The Anonymous Widower

LNER Seeks 10 More Bi-Modes

The title of this post, is the same as that of an article in the December 2020 Edition of Modern Railways.

This is the opening paragraph.

LNER has launched the procurement of at least 10 new trains to supplement its Azuma fleet on East Coast Main Line services.

Some other points from the article.

  • It appears that LNER would like to eliminate diesel traction if possible.
  • On-board energy storage is mentioned.
  • No form of power appears to be ruled out, including hydrogen.
  • LNER have all 65 of their Azumas in service.

The last paragraph is very informative.

Infrastructure upgrades are due to prompt a timetable recast in May 2022 (delayed from December 2021) from which point LNER will operate 6.5 trains per hour, out of Kings Cross, compared to five today. As an interim measure, LNER is retaining seven rakes of Mk 4 coaches hauled by 12 Class 91 locomotives to supplement the Azuma fleet and support its timetable ambitions until the new trains are delivered.

These are my thoughts.

More Azumas?

Surely, It would require a very innovative train at perhaps a rock-bottom price from another manufacturer, for LNER to not acquire extra Azumas.

Classic-Compatible Trains For High Speed Two

Consider.

  • Alstom, Bombardier, CAF, Hitachi, Siemens and Talgo are involved in the competition to design Classic-Compatible trains for High Speed Two.
  • As the York and Edinburgh section of the East Coast Main Line will eventually be upgraded and used by High Speed Two services,
  • Also in the December 2020 Edition of Modern Railways, is an article entitled 140 mph Plan For ECML North of York, which details improvements proposed by Northern Powerhouse Rail to improve services between Leeds and Edinburgh.

Would there be advantages to High Speed Two, LNER and Network Rail and Northern Powerhouse Rail, to have some commonality between the  High Speed Two, LNER and Northern Powerhouse Rail fleets?

Hopefully, the various government-controlled companies are talking.

A Flagship Train For Aberdeen And Inverness

The InterCity 225s, which consist of a Class 91 locomotive and a rake of nine Mark 4 coaches, have given thirty years of top-quality service on the East Coast Main Line and appear to be being asked to handle services until the new trains are delivered.

  • Full-length InterCity 225s are 245 metres long and have 406 Standard and 129 First seats or a total of 535 seats.
  • Nine-car Azumas are 234 metres long and have 510 Standard and 101 First seats or a total of 611 seats.
  • Two five-car Azumas working as a pair are 260 metres long and have 604 seats. They can also be handled on most platforms, that are used by LNER.
  • The power of a Class 91 locomotive is 4.83 MW.
  • A Class 91 locomotive is 19.4 metres long and weighs 81.5 tonnes.
  • Both Azumas and InterCity 225s can maintain 125 mph with ease on the East Coast Main Line and both will be able to reach 140 mph with in-cab signalling.

There would appear to be nothing wrong with locomotive-hauled high speed services, in terms of capacity and performance.

In The Mathematics Of A Hydrogen-Powered Freight Locomotive, I laid out my thoughts on a high-powered railway locomotive fuelled by hydrogen, that used one or possibly two Rolls-Royce gas-turbine engines to generate electricity for traction.

With all the work done, by the companies bidding for Classic-Compatible trains for High Speed Two, into very high speed trains, I believe that at least one company could build a locomotive with this specification.

  • 140 mph operation on 25 KVAC overhead electrification. As I said, that was done by British Rail almost forty years ago.
  • Ability to use full digital in-cab signalling. This is on its way and already working in some applications.
  • 110 mph operation on hydrogen. Hitachi are planning 100 mph battery trains, so it should be possible.
  • 400 mile range on one filling of hydrogen. This is working in Germany.
  • Ability to be upgraded to higher speeds on electric power, should the East Coast Main Line be upgraded for higher speeds in the future. The train manufacturers are probably ahead of track designers with this one.

Such a locomotive would be key to building a train with this specification.

  • Sub-four hour time between London and Edinburgh.
  • Sub-seven hour time between London and Aberdeen, which has 130 miles without wires.
  • Sub-eight hour time between London and Inverness, which has 146 miles without wires.
  • Hydrogen would be used, where there is no electrification.
  • Zero-carbon at all times.
  • A maximum length of 260 metres, which I estimate could give a passenger capacity of around 640 seats.
  • The last coach would include a driving van trailer.
  • They would not need the ability to split and join, except for the purpose of rescue, as there is no platform on the route, that could accommodate the resulting 520 metre long pair of trains.

I estimate that a fleet of around seven trains would be needed to run the current Aberdeen and Inverness services.

A few extra thoughts.

  • Could they have an up-market more spacious interior, as their main competition to the North of Scotland, would be the budget airlines?
  • Could they be slightly longer, with some platform work at Kings Cross and other stations?
  • Add a few extra trains to the order, so that extra services between London and Edinburgh could be added to the timetable.
  • Could the driving van trailer incorporate an observation car?
  • Hydrogen refuelling shouldn’t be a problem in Scotland, as the country is developing a hydrogen economy.
  • Hydrogen refuelling wouldn’t be needed in England, as they’d be using the electrification.
  • As an alternative to hydrogen, sustainable aviation fuel could be used.

I suspect that Talgo, would be very happy to tender.

  • They are developing hydrogen-powered trains as I wrote in Talgo: Our Hydrogen Train Will Be Ready In 2023.
  • They are building a factory in Scotland, close to the Forth Bridge.
  • Because of the factory, Talgo probably have the ear of the Scottish Government, who would probably welcome a Scottish-built train.
  • A shorter version of these trains without the hydrogen, could be the design for a High Speed Two Classic-Compatible train, for which Talgo, are on the short list of suppliers.

What better way, would there be to sell your hydrogen-powered high speed trains, than to give prospective clients a ride up from London to the factory in the luxury version?

A New Elizabethan

I can remember The Elizabethan, which was a steam-hauled non-stop express between London and Edinburgh between 1953 and 1961.

  • The steam-hauled train took six-hours-and-a-half.
  • It used to be the longest non-stop railway service in the world.
  • Today, the service could be run by the current or refurbished Azumas or perhaps a new flagship train, built for the service.
  • It could be easily under four hours.

It could be an interesting concept, to increase capacity between London and Edinburgh.

Splitting And Joining

Some of LNER’s philosophy to serve places like Harrogate, Huddersfield and Middlesbrough, depends on the ability to split and join trains.

A pair of Azumas could leave London and go to Leeds, where they would split, with one train going to Harrogate and the other going to Huddersfield.

When returning to London, the two trains would join at Leeds.

The big advantage of splitting and joining, is that it increases the capacity on the main line, as services can be arranged, so that every path always carries a full-length train. I would expect that LNER would prefer never to run a single five-car Azuma into Kings Cross.

Currently LNER have these paths to and from Kings Cross.

  • 2 tph between London Kings Cross and Leeds
  • 1 tph between London Kings Cross and Lincoln and East Yorkshire
  • 2 tph between London Kings Cross and Edinburgh

Note.

  1. LNER have already started to extend services from Leeds, so will we see splitting and joining being used on one tph at Leeds to provide services to several destinations, throughout the day.
  2. Splitting and joining at Edinburgh is surely another possibility, to serve Stirling and Glasgow, with the same train.
  3. Splitting and joining at York could serve destinations like Middlesbrough, Newcastle, Redcar, Scarborough and Sunderland.
  4. In A Trip To Grantham Station – 4th November 2020, I advocated splitting at Grantham station to serve both Nottingham and Lincoln.

There are a lot of possibilities for splitting and joining.

As LNER has a fleet of twenty-two five-car Azumas, if the new trains are needed to split and join on certain services, this might mean more five-car Azumas are a better buy.

What Will Happen To Nine Car Azumas?

Hitachi have launched the Regional Battery Train concept, the specification of which is given in this Hitachi infographic.

The diesel engines in LNER’s Class 800 trains will be able to be replaced with batteries, making them all-electric trains.

  • Destinations like Cleethorpes, Dundee, Grimsby, Harrogate, Huddersfield, Hull, Lincoln, Middlesbrough Nottingham, Perth, Redcar, Scarborough, Sheffield and Sunderland will be within range of battery electric Azumas.
  • Some destinations would need the ability to charge the train before it returned, but I can see lots of places getting an appropriate service, even if it was just one or two trains per day.
  • Unfortunately, Aberdeen and Inverness would be too far for battery electric Azumas, so services will still need to be run by nine-car bi-mode Azumas.

Five-car battery electric Azumas working in pairs from London could be the key to increasing LNER services.

I can see that LNER may end up with too many nine-car Azumas, if nine-car trains are replaced by pairs of five-car trains to serve two destinations by splitting and joining.

Would it be possible to shorten nine-car Azumas to five-car trains?

These are the formations of the two trains.

  • nine-car: DPTS-MS-MS-TS-MS-TS-MC-MF-DPTF
  • five-car: DPTS-MS-MS-MC-DPTF

It is known, that the trains have a computer, that does a quick check on start-up to determine, what cars are present and correct in the train.

  • This means that if LNER needed twelve-car trains for say London and Edinburgh, they could create a sub-fleet by just buying the requisite number of extra TS (Trailer Standard) and MS (Motor Standard) cars and coupling them up.
  • This feature also means that operators running fleets of five-car Hitachi trains, like TransPennine Express and Hull Trains can increase capacity by just purchasing the extra cars.
  • It would also allow, cars to be shuffled to create viable trains, after say several cars were damaged by vandalism.

All trains these days seem to have this very operator-friendly feature.

With LNER’s trains, I suspect that all cars of the same type are identical.

This would mean, that a nine-car train can be converted to a five-car by removing two TS (Trailer Standard), one MS (Motor Standard) and one MF (Motor First) cars.

The four cars, that have been removed could be reconfigured to form the middle three cars of a new five-car train, which would be completed by adding new DPTS (Driver Pantograph Trailer Standard) and DPTF (Driver Pantograph Trailer First) cars.

An Increase In Paths From 5 To 6.5

This will certainly allow LNER to run more services.

The odd half path could be easy to explain.

  • Hull is a city, that is on the up.
  • I suspect that it could support a five-car direct service from London with a frequency of one tph.
  • But Hull Trains are also running a successful service on the route.

Perhaps a fair solution, would be to allow both LNER and Hull Trains to run a one train per two hour (tp2h) service.

If LNER didn’t want to use the path to just run a five-car train to Hull, there are several possibilities for a split and join.

  • With a Cleethorpes, Lincoln or Nottingham service at Grantham.
  • With a Cleethorpes or Lincoln service at Newark.
  • With a Cleethorpes, Middlesbrough, Sheffield or Sunderland service at Doncaster.

I can only see splitting and joining increasing, which surely means an Azuma order is more likely.

As someone, who spent a working life, writing software to schedule projects, I can’t resist speculating on what to do with the extra whole path, that LNER will be allocated, when the infrastructure allows.

  • Many travellers wouldn’t mind LNER providing more seats between the English and Scottish capitals.
  • Many would like an alternative to flying.
  • Others would like a faster service.
  • Leeds and York will soon be a route, that LNER’s Azumas will be able to use without diesel, because of extra electrification and Azumas with traction batteries.

This leads me to believe that LNER could use the extra path for a third London and Edinburgh service in every hour, that ran via Leeds.

  • Additionally, it might stop at stations like Peterborough, York, Darlington or Newcastle.
  • It could also provide a non-stop London and Leeds service.
  • Some services could go non-stop between London and Edinburgh.
  • The direct London and Edinburgh service would be under four hours.
  • Going via Leeds would add under an hour.

It would be run by a nine-car all-electric Azumas, of which there will be unlikely to be a shortage.

How Many Azumas Could Be Fitted With Batteries Instead Of Diesel Engines?

The Wikipedia entry for the Class 800 train, has a section called Powertrain, where this is said.

Despite being underfloor, the generator units (GU) have diesel engines of V12 formation. The Class 801 has one GU for a five to nine-car set. These provide emergency power for limited traction and auxiliaries if the power supply from the overhead line fails. The Class 800 and Class 802 bi-mode has three GU per five-car set and five GU per nine-car set. A five-car set has a GU situated under vehicles 2/3/4 and a nine-car set has a GU situated under vehicles 2/3/5/7/8.

Consider.

  • Class 807 trains for Aventi West Coast will have no batteries or diesel engines. Does this save weight?
  • Class 803 trains for East Coast Trains will only have a small battery for emergency hotel power, in case of catenary failure. Does this save weight?
  • Saving weight should improve acceleration and deceleration, which could reduce journey times.
  • Removal of diesel engines would reduce the trains carbon footprint.
  • Removal of diesel engines could reduce maintenance costs.
  • Diesel engines are only needed for services that run North of Edinburgh. Other sections without electrification are probably within battery range or could be easily made so.
  • It appears every Motor car (MC, MF and MS) can be fitted with a diesel engine, although in Class 801 trains, only one is fitted. Does that mean that every Motor car in the future, could have a battery?

I think this could lead to the following.

  • The Class 801 trains are fitted with sufficient batteries to enable handling of expected emergencies. These could be similar to those in the Class 803 trains.
  • Enough nine-car Class 800 trains would be kept with diesel engines to work the Aberdeen and Inverness services. These routes at 130 and 146 miles without wires are too long for battery trains, without a succession of chargers along the routes.
  • If a third Edinburgh service were to be introduced, could some of the remainder of the nine-car Class 800 trains be converted to Class 801 trains, by removing the diesel engines?
  • I would expect most of the five-car thirty-six Class 800 trains would be fitted with batteries to run services to destinations, that can be reached on battery power. In a few years time, these will probably mean splitting and joining at Edinburgh, Leeds and other places.
  • Could we even see the twelve five-car Class 801 trains converted to battery electric Class 800 trains, which would surely give maximum flexibility about their use?

If the software on the trains, is as intelligent as it could be and can accept cars with diesel engines, batteries or no extra power, then LNER will have an enormous amount of flexibility, to configure the trains as they need.

I could even see a nine-car Class 800 train with a mix of batteries and diesel engines, that can be used as range extenders, reaching further towards Aberdeen and Inverness.

Consider a five-car Class 800 train with two batteries and a single diesel engine!

  • If I assume that Hitachi’s specification for the Regional Battery Train, is for a five-car train with three diesel engines replaced with battery packs, then a two battery pack train could have a range of 60 km or 37 miles.
  • If the route wasn’t very challenging, and the computer made judicious use of the diesel engine, could the train’s range be extended to beyond the ninety kilometres of the three-battery pack train.
  • The diesel engine could also be used to charge the batteries, before returning to the electrification of the main line.

In Vivarail’s Plans For Zero-Emission Trains, I talked about Adrian Shooter and his concept of a Pop-Up Metro, run for perhaps a year, to test if a Metro service would be viable, instead of spending the money on consultants.

The two-battery pack/one diesel Class 800 train, could run a Pop-Up London Service to test the need for a London service. All it would need is a convenient platform long enough to take a 130 metre long Class 800 train.

Possible destinations to test could include Cleethorpes, Dundee, Glenrothes-with-Thornton, Grimsby, Nottingham, Norwich, Perth, Redcar, Sheffield and Sunderland

Conclusion

There is a lot of scope to develop LNER’s services.

I think it is likely that the order will go to Hitachi.

But as I indicated, I do believe that there is scope for a manufacturer to design a zero-carbon train, that was able to serve the Aberdeen and Inverness.

  • I suspect a fleet of ten trains would be sufficient.
  • Trains would use the 25 KVAC overhead electrification, where it exists and hydrogen or battery power North of the wires.

The trains would also be capable of being upgraded to high speeds, should the East Coast Main Line be turned into a High Speed Line.

I also think, that whatever trains are bought, there will be a large upgrading of the existing Hitachi fleet, which will add batteries to a lot of trains.

November 25, 2020 Posted by | Hydrogen, Transport | , , , , , , , , , , , , , , , , | 8 Comments

Splitting And Joining Of High Speed Two Trains

In Existing Stations Where High Speed Two Trains Will Call, I looked at how existing stations will need to be modified to handle the High Speed Two service pattern described in an article, which is entitled HS2 Minister Backs 18 tph Frequency, in the June 2020 Edition of Modern Railways.

The article states that splitting and joining of trains will take place at three stations; Carlisle, Crewe and East Midlands Hub.

To successfully split and join the pairs of 200 metre long High Speed Two trains, the following will be needed.

  •  400 metre long platforms, that can handle the pair of trains.
  • Excellent signage, so that passengers get into the right train and leave for the right destination.
  • Efficient crew methods, so that drivers are in the correct cabs at the right time.

For many years trains at Cambridge and several places South of London have successfully split and joined.

This video shows two Class 395 trains coupling and uncoupling automatically.

It;s impressive and I suspect High Speed Two’s trains will be equally good or even better at this procedure.

Why Is Split And Join Needed For High Speed Two?

According to the Modern Railways article, the full High Speed Two service will be as follows in trains per hour (tph) and trains per two hours (tp2h)

  1. 1 tph – London Euston and Birmingham Curzon Street via Old Oak Common (OOC) – 400 metres
  2. 2 tph – London Euston and Birmingham Curzon Street via OOC and Birmingham Interchange – 400 metres
  3. 1 tph – London Euston and Lancaster via OOC, Crewe, Warrington Bank Quay, Wigan North Western and Preston – London Euston and Liverpool Lime Street via OOC, Crewe and Runcorn – 200+200 metres with Split/Join at Crewe
  4. 1 tph – London Euston and Liverpool Lime Street via OOC, Crewe and Runcorn – 200 metres
  5. 1 tph – London Euston and Macclesfield via OOC, Stafford and Stoke-on-Trent – 200 metres
  6. 1 tph – London Euston and Manchester Piccadilly via OOC, Birmingham Interchange and Manchester Airport – 400 metres
  7. 2 tph – London Euston and Manchester Piccadilly via OOC and Manchester Airport – 400 metres
  8. 1 tph – London Euston and Edinburgh Waverley via OOC, Preston, Carlisle and Edinburgh Haymarket – London Euston and Glasgow Central via OOC, Preston and Carlisle – 200 +200 metres with Split/Join at Carlisle
  9. 1 tph – London Euston and Edinburgh Waverley via OOC, Birmingham Interchange, Preston, Carlisle and Edinburgh Haymarket – London Euston and Glasgow Central via OOC, Preston and Carlisle – 200 +200 metres with Split/Join at Carlisle
  10. 1 tp2h – Birmingham Curzon Street and Edinburgh Waverley via Wigan North Western, Preston, Lancaster, Oxenholme, Penrith and Edinburgh Haymarket – 200 metres
  11. 1 tp2h – Birmingham Curzon Street and Glasgow Central via Wigan North Western, Preston, Lancaster, Oxenholme, Penrith, Lockerbie and Motherwell – 200 metres
  12. 2 tph – Birmingham Curzon Street and Manchester Piccadilly via Manchester Airport – 200 metres
  13. 2 tph – Birmingham Curzon Street and Leeds via East Midlands Hub – 200 metres
  14. 1 tph – Birmingham Curzon Street and Newcastle via East Midlands Hub, Darlington and Durham – 200 metres
  15. 1 tph – London Euston and Sheffield via OOC and East Midlands Hub – London Euston and Leeds via OOC and East Midlands Hub – 200 + 200 metres with Split/Join at East Midlands Hub
  16. 1 tph – London Euston and Leeds via OOC and East Midlands Hub – 400 metres
  17. 1 tph – London Euston and Leeds via OOC, Birmingham Interchange and East Midlands Hub – 400 metres
  18. 1 tph – London Euston and Sheffield via OOC, East Midlands Hub and Chesterfield – London Euston and York via OOC and East Midlands Hub – 200 + 200 metres with Split/Join at East Midlands Hub
  19. 1tph – London Euston and Newcastle via OOC and York – 200 metres
  20. 1 tph – London Euston and Newcastle via OOC, York and Darlington – 200 metres

Note.

  1. Trains 10 and 11 share the same path in alternate hours.
  2. Birmingham Curzon Street is effectively a second Southern terminus.
  3. Seventeen tph leave London Euston and Old Oak Common for the North, of which eight are 400 metre trains, five are a pair of 200 metre trains and four are 200 metre trains.

As the five pairs of 200 metre trains Split/Join en route, this effectively means, that London Euston is served by twenty-two tph.

It would appear that Split/Join is important, as it allows the same number of train paths between London Euston and the North to support more services.

Could Any Other Trains Be Split And Joined?

I don’t see why not!

There are eight tph going North from London Euston and Old Oak Common, that are 400 metre long trains that don’t Split/Join

  • 3 tph – Birmingham Curzon Street
  • 2 tph – Leeds
  • 3 tph – Manchester Piccadilly

Note.

  1. Each 400 metre train would appear to have a capacity of around 1,100 passengers.
  2. Leeds is also served by another 200 metre train from London.

Effectively, this gives the following passenger capacities between London and the three major cities.

  • Birmingham – 3,300
  • Leeds – 2,750
  • Manchester – 3,300

If these capacities have been carefully predicted, performing a Split/Join on these trains might cause a shortage of capacity.

There are four single 200 metre trains, that could be doubled up for their run to the North.

  1. London Euston and Liverpool Lime Street via OOC, Crewe and Runcorn
  2. London Euston and Macclesfield via OOC, Stafford and Stoke-on-Trent
  3. London Euston and Newcastle via OOC and York
  4. London Euston and Newcastle via OOC, York and Darlington

In theory, these four trains could be doubled to provide extra services.

But there are two problems.

Where Would The Trains Split and Join?

  • Train 1 could Split/Join at Crewe.
  • Train 2 could Split/Join at Stafford, if the platforms were lengthened to accept a pair of 200 metre trains.
  • Trains 3 and 4 would need to stop at East Midlands Hub to Split/Join

It would appear that four extra trains could be run into London Euston, by running all single trains as pairs.

Where Would The Extra Services Terminate?

There are possibilities on the Western leg of High Speed Two.

  • An extra train for Liverpool Lime Street
  • An extra train for Lancaster
  • A direct train for the current Manchester Piccadilly via Wilmslow and Stockport
  • A direct train for Blackpool

But the Eastern leg of High Speed Two is more of a problem.

  • An extra train for Sheffield
  • A direct train for Hull.

Hull could be served via a new junction between High Speed Two and the Hull-Leeds Line to the North-West of Garforth or perhaps by extending a service from Sheffield.

Could Any Services North From Birmingham Curzon Street Be Split And Joined?

These 200 metre services go North from Birmingham Curzon Street station.

  1. 1 tp2h – Birmingham Curzon Street and Edinburgh Waverley via Wigan North Western, Preston, Lancaster, Oxenholme, Penrith and Edinburgh Haymarket
  2. 1 tp2h – Birmingham Curzon Street and Glasgow Central via Wigan North Western, Preston, Lancaster, Oxenholme, Penrith, Lockerbie and Motherwell
  3. 2 tph – Birmingham Curzon Street and Manchester Piccadilly via Manchester Airport
  4. 2 tph – Birmingham Curzon Street and Leeds via East Midlands Hub
  5. 1 tph – Birmingham Curzon Street and Newcastle via East Midlands Hub, Darlington and Durham.

Note that trains 1 and 2 share the same path in alternate hours.

There may be scope to double up some of these trains, to serve extra destinations in the North from Birmingham Curzon Street.

Conclusion

Split/Join is a powerful tool to increase the number of services without spending a fortune on new infrastructure.

 

 

 

 

 

 

 

June 14, 2020 Posted by | Transport | , , , , , | Leave a comment

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.

March 14, 2020 Posted by | Transport | , , , , , | Leave a comment

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.

March 14, 2020 Posted by | Transport | , , , , , , , | Leave a comment

Grand Central Opts For Split And Join

An article in the April 2018 Edition of Modern Railways is entitled Grand Central Appies For Extra Services.

Grand Central wants to run the following services.

  • An extra daily round trip between Sunderland and Kings Cross.
  • An extra service from Bradford to Kings Cross.
  • An early morning service from Wakefield Kirkgate to Kings Cross.
  • A late evening service of two trains; one for Wakefield and one for York, whicj would split at Doncaster.

Cleethorpes would also be served by running West Riding services as two trains, which would split and join at Dncaster.

All this can be done with the current fleet of ten Class 180 trains, supplemented by four extra released by Hull Trains, on delivery of new Class 802 trains.

By running as pairs between Kings Cross and Doncaster, the operator cuts the number of paths needed, on a crowded East Coast Main Line.

Joining and splitting is not without problems.

  • Train timings need to be accurate.
  • Joining and splitting hasn’t been done on the East Coast Main Line before, so would need permission.
  • I suspect that, the process won’t be automatic, as on Hitachi’s trains.

But get it right and this would surely open up the possibility of extra destinations in the North, provided like Bradford, Cleethorpes, Sunderland, Wakefield and York, they are on railway routes North of Doncaster.

The Class 180 trains are 125 mph diesel trains, that are about fifteen years old.

All other operators on the East Coast Main Line in a few years will be running variants of Class 800 trains, which will be capable of running at 140 mph on large parts of the route, when in-cab signalling is up and running.

As these trains can split and join with ease, surely Grand Central will be looking for some suitable new trains.

Currently, the fastest trains take about around a hundred minutes between London and Doncaster.

A rough estimate says that savings of around ten minutes could result from all trains being 140 mph capable, which would benefit all services.

But all operators on the line would have joining and splitting, so expect some new destinations from Kings Cross.

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March 23, 2018 Posted by | Transport | , , , , , | Leave a comment

The Automatic Splitting And Joining Of Trains

Hitachi And Automatic Splitting And Joining Of Trains

The Hitachi Class 395 train was the first train in the UK  to be able to automatically split and join in service.

In The Impressive Coupling And Uncoupling Of Class 395 Trains, I linked to this video.

Impressive isn’t it?

In Do Class 800/801/802 Trains Use Batteries For Regenerative Braking?, I quoted this comment from a public on-line Hitachi document.

Because the coupling or uncoupling of cars in a trainset occurs during commercial service at an intermediate station, the automatic coupling device is able to perform this operation in less than 2 minutes.

This is definitely in line with Class 395 train performance.

This document from the Hitachi web site talks about the design of Hitachi’s Class 385 trains for Scotland. This is said.

The lead and rear railcars have an automatic coupler at the front and walk-through gangway hoods. When train sets are coupled together, the hoods fit together as part of the automatic coupling operation to provide access between train sets, meaning that passengers and staff are able to move freely from one train set to another.

Obviously, Hitachi have got automatic splitting and joining of trains spot on!

Current Split/Join Services

There are several places in the UK network, where splitting and joining of trains is used.

  •  Southeastern Highspeed do it at Ashford.
  • Great Northern Kings Lynn do it at Cambridge.
  • Southern do it at Haywards Heath.
  • Virgin Trains do it at Crewe.
  • South West Trains do it at Southampton.

But currently only the Class 395 trains can do it automatically.

The in-service entry of the Class 800 trains will change everything, as it will make a lot more new routes possible.

Virgin Trains East Coast

Currently, Virgin Trains East Coast (VTEC) run two trains per hour (tph) between Kings Cross and Leeds. In the Peak, some services are extended to Bradford Forster Square, Skipton and Harrogate, where the last route is not electrified.

Will some services to Leeds be run by two five-car Class 800/801 trains working together as a ten-car train?

  • Class 800 trains are electro-diesel which could work to Harrogate under diesel power.
  • Class 801 trains are all-electric, which could work all electrified routes from Leeds.

At Leeds the two trains could separate, with each train going to a different destination. Reading Hitachi’s published documents, the split would take under two minutes at Leeds and I don’t think there would be a restriction of a Class 800 and a Class 801 working together between Kings Cross and Leeds using the overhead electrification.

VTEC gets advantages by using this split and join approach.

  • Frequencies and train length to the eventual destinations can be adjusted to what the market will sustain.
  • Extra expensive train paths between the split/join station and London are not needed.
  • Between the split/join station and London, the train can usually run using electrification.
  • Costs are probably saved, if only a half-train is run to some destinations, as track access charges are based on weight.
  • A five-car electro-diesel could probably access more routes than a nine-car train.

This is the fleet that VTEC have ordered.

  • Class 800 – 10 x five-car
  • Class 800 – 13 x nine-car
  • Class 801 – 12 x five-car
  • Class 801 – 30 x nine-car

These Class 800 and Class 801 trains give VTEC all sorts of of possibilities.

The backbone of the service which is a half-hourly service to Edinburgh probably needs about 35 nine-car trains, some of which would be electro-diesels to work North of the electrification to Aberdeen and Inverness.

But that still leaves quite a few five-car trains available for other services.

Great Western Railway

Great Western Railway (GWR) will probably use their Class 800/801802 trains in a similar manner.

This is the fleet that GWR have ordered.

  • Class 800 – 36 x five-car
  • Class 800 – 21 x nine-car
  • Class 802 – 22 x five-car
  • Class 802 – 14 x nine-car

Note that the electro-diesel Class 802 train is similar to the Class 800, but with the engines tuned for more power and larger fuel tanks, so it can handle Devon and Cornwall routes easier.

I think that given the number of five-car trains on order and the lack of promised electrification, I think that GWR will be using splitting and joining  in some surprising places, to make sure that as many routes as possible get the new trains.

The Stadler Flirt

This article on Railway Technology describes the Stadler Flirts built for Swiss Federal Railways. This is said.

The train consists of articulated train sets, which contains light rail cars attached semi-permanently sharing a common bogie. The trains are available in two to six car combinations with two to six motorised axles. The automatic couplers, installed at both the ends of the trains, permit connection and disconnection of up to four train cars easily and quickly.

Does this mean that two trains can split and join like the Hitachi trains?

The Bombardier Aventra

The Aventra is a train that has been designed to have everything that customers might need. This is the description of the train in Wikipedia.

The train has been designed to be lighter and more efficient, with increased reliability. It will have lightweight all-welded bodies, wide gangways and doors to shorten boarding times in stations, and ERTMS. The design incorporates FlexxEco bogies which have been used in service on Voyagers and newer Turbostars. The gangway is designed to allow maximum use of the interior space and ease of movement throughout the train.

As Hitachi have published a lot of their thinking on Class 800/801 trains on the Internet, I would find it astounding that Bombardier and the other train building companies haven’t read it.

There have been four orders for the Aventras so far, which total over two thousand carriages.

Two of these orders are for mixed fleets of five-car and ten-car trains.

Are these trains and half-trains just like with the Hitachi trains?

If the answer is in the affirmative, I think it is very likely that Aventras will have the capability of splitting and joining automatically.

Greater Anglia

Greater Anglia has a complex route structure that fans out from a very busy electrified core into Liverpool Street on both their main lines.

They have ordered 89 x five-car and 22 x ten-car of Class 720 trains.

Many of their outer-suburban routes currently run twelve-car services and as their two main lines are only double-track, I can see a lot of five car trains working in pairs.

In Harlow Council Leader Jon Clempner Hopes Crossrail 2 Will Extend To Town, I suggested that Greater Anglia might use splitting and joining on the West Anglia Main Line to get four tph on the Hertford East Branch.

It may not be practical in that case, but Greater Anglia have several electrified branches.

South Western Railway

South Western Railway have a similar route structure to Greater Anglia, with a very busy electrified core into Waterloo.

They have ordered 30 x five-car and 60 x ten-car of Aventra trains.

In Waterloo Upgrade August 2017 – Virginia Water Station, I talked about used splitting and joining to provide a better service on the Waterloo to Reading Line and the Chertsey Branch.

However, I think that most services will be run by ten-car trains given the make-up of the fleet.

The five-cars could generally run on routes where the capacity only needs five-car trains or the infrastructure wouldn’t allow anything longer.

They could then split and join to maximise the capacity and use only one path from the split/join station to Waterloo.

 

 

 

 

 

 

August 6, 2017 Posted by | Transport | , , , , , , , | 3 Comments

Waterloo Upgrade August 2017 – Virginia Water Station

I took these pictures at Virginia Water station.

The station was updated a few years ago, but the platforms have been lengthened to twelve-car platforms, as part of the August 2017 upgrade.

If the station has a problem, it is that the Waterloo to Reading Line and the Chertsey Branch, split on the Waterloo side of the station, so it would be impossible to have a ten-car train formed of two five-car units arrive in the station, with one departing on each line.

I suppose they could always split at Egham station, which has recently been updated with twelve-car platforms.

These two half-hourly services.

  • Waterloo to Guildford via Aldershot
  • Waterloo to Chertsey

Could be run by five-car trains, which ran as a ten-car train to Egham.

  • Both services would move from two to four trains per hour.
  • No extra train paths would be needed.

If the Class 707 trains can’t run a service like this, they’re history.

This Google Map shows Virginia Water station

Note that the scar of a chord that used to connect the Reading and Cherstey Lines can be seen South of the station.

Would it have any possibilities?

 

 

August 5, 2017 Posted by | Transport | , , , | 1 Comment

Harlow Council Leader Jon Clempner Hopes Crossrail 2 Will Extend To Town

The title of this post is the same as this article in Essex Live.

You might feel that Jon Clempner has a point, if you look at this diagram of the West Anglia Main Line between the M25 and Stansted Airport.

Note that Harlow Town station is only five and a half miles North of Crossrail 2’s proposed terminal of Broxbourne.

Greater Anglia’s New Trains

Greater Anglia are replacing ten twelve-car Class 379 trains on Cambridge and Stansted Airport services with ten twelve-car Class 745 trains.

You might ask why bother with this replacement, if the number of trains and carriages are the same, which initially will result in the same number of services.

I answer that question in  Why Are Greater Anglia Replacing Class 379 Trains With New Stadler Class 745 Trains?

But this doesn’t mean the current frequency is cast in stone, as the other fleet of Class 720 trains have a similar performance to the Class 745 and 755 trains, so they can mix it on the West Anglia Main Line.

I feel that all the trains would have these features.

  • Trains would be fitted with the latest signalling, so they could work with headways between trains as low as two or three minutes.
  • Trains will all be 100 mph trains or faster.
  • Trains would be designed to stop and restart at a station very quickly.
  • Trains could couple and decouple to make a longer train in a couple of minutes.

They will offer lots of opportunities to improve services.

The Current Service North Of Broxbourne

These current services stop at Broxbourne station in both directions..

  • One train per hour (tph) between Cambridge and London Liverpool Street – fast – stopping at Bishops Stortford and Hsrlow Town
  • One tph between Cambridge and London Liverpool Street – semi-fast – stopping at Stansted Mountfichet, Bishops Stortford, Sawbridgeworth, Harlow Mill, Harlow Town and Roydon
  • One tph between Stratford and Bishops Stortford – local stopping at Roydon, Harlow Town, Harlow Mill and Sawbridgeworth
  • One tph between Stratford and Bishops Stortford – local stopping at Harlow Town and Sawbridgeworth
  • Two tph between Hertford East and London Liverpool Street

In addition, there are four tph between Stansted Airport and London Liverpool Street (Stansted Express).

This means that the frequency of trains through various stations are as follows.

  • Broxbourne – 10 tph – Six stop (not Stansted Express)
  • Harlow Town – 8 tph – Four stop and some Stansted Express stop
  • Bishops Stortford – 8 tph – Two stop, two terminate and some Stansted Express stop.

So there is a maximum of ten tph or just one train every six minutes at Brombourne.

Given that Crossrail and Thameslink handle twenty-four tph through their central tunnels, eight tph is not very high!

Crossrail 2 At Broxbourne

Crossrail 2 will have its own dedicated tracks between London and Broxbourne and could be running twelve tph.

So if there were to be cross-platform interchange between the North of Broxbourne services and Crossrail 2, passengers could change between services as they needed.

The trains going North of Broxborne would be as follows.

  • 2 tph to Cambridge or Cambridge North
  • 2 tph to Bishops Stortford
  • 2 tph to Hertford East.
  • 4 tph to Stansted Airport

There would be a lot of scope to create an efficient service between all stations on the West Anglia Main Line and the two london termini of Liverpool Street and Stratford.

The Hertford East Branch

The Hertford East Branch isn’t a problem now, but the two tph between Liverpool Street and Hertford East station take up valuable paths on the lines to London.

The branch also has the following characteristics.

  • The platforms may not be long enough for ten-car Class 720 trains.
  • It is mainly double-track with a short length of single-track through Ware station.
  • It is fully electrified.
  • It is just seven miles long.
  • It might be possible to add a chord so that trains can access the branch from the Harlow direction from the West Anglian Main Line.

I suspect Network Rail and Greater Anglia have a plan with at least the following objectives.

  1. Keep a direct service between London Liverpool Street and Hertford East.
  2. Increase the frequency of trains to and from Hertford East to four tph.
  3. Avoid as much infrastructure work as possible.

Because of the new trains ability to couple and uncouple, I wonder if we could see two five-car Class 720 trains arrive at Broxbourne as a ten-car unit, with one train going to Hertford East and the other going to Bishops Stortford.

This would have the following advantages.

  • Hertford East gets four tph, including two new tph from Stratford.
  • Bishops Stortford get four tph, including two new tph from Liverpool Street,
  • Two tph could serve each of the London termini of Liverpool Street and Stratford.
  • The number of trains along the West Anglia Main Line between Tottenham Hale and Broxbourne is unchanged.
  • Hsrlow Town and Sawbridgworth  get another two tph to Liverpool Street.

I’m probably wrong, but there will be a better idea somewhere.

Conclusion

Crossrail 2 doesn’t need to go to Harlow Town, but Greater Anglia’s new trains should give a better service.

 

August 3, 2017 Posted by | Transport | , , , , , | 1 Comment