport with a single change.
Bishop’s Stortford station may be a possibility, as a destination of two tph on the London Overground route to London.
Broxbourne Station As A London Overground Destination
Broxbourne station has these trains to and from London.
- Greater Anglia -2 tph – London Liverpool Street and Hertford East
- Greater Anglia – 2 tph – Stratford and Bishop’s Stortford
- Greater Anglia – 2 tph – London Liverpool Street and Cambridge North
Consider.
- Broxbourne station could probably easily handle up to an extra two tph.
- As Broxbourne is only 3.2 miles and six minutes to the North of Cheshunt, the 75 mph speed of the London Overground’s Class 710 trains may not be a problem.
Broxbourne station may be a possibility, as a destination of up to two tph on the London Overground route to London.
Harlow Town Station As A London Overground Destination
Harlow Town station has these trains to and from London.
- Greater Anglia – 2 tph – Stratford and Bishop’s Stortford
- Greater Anglia – 2 tph – London Liverpool Street and Cambridge North
- Greater Anglia – 2 tph – London Liverpool Street and Stansted Airport
Consider.
- Harlow Town station could probably easilyhandle up to an extra four tph.
- If one is needed there would appear to be space for a turnback facility or an extra platform.
- As Harlow Town is only 5.4 miles and eight minutes to the North of Cheshunt, the 75 mph speed of the London Overground’s Class 710 trains may not be a problem.
If the London Overground services ran to Harlow Town station, all the smaller stations South of Harlow Town, could travel to and from Stansted Airport with a single change.
Harlow Town station may be a possibility, as a destination of up to four tph on the London Overground route to London.
Hertford East Station As A London Overground Destination
Hertford East station has these trains to and from London.
- Greater Anglia -2 tph – London Liverpool Street and Hertford East
- There is an extra tph in the Peak.
Consider.
- Hertford East station has platforms long enough for eight-car trains and may need modification to accommodate a pair of Greater Anglia’s Class 720 trains.
- Ware station would need to be remodelled to increase frequency above three tph.
- As the route from Broxbourne is on a branch line, the 75 mph speed of the London Overground’s Class 710 trains may not be a problem.
Hertford East station may be a possibility, as a destination of up to two tph on the London Overground route to London.
Conclusion
I think the best two destinations of the London Overground service to the North of Cheshunt would be Harlow and Hertford East.
- Trains could terminate at Harlow Town station to connect with Stansted Express and Cambridge trains.
- It appears that the slightly shorter Class 710 trains may have advantages when using the short platforms at Hertford East station.
Perhaps each destination should receive two tph.
- Harlow Town would be connected to the Overground.
- Passengers using stations between Hackney Downs and Cheshunt on the Southbury Loop would change at Harlow Town to and from Cambridge and Stansted Airport.
- But the biggest benefit would be that two paths on the West Anglia Main Line would be released, as the two tph to Hertford East would be using the Southbury Loop.
I feel there are possibilities to increase the number of trains on the West Anglia Main Line without adding expensive extra tracks.
Will Hitachi Announce A High Speed Metro Train?
As the UK high speed rail network increases, we are seeing more services and proposed services, where local services are sharing tracks, where trains will be running at 125 mph or even more.
London Kings Cross And Cambridge/Kings Lynn
This Great Northern service is run by Class 387 trains.
- Services run between London Kings Cross and King’s Lynn or Cambridge
- The Class 387 trains have a maximum operating speed of 110 mph.
- The route is fully electrified.
- The trains generally use the fast lines on the East Coast Main Line, South of Hitchin.
- Most trains on the fast lines on the East Coast Main Line are travelling at 125 mph.
When in the future full digital in-cab ERTMS signalling is implemented on the East Coast Main Line, speeds of up to 140 mph should be possible in some sections between London Kings Cross and Hitchin.
The Digswell Viaduct Problem
I also believe that digital signalling may be able to provide a solution to the twin-track bottleneck over the Digswell Viaduct.
Consider.
- Airliners have been flown automatically and safely from airport to airport for perhaps four decades.
- The Victoria Line in London, has been running automatically and safely at over twenty trains per hour (tph) for five decades. It is now running at over 30 tph.
- I worked with engineers developing a high-frequency sequence control system for a complicated chemical plant in 1970.
We also can’t deny that computers are getting better and more capable.
For these reasons, I believe there could be an ERTMS-based solution to the problem of the Digswell Viaduct, which could be something like this.
- All trains running on the two track section over the Digswell Viaduct and through Welwyn North station would be under computer control between Welwyn Garden City and Knebworth stations.
- Fast trains would be slowed as appropriate to create spaces to allow the slow trains to pass through the section.
- The train drivers would be monitoring the computer control, just as they do on the Victoria Line.
Much more complicated automated systems have been created in various applications.
The nearest rail application in the UK, is probably the application of digital signalling to London Underground’s Circle, District, Hammersmith & City and Metropolitan Lines.
This is known at the Four Lines Modernisation and it will be completed by 2023 and increase capacity by up to twenty-seven percent.
I don’t think it unreasonable to see the following maximum numbers of services running over the Digswell Viaduct by 2030 in both directions in every hour.
- Sixteen fast trains
- Four slow trains
That is one train every three minutes.
Currently, it appears to be about ten fast and two slow.
As someone, who doesn’t like to be on a platform, when a fast train goes through, I believe that some form of advanced safety measures should be installed at Welwyn North station.
It would appear that trains between London Kings Cross and King’s Lynn need to have this specification.
- Ability to run at 125 mph on the East Coast Main Line
- Ability to run at 140 mph on the East Coast Main Line, under control of full digital in-cab ERTMS signalling.
This speed increase could reduce the journey time between London Kings Cross and Cambridge to just over half-an-hour with London Kings Cross and King’s Lynn under ninety minutes.
The only new infrastructure needed would be improvements to the Fen Line to King’s Lynn to allow two tph, which I think is needed.
Speed improvements between Hitchin and Cambridge could also benefit timings.
London Kings Cross And Cambridge/Norwich
I believe there is a need for a high speed service between London Kings Cross and Norwich via Cambridge.
- The Class 755 trains, that are capable of 100 mph take 82 minutes, between Cambridge and Norwich.
- The electrification gap between Ely and Norwich is 54 miles.
- Norwich station and South of Ely is fully electrified.
- Greater Anglia’s Norwich and Cambridge service has been very successful.
With the growth of Cambridge and its incessant need for more space, housing and workers, a high speed train between London Kings Cross and Norwich via Cambridge could tick a lot of boxes.
- If hourly, it would double the frequency between Cambridge and Norwich until East-West Rail is completed.
- All stations between Ely and Norwich get a direct London service.
- Cambridge would have better links for commuting to the city.
- Norwich would provide the quality premises, that Cambridge is finding hard to develop.
- London Kings Cross and Cambridge would be just over half an hour apart.
- If the current London Kings Cross and Ely service were to be extended to Norwich, no extra paths on the East Coast Main Line would be needed.
- Trains could even split and join at Cambridge or Ely to give all stations a two tph service to London Kings Cross.
- No new infrastructure would be required.
The Cambridge Cruiser would become the Cambridge High Speed Cruiser.
London Paddington And Bedwyn
This Great Western Railway service is run by Class 802 trains.
- Services run between London Paddington and Bedwyn.
- Services use the Great Western Main Line at speeds of up to 125 mph.
- In the future if full digital in-cab ERTMS signalling is implemented, speeds of up to 140 mph could be possible on some sections between London Paddington and Reading.
- The 13.3 miles between Newbury and Bedwyn is not electrified.
As the service would need to be able to run both ways between Newbury and Bedwyn, a capability to run upwards of perhaps thirty miles without electrification is needed. Currently, diesel power is used, but battery power would be better.
London Paddington And Oxford
This Great Western Railway service is run by Class 802 trains.
- Services run between London Paddington and Oxford.
- Services use the Great Western Main Line at speeds of up to 125 mph.
- In the future if full digital in-cab ERTMS signalling is implemented, speeds of up to 140 mph could be possible on some sections between London Paddington and Didcot Parkway.
- The 10.3 miles between Didcot Parkway and Oxford is not electrified.
As the service would need to be able to run both ways between Didcot Parkway and Oxford, a capability to run upwards of perhaps thirty miles without electrification is needed. Currently, diesel power is used, but battery power would be better.
Local And Regional Trains On Existing 125 mph Lines
In The UK, in addition to High Speed One and High Speed Two, we have the following lines, where speeds of 125 mph are possible.
- East Coast Main Line
- Great Western Main Line
- Midland Main Line
- West Coast Main Line
Note.
- Long stretches of these routes allow speeds of up to 125 mph.
- Full digital in-cab ERTMS signalling is being installed on the East Coast Main Line to allow running up to 140 mph.
- Some of these routes have four tracks, with pairs of slow and fast lines, but there are sections with only two tracks.
It is likely, that by the end of the decade large sections of these four 125 mph lines will have been upgraded, to allow faster running.
If you have Hitachi and other trains thundering along at 140 mph, you don’t want dawdlers, at 100 mph or less, on the same tracks.
These are a few examples of slow trains, that use two-track sections of 125 nph lines.
- East Midlands Railway – 1 tph – Leicester and Lincoln – Uses Midland Main Line
- East Midlands Railway – 1 tph – Liverpool and Norwich – Uses Midland Main Line
- East Midlands Railway – 2 tph – St. Pancras and Corby – Uses Midland Main Line
- Great Western Railway – 1 tph – Cardiff and Portsmouth Harbour – Uses Great Western Main Line
- Great Western Railway – 1 tph – Cardiff and Taunton – Uses Great Western Main Line
- Northern – 1 tph – Manchester Airport and Cumbria – Uses West Coast Main Line
- Northern – 1 tph – Newcastle and Morpeth – Uses East Coast Main Line
- West Midlands Trains – Some services use West Coast Main Line.
Conflicts can probably be avoided by judicious train planning in some cases, but in some cases trains capable of 125 mph will be needed.
Southeastern Highspeed Services
Class 395 trains have been running Southeastern Highspeed local services since 2009.
- Services run between London St. Pancras and Kent.
- Services use Speed One at speeds of up to 140 mph.
- These services are planned to be extended to Hastings and possibly Eastbourne.
The extension would need the ability to run on the Marshlink Line, which is an electrification gap of 25.4 miles, between Ashford and Ore.
Thameslink
Thameslink is a tricky problem.
These services run on the double-track section of the East Coast Main Line over the Digswell Viaduct.
- 2 tph – Cambridge and Brighton – Fast train stopping at Hitchin, Stevenage and Finsbury Park.
- 2 tph – Cambridge and Kings Cross – Slow train stopping at Hitchin, Stevenage, Knebworth, Welwyn North, Welwyn Garden City, Hatfield, Potters Bar and Finsbury Park
- 2 tph – Peterborough and Horsham – Fast train stopping at Hitchin, Stevenage and Finsbury Park.
Note.
- These services are run by Class 700 trains, that are only capable of 100 mph.
- The fast services take the fast lines South of the Digswell Viaduct.
- South of Finsbury Park, both fast services cross over to access the Canal Tunnel for St, Pancras station.
- I am fairly certain, that I have been on InterCity 125 trains running in excess of 100 mph in places between Finsbury Park and Stevenage.
It would appear that the slow Thameslink trains are slowing express services South of Stevenage.
As I indicated earlier, I think it is likely that the Kings Cross and King’s Lynn services will use 125 mph trains for various reasons, like London and Cambridge in under half an hour.
But if 125 mph trains are better for King’s Lynn services, then they would surely improve Thameslink and increase capacity between London and Stevenage.
Looking at average speeds and timings on the 25 miles between Stevenage and Finsbury Park gives the following.
- 100 mph – 15 minutes
- 110 mph – 14 minutes
- 125 mph – 12 minutes
- 140 mph – 11 minutes
The figures don’t appear to indicate large savings, but when you take into account that the four tph running the Thameslink services to Peterborough and Cambridge stop at Finsbury Park and Stevenage and have to get up to speed, I feel that the 100 mph Class 700 trains are a hindrance to more and faster trains on the Southern section of the East Coast Main Line.
It should be noted, that faster trains on these Thameslink services would probably have better acceleration and and would be able to execute faster stops at stations.
There is a similar less serious problem on the Midland Main Line branch of Thameslink, in that some Thameslink services use the fast lines.
A couple of years ago, I had a very interesting chat with a group of East Midlands Railway drivers. They felt that the 100 mph Thameslink and the 125 mph Class 222 trains were not a good mix.
The Midland Main Line services are also becoming more complicated, with the new EMR Electric services between St. Pancras and Corby, which will be run by 110 mph Class 360 trains.
Hitachi’s Three Trains With Batteries
Hitachi have so far announced three battery-electric trains. Two are based on battery packs being developed and built by Hyperdrive Innovation.
Hyperdrive Innovation
Looking at the Hyperdrive Innovation web site, I like what I see.
Hyperdrive Innovation provided the battery packs for JCB’s first electric excavator.
Note that JCB give a five-year warranty on the Hyperdrive batteries.
Hyperdrive have also been involved in the design of battery packs for aircraft push-back tractors.
The battery capacity for one of these is given as 172 kWh and it is able to supply 34 kW.
I was very surprised that Hitachi didn’t go back to Japan for their batteries, but after reading Hyperdrive’s web site about the JCB and Textron applications, there would appear to be good reasons to use Hyperdrive.
- Hyperdrive have experience of large lithium ion batteries.
- Hyperdrive have a design, develop and manufacture model.
- They seem to able to develop solutions quickly and successfully.
- Battery packs for the UK and Europe are made in Sunderland.
- Hyperdrive are co-operating with Nissan, Warwick Manufacturing Group and Newcastle University.
- They appear from the web site to be experts in the field of battery management, which is important in prolonging battery life.
- Hyperdrive have a Taiwanese partner, who manufactures their battery packs for Taiwan and China.
- I have done calculations based on the datasheet for their batteries and Hyperdrive’s energy density is up with the best
I suspect, that Hitachi also like the idea of a local supplier, as it could be helpful in the negotiation of innovative applications. Face-to-face discussions are easier, when you’re only thirty miles apart.
Hitachi Regional Battery Train
The first train to be announced was the Hitachi Regional Battery Train, which is described in this Hitachi infographic.
Note.
- It is only a 100 mph train.
- The batteries are to be designed and manufactured by Hyperdrive Innovation.
- It has a range of 56 miles on battery power.
- Any of Hitachi’s A Train family like Class 800, 802 or 385 train can be converted to a Regional Battery Train.
No orders have been announced yet.
But it would surely be very suitable for routes like.
- London Paddington And Bedwyn
- London Paddington And Oxford
It would also be very suitable for extensions to electrified suburban routes like.
- London Bridge and Uckfield
- London Waterloo and Salisbury
- Manchester Airport and Windermere.
- Newcastle and Carlisle
It would also be a very sound choice to extend electrified routes in Scotland, which are currently run by Class 385 trains.
Hitachi InterCity Tri-Mode Battery Train
The second train to be announced was the Hitachi InterCity Tri-Mode Battery Train, which is described in this Hitachi infographic.
Note.
- Only one engine is replaced by a battery.
- The batteries are to be designed and manufactured by Hyperdrive Innovation.
- Typically a five-car Class 800 or 802 train has three diesel engines and a nine-car train has five.
- These trains would obviously be capable of 125 mph on electrified main lines and 140 mph on lines fully equipped with digital in-cab ERTMS signalling.
Nothing is said about battery range away from electrification.
Routes currently run from London with a section without electrification at the other end include.
- London Kings Cross And Harrogate – 18.3 miles
- London Kings Cross And Hull – 36 miles
- London Kings Cross And Lincoln – 16.5 miles
- London Paddington And Bedwyn – 13.3 miles
- London Paddington And Oxford – 10.3 miles
In the March 2021 Edition of Modern Railways, LNER are quoted as having aspirations to extend the Lincoln service to Cleethorpes.
- With all energy developments in North Lincolnshire, this is probably a good idea.
- Services could also call at Market Rasen and Grimsby.
- Two trains per day, would probably be a minimum frequency.
But the trains would need to be able to run around 64 miles each way without electrification. Very large batteries and/or charging at Cleethorpes will be needed.
Class 803 Trains For East Coast Trains
East Coast Trains have ordered a fleet of five Class 803 trains.
- These trains appear to be built for speed and fast acceleration.
- They have no diesel engines, which must save weight and servicing costs.
- But they will be fitted with batteries for emergency power to maintain onboard train services in the event of overhead line failure.
- They are planned to enter service in October 2021.
Given that Hyperdrive Innovation are developing traction batteries for the other two Hitachi battery trains, I would not be the least bit surprised if Hyperdrive were designing and building the batteries for the Class 803 trains.
- Hyperdrive batteries are modular, so for a smaller battery you would use less modules.
- If all coaches are wired for a diesel engine, then they can accept any power module like a battery or hydrogen pack, without expensive redesign.
- I suspect too, that the battery packs for the Class 803 trains could be tested on an LNER Class 801 train.
LNER might also decide to replace the diesel engines on their Class 801 trains with an emergency battery pack, if it were more energy efficient and had a lighter weight.
Thoughts On The Design Of The Hyperdrive innovation Battery Packs
Consider.
- Hitachi trains have a sophisticated computer system, which on start-up can determine the configuration of the train or whether it is more than one train running as a longer formation or even being hauled by a locomotive.
- To convert a bi-mode Class 800 train to an all-electric Class 801 the diesel engines are removed. I suspect that the computer is also adjusted, but train formation may well be totally automatic and independent of the driver.
- Hyperdrive Innovation’s battery seem to be based on a modular system, where typical modules have a capacity of 5 kWh, weighs 32 Kg and has a volume of 0.022 cu metres.
- The wet mass of an MTU 16V 1600 R80L diesel engine commonly fitted to AT-300 trains of different types is 6750 Kg or nearly seven tonnes.
- The diesel engine has a physical size of 1.5 x 1.25 x 0.845 metres, which is a volume of 1.6 cubic metres.
- In How Much Power Is Needed To Run A Train At 125 mph?, I calculated that a five-car Class 801 electric train, needed 3.42 kWh per vehicle-mile to maintain 125 mph.
- It is likely, than any design of battery pack, will handle the regenerative braking.
To my mind, the ideal solution would be a plug compatible battery pack, that the train’s computer thought was a diesel engine.
But then I have form in the area of plug-compatible electronics.
At the age of sixteen, for a vacation job, I worked in the Electronics Laboratory at Enfield Rolling Mills.
It was the early sixties and one of their tasks was at the time replacing electronic valve-based automation systems with new transistor-based systems.
The new equipment had to be compatible to that which it replaced, but as some were installed in dozens of places around the works, they had to be able to be plug-compatible, so that they could be quickly changed. Occasionally, the new ones suffered infant-mortality and the old equipment could just be plugged back in, if there wasn’t a spare of the new equipment.
So will Hyperdrive Innovation’s battery-packs have the same characteristics as the diesel engines that they replace?
- Same instantaneous and continuous power output.
- Both would fit the same mountings under the train.
- Same control and electrical power connections.
- Compatibility with the trains control computer.
I think they will as it will give several advantages.
- The changeover between diesel engine and battery pack could be designed as a simple overnight operation.
- Operators can mix-and-match the number of diesel engines and battery-packs to a given route.
- As the lithium-ion cells making up the battery pack improve, battery capacity and performance can be increased.
- If the computer, is well-programmed, it could reduce diesel usage and carbon-emissions.
- Driver conversion from a standard train to one equipped with batteries, would surely be simplified.
As with the diesel engines, all battery packs could be substantially the same across all of Hitachi’s Class 80x trains.
What Size Of Battery Would Be Possible?
If Hyperdrive are producing a battery pack with the same volume as the diesel engine it replaced, I estimate that the battery would have a capacity defined by.
5 * 1.6 / 0.022 = 364 kWh
In an article in the October 2017 Edition of Modern Railways, which is entitled Celling England By The Pound, Ian Walmsley says this in relation to trains running on the Uckfield Branch, which is not very challenging.
A modern EMU needs between 3 and 5 kWh per vehicle mile for this sort of service.
As a figure of 3.42 kWh per vehicle-mile to maintain 125 mph, applies to a Class 801 train, I suspect that a figure of 3 kWh or less could apply to a five-car Class 800 train trundling at around 80-100 mph to Bedwyn, Cleethorpes or Oxford.
- A one-battery five-car train would have a range of 24.3 miles
- A two-battery five-car train would have a range of 48.6 miles
- A three-battery five-car train would have a range of 72.9 miles
Note.
- Reducing the consumption to 2.5 kWh per vehicle-mile would give a range of 87.3 miles.
- Reducing the consumption to 2 kWh per vehicle-mile would give a range of 109.2 miles.
- Hitachi will be working to reduce the electricity consumption of the trains.
- There will also be losses at each station stop, as regenerative braking is not 100 % efficient.
But it does appear to me, that distances of the order of 60-70 miles would be possible on a lot of routes.
Bedwyn, Harrogate, Lincoln and Oxford may be possible without charging before the return trip.
Cleethorpes and Hull would need a battery charge before return.
A Specification For A High Speed Metro Train
I have called the proposed train a High Speed Metro Train, as it would run at up to 140 mph on an existing high speed line and then run a full or limited stopping service to the final destination.
These are a few thoughts.
Electrification
In some cases like London Kings Cross and King’s Lynn, the route is already electrified and batteries would only be needed for the following.
- Handling regenerative braking.
- Emergency power in case of overhead line failure.
- Train movements in depots.
But if the overhead wires on a branch line. are in need of replacement, why not remove them and use battery power? It might be the most affordable and least disruptive option to update the power supply on a route.
The trains would have to be able to run on both types of electrification in the UK.
- 25 KVAC overhead.
- 750 VDC third rail.
This dual-voltage capability would enable the extension of Southeastern Highspeed services.
Operating Speed
The trains must obviously be capable of running at the maximum operating speed on the routes they travel.
- 125 mph on high speed lines, where this speed is possible.
- 140 mph on high speed lines equipped with full digital in-cab ERTMS signalling, where this speed is possible.
The performance on battery power must be matched with the routes.
Hitachi have said, that their Regional Battery trains can run at up to 100 mph, which would probably be sufficient for most secondary routes in the UK and in line with modern diesel and electric multiple units.
Full Digital In-cab ERTMS Signalling
This will be essential and is already fitted to some of Hitachi’s trains.
Regenerative Braking To Batteries
Hitachi’s battery electric trains will probably use regenerative braking to the batteries, as it is much more energy efficient.
It also means that when stopping at a station perhaps as much as 70-80% of the train’s kinetic energy can be captured in the batteries and used to accelerate the train.
In Kinetic Energy Of A Five-Car Class 801 Train, I showed that at 125 mph the energy of a full five-car train is just over 100 kWh, so batteries would not need to be unduly large.
Acceleration
This graph from Eversholt Rail, shows the acceleration and deceleration of a five-car Class 802 electric train.
As batteries are just a different source of electric power, I would think, that with respect to acceleration and deceleration, that the performance of a battery-electric version will be similar.
Although, it will only achieve 160 kph instead of the 200 kph of the electric train.
I estimate from this graph, that a battery-electric train would take around 220 seconds from starting to decelerate for a station to being back at 160 kph. If the train was stopped for around eighty seconds, a station stop would add five minutes to the journey time.
London Kings Cross And Cleethorpes
As an example consider a service between London Kings Cross and Cleethorpes.
- The section without electrification between Newark and Cleethorpes is 64 miles.
- There appear to be ambitions to increase the operating speed to 90 mph.
- Local trains seem to travel at around 45 mph including stops.
- A fast service between London Kings Cross and Cleethorpes would probably stop at Lincoln Central, Market Rasen and Grimsby Town.
- In addition, local services stop at Collingham, Hykeham, Barnetby and Habrough.
- London Kings Cross and Newark takes one hour and twenty minutes.
- London Kings Cross and Cleethorpes takes three hours and fifteen minutes with a change at Doncaster.
I can now calculate a time between Kings Cross and Cleethorpes.
- If a battery-electric train can average 70 mph between Newark and Cleethorpes, it would take 55 minutes.
- Add five minutes for each of the three stops at Lincoln Central, Market Rasen and Grimsby Town
- Add in the eighty minutes between London Kings Cross and Newark and that would be two-and-a-half hours.
That would be very marketing friendly and a very good start.
Note.
- An average speed of 80 mph would save seven minutes.
- An average speed of 90 mph would save twelve minutes.
- I suspect that the current bi-modes would be slower by a few minutes as their acceleration is not as potent of that of an electric train.
I have a feeling London Kings Cross and Cleethorpes via Lincoln Central, Market Rasen and Grimsby Town, could be a very important service for LNER.
Interiors
I can see a new lightweight and more energy efficient interior being developed for these trains.
In addition some of the routes, where they could be used are popular with cyclists and the current Hitachi trains are not the best for bicycles.
Battery Charging
Range On Batteries
I have left this to last, as it depends on so many factors, including the route and the quality of the driving or the Automatic Train Control
Earlier, I estimated that a five-car train with all three diesel engines replaced by batteries, when trundling around Lincolnshire, Oxfordshire or Wiltshire could have range of up to 100 miles.
That sort of distance would be very useful and would include.
- Ely and Norwich
- Newark and Cleethorpes
- Salisbury and Exeter
It might even allow a round trip between the East Coast Main Line and Hull.
The Ultimate Battery Train
This press release from Hitachi is entitled Hitachi And Eversholt Rail To Develop GWR Intercity Battery Hybrid Train – Offering Fuel Savings Of More Than 20%.
This is a paragraph.
The projected improvements in battery technology – particularly in power output and charge – create opportunities to replace incrementally more diesel engines on long distance trains. With the ambition to create a fully electric-battery intercity train – that can travel the full journey between London and Penzance – by the late 2040s, in line with the UK’s 2050 net zero emissions target.
Consider.
- Three batteries would on my calculations give a hundred mile range.
- Would a train with no diesel engines mean that fuel tanks, radiators and other gubbins could be removed and more or large batteries could be added.
- Could smaller batteries be added to the two driving cars?
- By 2030, let alone 2040, battery energy density will have increased.
I suspect that one way or another these trains could have a range on battery power of between 130 and 140 miles.
This would certainly be handy in Scotland for the two routes to the North.
- Haymarket and Aberdeen, which is 130 miles without electrification.
- Stirling and Inverness, which is 111 miles without electrification, if the current wires are extended from Stirling to Perth, which is being considered by the Scottish Government.
The various sections of the London Paddington to Penzance route are as follows.
- Paddington and Newbury – 53 miles – electrified
- Newbury and Taunton – 90 miles – not electrified
- Taunton and Exeter – 31 miles – not electrified
- Exeter and Plymouth – 52 miles – not electrified
- Plymouth and Penzance – 79 miles – not electrified
The total length of the section without electrification between Penzance and Newbury is a distance of 252 miles.
This means that the train will need a battery charge en route.
I think there are three possibilities.
- Trains can take up to seven minutes for a stop at Plymouth. As London and Plymouth trains will need to recharge at Plymouth before returning to London, Plymouth station could be fitted with comprehensive recharge facilities for all trains passing through. Perhaps the ideal solution would be to electrify all lines and platforms at Plymouth.
- Between Taunton and Exeter, the rail line runs alongside the M5 motorway. This would surely be an ideal section to electrify, as it would enable battery electric trains to run between Exeter and both Newbury and Bristol.
- As some trains terminate at Exeter, there would probably need to be charging facilities there.
I believe that the date of the late 2040s is being overly pessimistic.
I suspect that by 2040 we’ll be seeing trains between London and Aberdeen, Inverness and Penzance doing the trips without a drop of diesel.
But Hitachi are making a promise of London and Penzance by zero-carbon trains, by the late-2040s, because they know they can keep it.
And Passengers and the Government won’t mind the trains being early!
Conclusion
This could be a very useful train to add to Hitachi’s product line.