The Anonymous Widower

High Speed Two To Build Stabling Facility In Scotland

High Speed Two has announced the intension to build a stabling facility for trains at Annandale in Dumfries and Galloway.

This document on the Government web site is entitled HS2 Phase 2b Western Leg Design Refinement Consultation.

Details of the Annandale Depot, start on Page 43.

This is the introductory paragraph.

Phase 2b will provide an increased number of services to Scotland and North West England compared to Phase 2a or Phase One of HS2, with two 400m trains running from Euston each hour and splitting at Carlisle into two 200m trains to serve Glasgow and Edinburgh. HS2 trains will also serve Scotland from Birmingham. New HS2 trains serving Scotland and the north west of England will need overnight stabling and light maintenance in this area, near to where trains finish and start service. It would not be operationally efficient for these trains to run empty to the next closest HS2 depot north of Crewe, approximately 150 miles away.

Note the services are as laid out in the June 2020 Edition of Modern Railways, which was obviously the thinking at the time on High Speed Two.

If you ignore the splitting and joining and assume that they are two separate trains, the Anglo-Scottish services on High Speed Two are as follows.

  • One train per hour (tph) – London Euston and Edinburgh Waverley via Old Oak Common, Preston, Carlisle and Edinburgh Haymarket.
  • One tph – London Euston and Edinburgh Waverley via Old Oak Common, Birmingham Interchange, Preston, Carlisle and Edinburgh Haymarket.
  • One tph – London Euston and Glasgow Central via Old Oak Common, Preston and Carlisle.
  • One tph – London Euston and Glasgow Central via Old Oak Common, Birmingham Interchange, Preston and Carlisle.
  • One train per two hours (tp2h) – Birmingham Curzon Street and Edinburgh Waverley via Wigan North Western, Preston, Lancaster, Oxenholme, Penrith, Carlisle. Lockerbie and Edinburgh Haymarket
  • One tp2h – Birmingham Curzon Street and Glasgow Central via Wigan North Western, Preston, Lancaster, Oxenholme, Penrith, Carlisle. Lockerbie and Motherwell

Note.

  1. Oxenholme and Penrith might not be served by both Birmingham trains.
  2. All services would be run by High Speed Two’s Classic-Compatible trains.
  3. The two Birmingham services effectively provide a one tph service between Birmingham and Scotland.
  4. All services will be single  200 metre long trains to the North of Carlisle, as pairs will split and join at Carlisle station.
  5. There would appear to be a fairly consistent five tph between Carlisle and Carstairs, where the Glasgow and Edinburgh routes divide.
  6. Edinburgh Waverley and Glasgow Central will both have three tph to and from Carlisle and Preston.

These were factors in the choice of location of the depot, stated in the report.

  • Be close to the existing railway.
  • Be a relatively large, flat site.
  • Preferably a brownfield rather than greenfield site.
  • Located as close as feasible to where HS2 services will terminate or begin to minimise empty train movements.
  • Be accessible to the workforce and local transport network.
  • Be suitable for 24-hour working.
  • Have enough space to accommodate equipment for light maintenance activities.
  • Have enough space to accommodate the expected number of trains.

The site is also close to the M74.

A few of my thoughts.

The Location Of The Proposed Depot

This Google Map shows the area mentioned in the report.

Note.

  1. The red arrow indicates Cranberry Farm, which will be just to the North of the site.
  2. The West Coast Main Line passing just South of Cranberry Farm, going across the map.
  3. The B 7076 and M74 will be to the South of the site.

It looks to meet many of the factors, I stated earlier. But it does appear to be a greenfield, rather than a brownfield site.

Distances And Times From The Depot

These are distances to places, where services will or might start.

  • Carlisle – 9 miles – 6 minutes
  • Edinburgh – 93 miles – 68 minutes
  • Glasgow – 94 miles – 59 minutes

I have used distances from Gretna Green Junction, which is just to the South of the proposed depot.

Will The Depot Be Only For Classic-Compatible Trains?

Consider.

  • All services North of Wigan North Western will be run by High Speed Two’s Classic-Compatible trains.
  • A simpler depot would surely be possible if it only handled High Speed Two’s Classic-Compatible trains.
  • With the possible exception of the occasional demonstration or test run High Speed Two;s full-size fleet will never be seen North of the Border.

The only thing this depot might have to do with the full-size fleet is turn-back a test train, which would only need a 400 metre long siding. A siding this length would probably be needed to turn a pair of High Speed Two’s Classic-Compatible trains.

Could The Depot Serve A Possible Irish Extension?

I believe that eventually High Speed Two will be extended across Southern Scotland and a bridge will connect it to Northern Ireland

In A Glimpse Of 2035, I gave a fictionalised version of the first journey from London Euston to Dublin, by high speed train.

I have just calculated the length of a high speed rail link between the proposed Annandale . Depot and a Belfast Parkway station. It is around 120 miles and the route would probably branch off between Lockerbie and Annandale Depot.

I feel that Annandale Depot could serve trains for Belfast, but there would probably need to be another depot in Dublin.

 

Extra HS2 Services To Scotland

Currently, TransPennine Express run services Between Liverpool and Manchester in England and Edinburgh and Glasgow in Scotland.

I can see High Speed Two replacing these services with a similar service to the one they are planning for Birmingham.

The current service is as follows,

  • One tp2h – Manchester Airport and Edinburgh Waverley via Manchester Piccadilly, Preston, Lancaster, Carlisle and Haymarket
  • One tp2h – Manchester Airport and Glasgow Central via Manchester Piccadilly, Preston, Lancaster, Carlisle and Motherwell
  • Four trains per day (tpd) – Liverpool Lime Street and Glasgow Central via Wigan North Western, Preston, Lancaster, Carlisle and Motherwell

Note.

  1. They call at smaller stations like Wigan North Western, Lancaster, Oxenholme, Penrith and Lockerbie as appropriate, to even up the service.
  2. These services probably share one path between Preston and Carstairs.
  3. The Liverpool services are diverted Manchester services.

Could they be replaced by High Speed Two services?

The Manchester services could become.

  • One tp2h – Manchester Piccadilly and Edinburgh Waverley via Manchester Airport, Preston, Lancaster, Carlisle and Haymarket
  • One tp2h – Manchester Piccadilly and Glasgow Central via Manchester Airport, Preston, Lancaster, Carlisle and Motherwell.

Blackpool, Liverpool and other parts of the North West may be better served with high speed commuter services linking them to Preston.

Serving Scotland’s Seven Cities

Scotland has seven cities that are connected by Inter7City trains.

  • Aberdeen – Not Electrified
  • Dundee – Not Electrified
  • Edinburgh – Will be served by High Speed Two
  • Glasgow – Will be served by High Speed Two
  • Inverness – Not Electrified
  • Perth – Not Electrified
  • Stirling – Fully Electrified

Can we forget about serving Aberdeen, Dundee, Inverness and Perth until they are dulling electrified?

But Stirling must be a possibility.

There is a fully electrified route via Motherwell, Whifflet, Greenfaulds and Larbert

I estimate, that coming up from London will take four hours and five minutes, as against the current time of five hours and eighteen minutes.

Increasing Capacity On The West Coast Main Line In Scotland

Over the years, there have been several plans to run more and faster trains between England and Glasgow on the West Coast Main Line.

So would an High Speed Two go to Sirling?

At present the maximum operating speed on the route is 125 mph. Trains like Avanti West Coast’s Class 390 trains and Hitachi’s AT-300 trains, could run at 140 mph, if digital in-cab signalling were rolled out on the route.

It is absolutely essential before High Speed Two trains run to Scotland, that the West Coast Main Line is digitally signalled.

In addition to faster running, trains can be closer together, so more trains can be run in an hour.

There are also other things, that could be done to help.

  • Ensure, that all the many freight trains on the route are electrically-hauled and capable of operating at 100 mph or more.
  • Make sure that local trains sharing the routes into Glasgow and Edinburgh are fast enough to keep out of the way of the expresses.
  • Selectively, add extra tracks, so that fast trains can overtake slow ones.
  • Ideally, a line like the West Coast Main Line, needs to be quadruple track all the way.

There also must be scope for flighting.

Consider.

  • Class 390 trains take about 30 minutes between Edinburgh Waverley and Carstairs South Junction
  • Class 390 trains take about 30 minutes between Glasgow Central and Carstairs South Junction
  • Carstairs South Junction is where the two routes join.

Suppose the two trains were to leave Edinburgh and Glasgow at similar times and run South from Carstairs South Junction, a safe distance apart.

  • The lead train would be travelling at 140 mph perhaps three to five minutes in front of the second train.
  • In-cab digital signalling would enforce the safe distance.

When the trains arrived in Carlisle, they would take a couple of minutes to join up physically for the high speed dash to London.

This Google Map shows Carstairs station and the splitting of the Glasgow and Edinburgh routes.

Note.

  1. The tracks going North-West to Glasgow.
  2. The tracks going North-East to Edinburgh.
  3. The tracks going South-East to Glasgow
  4. All tracks in the picture are electrified.

There might be a need for a passing loop to increase the efficiency of this junction.

It’s not just high speed passenger trains, that can use this technique, but it can be applied to trains with the same performance. So freight trains could form a convoy!

Flighting can decrease the number of train paths needed for a particular number of services and as digital in-cab signalling extends its reach across the UK, we’ll see more applications of the technique.

Effectively, by pathing the two London and Edinburgh/Glasgow trains and adding in one Birmingham and Manchester service, High Speed Two services would only need four paths between Carlisle and Carstairs.

But there would be.

  • Four tph between Preston/Carlisle and Scotland. So capacity would be good.
  • Three tph Between Carlisle and Edinburgh.
  • Three tph Between Carlisle and Glasgow.

As Birmingham Curzon Street, Manchester Piccadilly and Manchester Airport all can handle a pair of High Speed Two’s Classic-Compatible trains, it might be possible in the future to serve both Edinburgh and Glasgow with the Birmingham and Manchester services, splitting the trains at Carlisle. This would mean.

  • Four tph between Preston/Carlisle and Scotland.
  • Four tph Between Preston/Carlisle and Edinburgh.
  • Four tph Between Preston/Carlisle and Glasgow.

That looks strange mathematics, but that’s what you get when a train can serve two places by splitting.

What About The Glasgow And South Western Line?

The Glasgow And South Western Line, runs between Glasgow and Carlisle via Dumfries.

Consider.

  • It is not electrified
  • It can be used as a diversion, when the West Coast Main Line is blocked.
  • It has always puzzled me, why this line wasn’t electrified, when the West Coast Main Line was electrified in the 1970s.
  • High Speed Two’s need for more paths and higher speeds on the West Coast Main Line, may chase some of the freight on that route on to the Glasgow and South Western, as an alternative.

Perhaps, a small part of the High Speed Two budget could be used to electrify the route.

It certainly could be used to take some freight traffic from the West Coast Main Line and to ease diversions, if High Speed Two needed to close the West Coast Main Line for improvements to track, electrification or signalling.

It is also a line, where alternative methods of powering the trains could be used.

  • It has electrification at both ends and with some electrification in the middle, battery electric passenger trains might be able to use the route.
  • The City of Glasgow is majoring on hydrogen and the route, which is 115 miles long, could be ideal for a hydrogen train.

On the other hand full electrification could enable the electric services to be run at times, when the West Coast Main Line was blocked.

It is certainly a route, that could benefit from improvement.

Extension Of The Borders Railway To Carlisle

It is looking increasingly likely that the Borders Railway will be extended to Carlisle.

This report from the High Speed Rail Group is entitled Cross-Border High-Speed Rail And The Borders Railway Project.

The first paragraph is firm about why the Edinburgh and Glasgow services should split and join at Carlisle.

It has taken a while for HS2 service plans to focus on Carlisle as the right place to divide and join Glasgow/Edinburgh high-speed train portions. Earlier plans used Carstairs – and left Carlisle with no HS2 London service.

I also think it will be considerably more affordable  and less disruptive to extend Carlisle’s already long platforms, than to build a massive new station at Carstairs capable of handling 400 metre long trains.

This paragraph puts its case for extending the Borders Railway to Carlisle.

To get best use out of the enhanced services that will then be possible, and to fully utilise the additional line capacity along the West Coast Main Line, onward rail connectivity is crucial. That’s why we flagged the compatibility with the Borders Railways re-opening from Tweedbank via Hawick to Carlisle in our report. With Carlisle-London journey times reduced to a little over 2 hours, and the Borders Railway fully re-instated, journey times from the Borders towns could be dramatically shortened – to London as well as to other major cities in England. Inward travel for tourists to the Borders region would be dramatically enhanced too.

They also add that a Borders Railway could be an useful diversion route, during the increasing number of problems on UK rail networks caused by the weather.

I believe that the Borders Railway should be extended to Carlisle and it should also be electrified.

  • It would be a useful diversion route.
  • It could handle some freight trains.
  • It might be useful to move empty stock between Edinburgh and Annandale Depot, as the Borders Railway joins the West Coast Main Line not far from the depot.

We mustn’t underestimate how many passengers to and from the Borders will use the Borders Railway to catch High Speed Two at Carlisle.

Conclusion

Moving the depot to Annandale, may look to some like a way of giving the Scots a higher profile in High Speed Two.

But I do think it gives options to make a High Speed Network easier to run North of the border.

  • High Speed Two have total control of their depot.
  • It is well placed for Carlisle, Edinburgh and Glasgow.

It is also extremely well placed for the rail network of South Scotland.

October 11, 2020 Posted by | Transport | , , , , , , , , | Leave a comment

Could Some of Hitachi’s Existing Trains In The UK Be Converted To Battery-Electric Trains?

The last five fleets of AT-300 trains ordered for the UK have been.

Each fleet seems to be tailored to the needs of the individual operator, which is surely as it should be.

I can make some observations.

Fast Electric Trains

Both electric fleets on the list, will run on routes, where speed will be important.

  • The Avanti West Coast fleet on the West Coast Main Line, will have to be able to keep up keep with the Class 390 trains, that have the advantage of tilt for more speed.
  • The East Coast Trains fleet on the East Coast Main Line, will have to work hard to maintain a demanding schedule, as I outlined in Thoughts On East Coast Trains.

Any reduction in weight will improve the acceleration.

  • The seven tonne MTU 12V 1600 R80L diesel engines can be removed to reduce the weight.
  • As a five-car Class 800 train with three diesel engine weighs 243 tonnes, this could save nearly 9 % of the train’s weight.
  • East Coast Trains feel they need an appropriately-sized battery for emergency hotel power. Could this be because the catenary is not as good on the East Coast Main Line as on the West?
  • Perhaps, Avanti West Coast feel a battery is not needed, but they could obviously fit one later. Especially, if there was already a ready-wired position underneath the train.

The extra acceleration given by 100% electric operation, must make all the difference in obtaining the required performance for the two routes.

Why Four Diesel Engines In A Class 810 Train?

The Class 810 trains are an update of the current Class 800/Class 802 trains. Wikipedia described the differences like this.

The Class 810 is an evolution of the Class 802s with a revised nose profile and facelifted end headlight clusters, giving the units a slightly different appearance. Additionally, there will be four diesel engines per five-carriage train (versus three on the 800s and 802s), and the carriages will be 2 metres (6.6 ft) shorter due to platform length constraints at London St Pancras.

Additionally, in this article in the October 2019 Edition of Modern Railways, which is entitled EMR Kicks Off New Era, this is said.

The EMR bi-modes will be able to run at 125 mph in diesel mode, matching Meridian performance in a step-up from the capabilities of the existing Class 80x units in service with other franchises.

The four diesel engines would appear to be for more power, so that these trains will be able to run at 125 mph on diesel.

In How Much Power Is Needed To Run A Train At 125 mph?, I calculated that a Class 801 train, which is all-electric, consumes 3.42 kWh per vehicle mile.

  • At 125 mph a train will in an hour travel 125 miles.
  • In that hour the train will need 125 x 5 x 3.42 = 2137.5 kWh
  • This means that the total power of the four diesel engines must be 2137.5,
  • Divide 2137.5 by four and each diesel must be rated at 534.4 kW to provide the power needed.

The MTU 12V 1600 R80L diesel engine is described in this datasheet on the MTU web site.

Note on the datasheet, there is a smaller variant of the same engine called a 12V 1600 R70, which has a power output of 565 kW, as compared to the 700 kW of the 12V 1600 R80L.

The mass of the engines are probably at the limits of the range given on the datasheet.

  • Dry – 4500-6500 Kg
  • Wet – 4700-6750 Kg

It would appear that the less-powerful 12V 100 R70 is about two tonnes lighter.

So where will four engines be placed in a Class 810 train?

  • The five-car Class 800 and Class 802 trains have diesel-engines in cars 2, 3 and 4.
  • The nine-car Class 800 and Class 802 trains have diesel-engines in cars 2,3, 5, 7 and 8.
  • It appears that diesel-engines aren’t placed under the driver cars.
  • Five-car AT-300 trains generally have a formation of DPTS+MS+MS+MC+DPTF.
  • The car length in the Class 810 trains are two metres shorter than those in other trains.

Could it be that the intermediate cars on Class 810 trains will be an MC car, which has both First and Standard Class seating and two identical MS cars both with two smaller diesel engines?

  • The two smaller diesel engines will be about 2.6 tonnes heavier, than a single larger engine.
  • Only one fuel tank and other gubbins will be needed.
  • The shorter car will be lighter in weight.
  • MTU may have designed a special diesel engine to power the train.

I would suspect that a twin-engined MS car is possible.

Could The Battery And The Diesel Engine Be Plug-Compatible?

I found this document on the Hitachi Rail web site, which is entitled Development of Class 800/801 High-Speed Rolling Stock For UK Intercity Express Programme.

The document may date from 2014, but it gives a deep insight into the design of Hitachi’s trains.

I will take a detailed look at the traction system as described in the document.

This schematic of the traction system is shown.

Note BC is described as battery charger.

This is said in the text, where GU is an abbreviation for generator unit.

The system can select the appropriate power source from either the main transformer or the GUs. Also, the size and weight of the system were minimized by designing the power supply converter to be able to work with both power sources. To ensure that the Class 800 and 801 are able to adapt to future changes in operating practices, they both have the same traction system and the rolling stock can be operated as either class by simply adding or removing GUs. On the Class 800, which is intended to run on both electrified and non-electrified track, each traction system has its own GU. On the other hand, the Class 801 is designed only for electrified lines and has one or two GUs depending on the length of the trainset (one GU for trainsets of five to nine cars, two GUs for trainsets of 10 to 12 cars). These GUs supply emergency traction power and auxiliary power in the event of a power outage on the catenary, and as an auxiliary power supply on non-electrified lines where the Class 801 is in service and pulled by a locomotive. This allows the Class 801 to operate on lines it would otherwise not be able to use and provides a backup in the event of a catenary power outage or other problem on the ground systems as well as non-electrified routes in loco-hauled mode.

This is all very comprehensive.

Note that the extract says, that both the Class 800 trains and Class 801 trains have the same traction control system. A section called Operation in the Wikipedia entry for the Class 802 train, outlines the differences between a Class 802 train and a Class 800 train.

The Class 802s are broadly identical to the Class 800 bi-mode trains used in the Intercity Express Programme, and are used in a similar way; they run as electric trains where possible, and are equipped with the same diesel generator engines as the Class 800. However, they utilise higher engine operating power – 700 kW (940 hp) per engine as opposed to 560 kW (750 hp) – and are fitted with larger fuel tanks to cope with the gradients and extended running in diesel mode expected on the long unelectrified stretches they will operate on.

I would assume that the differences are small enough, so that a Class 802 train, can use the same traction control system, as the other two train classes.

The Hitachi document also describes the Train Management and Control System (TCMS), the function of which is described as.

Assists the work of the train crew; a data communication function that aids maintenance work; and a traction drive system that is powered by the overhead lines (catenaries) and GUs.

Several trains have been described as computers on wheels. That could certainly be said about these trains.

There would appear to be a powerful Automatic Train Identification Function.

To simplify the rearrangement and management of train configurations, functions are provided for identifying the train (Class 800/801), for automatically determining the cars in the trainset and its total length, and for coupling and uncoupling up to 12 cars in normal and 24 cars in rescue or emergency mode.

Now that would be a site – One nine-car train rescuing another!

I would assume that this Automatic Train Identification Function has already been updated to add the Class 802 trains and it would appear to me, as a very experienced computer programmer, that in future it could be further updated to cater for the following.

  • New classes of trains like the future Class 803 and Class 810 trains.
  • The fitting of batteries instead of diesel engines.

Could the Function even be future-proofed for hydrogen power?

There are two main ways for trains to operate when the diesel engine in a car has been replaced by a battery.

  1. A plug-compatible battery module is designed, that in terms of function looks exactly like a diesel engine to the TCMS and through that the train crew.
  2. The car with a battery becomes a new type of car and the TCMS is updated to control it, in an appropriate manner.

Both methods are equally valid.

I would favour the first method, as I have come across numerous instances in computer programming, engineering and automation, where the method has been used successfully.

The method used would be Hitachi’s choice.

What Size Of Battery Could Be Fitted In Place Of The Diesel Engine?

Consider.

  • 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.
  • My engineering knowledge would suggest, that it would be possible to replace the diesel engine with an inert lump of the same mass and not affect the dynamics of the train.

So could it be that a plug-compatible battery module can be fitted, so long as it doesn’t exceed the mass of the diesel engine it replaces?

For an existing Class 800 or Class 802 train, that limit could be seven tonnes.

But for East Coast Train’s Class 803 train, that size would probably be decided by the required train performance.

How much power would a one tonne battery hold?

This page on the Clean Energy institute at the University of Washington is entitled Lithium-Ion Battery.

This is a sentence from the page.

Compared to the other high-quality rechargeable battery technologies (nickel-cadmium or nickel-metal-hydride), Li-ion batteries have a number of advantages. They have one of the highest energy densities of any battery technology today (100-265 Wh/kg or 250-670 Wh/L).

Using these figures, a one-tonne battery would be between 100 and 265 kWh in capacity, depending on the energy density.

This table can be calculated of battery weight, low capacity and high capacity.

  • 1 tonne – 100 kWh – 265 kWh
  • 2 tonne – 200 kWh – 530 kWh
  • 3 tonne – 300 kWh – 895 kWh
  • 4 tonne – 400 kWh – 1060 kWh
  • 5 tonne – 500 kWh – 1325 kWh
  • 6 tonne – 600 kWh – 1590 kWh
  • 7 tonne – 700 kWh – 1855 kWh

As energy densities are only going to improve, the high capacity figures are only going to get larger.

If you look at the design of the Class 810 trains, which could have three positions for diesel engines or batteries, the designers of the train and East Coast Trains can choose the battery size as appropriate for the following.

  • Maximum performance.
  • Power needs when halted in stations.
  • Power needs for emergency power, when the wires come tumbling down.

I suspect, they will fit only one battery, that is as small as possible to minimise mass and increase acceleration, but large enough to provide sufficient power, when needed.

Conversion Of A Five-Car Class 800/Class 802 Train To Battery-Electric Operation

If Hitachi get their design right, this could be as simple as the following.

  • Any of the three MTU 12V 1600 R80L diesel engines is removed, from the train.
  • Will the other diesel related gubbins, like the fuel tank be removed? They might be left in place, in case the reverse conversion should be needed.
  • The new battery-module is put in the diesel engine’s slot.
  • The train’s computer system are updated.
  • The train is tested.

It should be no more difficult than attaching a new device to your personal computer. Except that it’s a lot heavier.

As there are three diesel engines, one, two or three could be replaced with batteries.

Trains would probably be able to have a mixture of diesel engines and battery modules.

A Class 802 train with one diesel engine and two five-tonne batteries would have the following power sources.

  • 25 KVAC overhead electrification.
  • A 700 kW diesel engine.
  • Two five-tonne batteries of between 500 kWh and 1325 kWh.

With intelligent software controlling the various power sources, this train could have a useful range, away from the electrification.

Conversion Of A Five-Car Class 810 Train To Battery-Electric Operation

The process would be similar to that of a Class 800/Class 802 Train, except there would be more possibilities with four engines.

It would also need to have sufficient range to bridge the gaps in the electrification.

Perhaps each train would have the following power sources.

  • 25 KVAC overhead electrification.
  • Two 565 kW diesel engines.
  • Two four-tonne batteries of between 400 kWh and 1060 kWh.
  • Batteries might also be placed under the third intermediate car.

I estimate that with 400 kWh batteries, a train like this would have a battery range of sixty-five miles.

Conclusion

The permutations and combinations would allow trains to be tailored to the best compromise for a train operating company.

June 8, 2020 Posted by | Transport | , , , , , , , | 1 Comment

Electrification Between Exeter And Plymouth

Eventually, there will be electric passenger trains between Exeter and Plymouth! Great Western Railway’s objective must be for passengers to board their Hitachi AT-300 train at Paddington and be powered all the way to Penzance by electricity, without using a drop of diesel. The added ingredient will be battery power.

In Sparking A Revolution, I gave Hitachi’s specification for a proposed battery-electric train.

  • Range – 55-65 miles
  • Performance – 90-100 mph
  • Recharge – 10 minutes when static
  • Routes – Suburban near electrified lines
  • Battery Life – 8-10 years

As the distance between Exeter and Plymouth is 52 miles, the Hitachi specification could have been designed around this route, which as these pictures show is in places, very close to the sea, where the line runs along the South Devon Railway Sea Wall.

Global warming will probably mean, we’ll see a repeat of the major sea wall breach  that happened at Dawlish in 2014.

I would suspect that the Network Rail’s solution to the problems of efficient low or zero-carbon traction between Exeter and Plymouth includes the following.

  • A very robust railway.
  • Extreme protection from almost everything the sea and the weather can produce.
  • Could we see some concrete tunnels, like the Swiss and others use in mountainous areas to protect from snow? Rail Magazine says yes! At Horse Cove.
  • No electrification as water and electricity are not a good mix, except in an electrolyser to produce hydrogen, oxygen and/or chlorine.
  • Battery or hydrogen-powered passenger trains or freight locomotives.
  • Digital in-cab signalling. Traditional signalling is even more expensive equipment to be swept away.

From media reports, this looks like the way Network Rail are thinking.

Charging The Trains

Battery-electric trains will need to be charged. There are three convenient stations; Exeter St. Davids, Newton Abbott and Plymouth.

As far as passenger services are concerned, it could be a very efficient zero-carbon railway.

Electrification At Exeter St. Davids

Exeter St. Davids is an important hub for services between Devon and Cornwall and the rest of Great Britain.

  • GWR services run to London Paddington via Newbury.
  • GWR services run to London Paddington via Bristol
  • GWR services run to Plymouth and Penzance via Newton Abbott.
  • GWR local services run to Barnstaple, Exmouth and Paignton.
  • CrossCountry services run to the Midlands, North and Scotland via Bristol.
  • South Western Railway services run to London Waterloo via Basingstoke.

In future, there could be services running to Plymouth on the reopened route via Okehampton and Tavistock.

All these services could be run by battery-electric trains for sixty miles from Exeter, if they could be fully-charged at the station.

Note.

  1. Trains to London Paddington and Bristol could easily reach Taunton, which is thirty miles away.
  2. Trains to London Waterloo could reach Yeovil Junction, which is fifty miles away.
  3. Trains to the West could reach Plymouth, which is fifty-two miles away.
  4. Barnstaple is forty miles away, so would probably need some help to get back.
  5. Exmouth is eleven miles away, so a return journey is probably possible.
  6. Paignton is twenty-eight miles away, so a return journey is probably possible, with a top-up at Newton Abbot if required.

Exeter is going to be very busy charging trains.

It should be noted, that trains to and from London Paddington and Bristol, all share the same route as far as Cogload Junction, where the London Paddington and Bristol routes divide.

  • Cogload Junction is thirty-six miles from Exeter.
  • Cogload Junction and Newbury, where the electrification to London Paddington starts are eighty-five miles apart.
  • Cogload Junction and Bristol Temple Meads, where the electrification to London Paddington starts are forty miles apart.

I wonder if it would be sensible to electrify between Exeter St. David station and Cogload Junction.

  • From my virtual helicopter, the line doesn’t look to be in the most difficult category to electrify.
  • There is only one tunnel and a few old bridges and a couple of level crossings.
  • Some of the route is alongside the M5.
  • Trains would arrive in Exeter with full batteries and could do a quick stop before continuing their journeys.
  • Trains would arrive at Cogload Junction and could reach Bristol Temple Meads without stopping for a recharge.
  • Bristol services that are extended to Taunton and Exeter could be run by battery-electric trains.

I also feel, that with upwards of twenty-five miles of extra electrification between Cogload Junction and Newbury, that battery-electric trains could run between London Paddington and Exeter via the Reading-Taunton Line.

Electrification At Plymouth

As with Exeter St. Davis, Plymouth is an important hub for services between Devon and Cornwall and the rest of Great Britain.

  • Most services run to Penzance in the West and Exeter in the East.
  • There is a local service to Gunnislake, which is fifteen miles away.

Lots of charging capacity, will enable battery-electric trains to reach their destinations, except for Penzance

Trains Between Plymouth And Penzance

Hitachi must have despaired, when it was pointed out that the distance between Penzance and Plymouth is eighty miles! This is fifteen miles longer than the range of their proposed battery-electric train.

The simplest solution would be to build a battery-electric train with an eighty mile range, that could travel between Plymouth and Penzance on a single charge. With charging at Penzance it could return to Plymouth.

The longer range, would also mean that, with perhaps ten extra miles of electrification, that battery-electric trains could bridge the electrification gap between Cogload Junction and Newbury.

Other solutions range from selective electrification, all the way up to full electrification of the Cornish Main Line.

It should be noted that there are the following branches on the Cornish Main Line.

If these branches are going to be served by battery-electric trains, arrangements will have to be made for their charging. This could either be on the main line, at the remote terminal or at both.

Would it be easier to run the branches using battery-electric trains, if the Cornish Main Line was fully electrified?

The Cornish Main Line also carries a number of heavy freight trains, most of which seem to be going to or from Burngullow, so I suspect they are in connection with the movement of china clay.

Currently, these heavy freight trains appear to be hauled by diesel locomotives, but if the Cornish Main Line were to be fully electrified, could they be run by electric locomotives?

Electrification Of A Reopened Northern Route

In the May 2020 Edition of Modern Railways, there is an article, which is entitled Beeching Reversal Fund Bids.

This is the introductory paragraph.

Bids have been submitted to Government for a share of the £500 million ‘Restoring your railway’ fund launched by the Department for Transport in January. The fund is to be used to support proposals to reinstate axed local services, to accelerate schemes already being considered for restoration and also to promote new and restored stations.

One of the bids is for the Tavistock-Okrhampton Reopening scheme (TORs), which would reopen the former Exeter to Plymouth railway of the LSWR, as a new route between Exeter and Taunton in the East and Plymouth in the West.

  • The original railway was double-track.
  • Most of the infrastructure is intact.
  • The route would totally avoid Dawlish.

This is also said in the Modern Railways article.

It proposes journey times could be as little as six minutes longer than via the existing route between Exeter and Plymouth and that there could be opportunities for freight trains to avoid the steep gradients over the Devon banks between Newton Abbott and Plymouth. Provision of electrification for TORs as part of a wider programme for main lines in the region is also advocated.

Could an electrified route via Tavistock and Okehampton be connected to an electrified Cornish Main Line, to create an electrified route across Devon and Cornwall?

Connecting At The Royal Albert Bridge

This Google Map shows the Royal Albert Bridge and the Tamar Bridge over the River Tamar.

Note.

  1. The Royal Albert Bridge to the South of the modern Tamar Bridge.
  2. The Great Western Main Line running East to Plymouth and West to Penzance.
  3. The Tamar Valley Line running up the Eastern bank of the River Tamar and under the Eastern approaches to both bridges.
  4. Going North on the Tamar Valley Line leads to the TORs and going South leads to Plymouth station.

I can see a difficult design problem at the Eastern end of the Royal Albert Bridge, as a very complicated junction will be needed to allow all trains go the way they need.

Trains wanting to call at Plymouth station and use TORs will need to reverse in the station.

Connecting At The East Of Exeter

This Google Map shows The Tarka Line and the Bristol-Exeter Line join at Cowley Bridge Junction.

Note.

  1. The Tarka Line to Barnstaple and TORs leaves the map in the North West corner.
  2. The Bristol-Exeter Line to Taunton, Bristol and London Paddington leaves the map in the North East corner.
  3. Cowley Bridge Junction is in the South West corner of the map.
  4. Cntinuing South West leads to Exeter St. David’s station.

It looks to me, that Cowley Bridge Junction will need to be made into a full triangular junction, so that trains can go directly between the Bristol-Exeter Line and the Tarka Line.

Trains wanting to call at Exeter St. David’s station and use TORs will need to reverse in the station.

The Reversal Problem

If you wanted to run a passenger service between Taunton and Penzance using TORs with stops at Exeter, Okehampton, Tavistock, Plymouth and Truro, the train would need to reverse twice at Exeter and Plymouth.

These days with modern fast bi-mode multiple units, it’s not a problem, but in the days of Beeching, when the Tavistock and Okehampton route was originally closed in 1968, there probably wasn’t a suitable train other than a slow two-car diesel multiple unit.

I think, that fast expresses to and from Penzance will still take the current route.

  • Battery-electric trains can handle the route at 100 mph.
  • No reversals will be needed.
  • There is a call at Newton Abbott for connections to Torquay and Paignton.
  • Passengers wanting Okehampton, Tavistock and other stations on the TORs route can change at Exeter or Plymouth.

The Modern Railways article says this about services on the TORs route.

The case suggests that services could operate as an extension of the SWR Waterloo to Exeter service, or potentially as an extension of CrossCountry services beyond Exeter. During periods when the coastal route is blocked, additional services could use the TORs route, potentially running non-stop.

Note.

  1. As the extension of the SWR service would run the other way through Exeter St. David’s station, there would be no need to reverse.
  2. But I suspect the CrossCountry service would need the reverse.
  3. I feel for efficiency, that diverted freight services would need the efficient junctions at each end of TORs.

It probably would have helped if the Great Western and the London and South Western Railways had had a better crystal ball.

Fast Electric Freight Services To And From Devon And Cornwall

If the following lines are electrified.

  • Cogload Junction and Exeter
  • TORs
  • Cornish Main Line

I feel that electric freight services will be able to run between Taunton and Penzance.

All it would need to complete the electrified route would be to electrify the following.

  • Cogload Junction and Bristol
  • Cogload Junction and Newbury

What would a high-speed freight route do for the economy of the two South Western counties?

 

 

April 25, 2020 Posted by | Transport | , , , , , , , , , , , , | 2 Comments

A New Stansted Express Train At Liverpool Street Station

I took these pictures yesterday of a new Stansted Express train at Liverpool Street station.

Note that it is numbered 106 on the front. The leading one indicates a Class 745/1 train or one for use on Stansted Express.

The Class 745 train data sheet is now on the Stadler web site, which gives a lot of interesting data.

For instance, it gives the train’s mean acceleration between 0 and 40 mph as 0.9 m/s².

This compares with the following.

The maximum acceleration for a Hitachi AT-300 train given on this page of their web site as 0.75 m/s².

The acceleration of a Class 345 train is given as up to 1 m/s².

Eversholt give the acceleration of a Class 321 Renatus as 0.6 ms².

It looks to me that Class 745 trains have a quick getaway, but not as quick as the Crossrail trains.

But they do appear to be faster off the mark than the Hitachi trains.

 

April 4, 2020 Posted by | Transport | , , | 3 Comments

Will Avanti West Coast’s New Trains Be Able To Achieve London Euston and Liverpool Lime Street In Two Hours?

Note that I have rewritten this post to take account of this information from the January 2020 Edition of Modern Railways, in an article, which is entitled Hitachi Trains For Avanti.

This is said about the ten all-electric AT-300 trains for Birmingham, Blackpool and Liverpool services, which have now been numbered as Class 807 trains.

The electric trains will be fully reliant on the overhead wire, with no diesel auxiliary engines or batteries.

It may go against Hitachi’s original design philosophy, but not carrying excess weight around, must improve train performance, because of better acceleration.

Currently, Avanti West Coast‘s trains between London Euston and Liverpool Lime Street stations are timetabled as follows.

  • The journey takes two hours and thirteen or fourteen minutes.
  • There are three stops at Stafford, Crewe and Runcorn.
  • The stops with the current Class 390 trains seem to take around a minute.
  • There is one train per hour (tph)
  • A second hourly service with a stop at Liverpool South Parkway is planned to be introduced in December 2022.

In 2022, a new fleet of Hitachi AT-300 trains will be introduced on the route. I believe, it would be reasonable to assume, that these Class 807 trains will have similar or better performance, than the current Class 390 trains.

  • Acceleration and braking are likely to be better.
  • Regenerative braking energy may well be handled more efficiently.
  • The trains may well be equipped with in-cab digital signalling and be able to travel in excess of 125 mph in places, where the track allows.

I would expect, that these trains could be running near to or at 125 mph on most of the journey.

London Euston and Liverpool Lime Street are 193.5 miles apart, so if a train could be running at 125 mph all the way, a train would take 93 minutes.

Extra time must be added for the following.

  • Acceleration from a standing start to 125 mph at London Euston, Stafford, Crewe and Runcorn.
  • Deceleration from 125 mph to a stop at Stafford, Crewe, Runcorn and Liverpool Lime Street.
  • Dwell time in the platforms at Stafford, Crewe and Runcorn.

This page on the Eversholt Rail web site, has a data sheet for a Class 802 train, which is a bi-mode AT-300 train with three diesel engines.

The data sheet shows that a five-car train can accelerate to 125 mph and then decelerate to a stop in six minutes in electric mode. As Avanti West Coast’s Class 807 trains will be all-electric seven-car trains with no heavy engine or battery, I doubt they will be slower than a Class 802 train in electric mode. So four accelerations/deceleration cycles  to 125 mph should take no more than twenty-four minutes.

I will assume two minutes for each of the three stops.

I can now give an estimate for the journey.

  • Base journey time – 93 minutes
  • Acceleration from and deceleration to stops – 24 minutes
  • Station dwell time – 6 minutes

This gives a journey time between London Euston and Liverpool Lime Street of two hours and three minutes.

The journey time can probably be improved in the following ways.

  • Take full advantage of the track improvements on the approach to Liverpool Lime Street station and at Norton Bridge Junction.
  • Better train pathing, as has been done on London Liverpool Street and Norwich services to create the fast Norwich-in-Ninety services.
  • Track and signal improvements to pinch a minute here and a minute there.
  • As Runcorn now has an hourly Liverpool Lime Street and Chester service, will the Runcorn stop be dropped to save time?
  • Reduction in station dwell time.
  • Better driver aids.
  • Better staff operating procedures at stops and whilst turning the train.

It should be born in mind, that a two hour journey between London Euston and Liverpool Lime Street would be a start-stop average speed of 97 mph on a 125 mph route. Intriguingly, this means the trains would run at 77 % of the maximum operating speed of the route, which is the same figure for Norwich-in-Ninety services.

Some of these improvements may enable the Class 390 trains to go a bit faster.

It has to be considered, that Avanti West Coast’s Marketing Department would be ecstatic, when told that London and Liverpool were less than two hours apart.

How Many Trains Would Be Needed?

Currently, this is a typical train round trip to Liverpool Lime Street.

  • 07:07 – Leave London Euston
  • 09:20 – Arrive Liverpool Lime Street
  • 09:47 – Leave Liverpool Lime Street
  • 12:02 – Arrive London Euston

The five-hour round-trip would indicate that five trains would be needed for the one tph service.

This train didn’t return to Liverpool, but went off to the Wembley Depot.

After their Liverpool trip, there is no real pattern of where the train will go next, as this table shows.

  • 06:41 – 6 – 33 minutes – Wembley Depot
  • 07:48 – 2 – 36 minutes – Manchester Piccadilly
  • 08:47 – 1 – 40 minutes – Manchester Piccadilly
  • 09:47 – 7 – 30 minutes – Wembley Depot
  • 10:47 – 4 – 42 minutes – Preston
  • 11:47 – 4 – 37 minutes – Preston
  • 12:47 – 1 – 34 minutes – Preston
  • 13:47 – 15 – 13 minutes – Birmingham New Street
  • 16:47 – 6 – 16 minutes – Glasgow Central
  • 17:47 – 1 – 42 minutes – Manchester Piccadilly

Note.

  1. The time is departure time from Liverpool Lime Street, the number is the platform and the minutes are the turnround time in Euston.
  2. I have left out a couple of trains as there was a very late train.
  3. There doesn’t seem to be any regular pattern.
  4. It looks like trains can be turned in under fifteen minutes.
  5. I think there was a time, when Liverpool couldn’t accept eleven-car trains, but the new longer platforms appear to accept them.
  6. Trains appear to be running services to Glasgow Central and Manchester Piccadilly, who seem to usually get eleven-car trains.

I almost think, that they’re allocating trains as they go.

With the new Class 807 trains, I suspect the following is possible.

  • London Euston to Liverpool Lime Street – Two hours
  • Turnround – Fifteen minutes
  • Liverpool Lime Street to London Euston – Two hours
  • Turnround – Fifteen minutes

This means it’s a four-and-a-half hour round trip.

  • Journey times of two hours.
  • Time enough for well-drilled staff to turn the trains.
  • Dedicated platforms at London Euston and Liverpool Lime Street.
  • It would be a very attractive customer-friendly service.

Two tph would need nine trains.

It would be everything the Marketing Department wanted!

Thoughts On The Current Class 390 Timings

As the Class 390 trains are a 125 mph train, their base timing of 93 minutes, between London and Liverpool should still be the same.

As their doors and lobbies are similar in design to those of the Hitachi AT-300 trains, I would allow the same two minutes of dwell time at each station.

Current timings of services on the route vary between 132 and 134 minutes. I’ll take the average of 133 minutes.

So the current services take thirty-four minutes to perform the four accelerate and decelerate sequences on the route.

It would appear that this sequence would take eight-and-a-half minutes in comparison with the six minutes of the new Hitachi AT-300 trains.

An Improved London Euston and Blackpool North Service

The new AT-300 trains will also be running to Blackpool.

  • London Euston and Blackpool North takes between two hours and forty-four minutes and two hours and fifty-nine minutes.
  • Journey times are not very consistent, probably due to timetabling difficulties.
  • Trains stop between four and five times on the West Coast Main Line.

Would the faster stops of the new AT-300 trains mean that Avanti West Coast could run a more regular timetable, with all services under three hours?

It should also be noted, that Grand Central will start a London Euston and Blackpool North service in Spring 2020.

As the rolling stock for this new service will be Class 90 locomotives hauling rakes of Mark 4 coaches, that will be limited to 110 mph, are Avanti West Coast making sure, that they have the fastest trains on the route?

Would AT-300 Trains Save Time To Other Avanti West Coast Destinations?

If we assume that AT-300 trains can save two-and-a-half minutes per accelerate and decelerate sequence times could change as follow.

  • Birmingham New Street – One hour and twenty-two minutes – Three stops – One hour and twelve minutes
  • Coventry – One hour – Two stops – Fifty-five minutes
  • Crewe – One hour and thirty-four minutes – One stop – One hour and thirty minutes
  • Glasgow – As services stop six or thirteen times, there may be substantial savings to be achieved.
  • Manchester – Between two hours and seven minutes and two hours and thirteen minutes – Three stops – Between one hour and fifty-seven minutes and two hours and three minutes.

Note.

  1. The number of accelerate and decelerate sequences is one more than the number of stops.
  2. Coventry services would be under an hour.
  3. Two out of three Manchester services would be under two hours.

This analysis illustrates how fast train performance is important in more customer-friendly services.

Conclusion

I believe the following will be possible.

  • A two hour service between London Euston and Liverpool Lime Street will be possible with Avanti West Coast’s new AT-300 trains.
  • The current Class 390 trains could go a bit faster.
  • I estimate that a Class 807 train could save as much as two-and-a-half-minutes at each stop.
  • Blackpool North and London times will be comfortably under three hours.
  • Coventry and London times will be comfortably under an hour.

The performance of these Class 807 trains will improve the West Coast Main Line.

March 27, 2020 Posted by | Transport | , , , , , , | 3 Comments

Could Battery-Electric Hitachi Trains Work Hull Trains’s Services?

Before I answer this question, I will lay out the battery-electric train’s specification.

Hitachi’s Proposed Battery Electric Train

Based on information in an article in Issue 898 of Rail Magazine, which is entitled Sparking A Revolution, the specification of Hitachi’s proposed battery-electric train is given as follows.

  • Based on Class 800-802/804 trains or Class 385 trains.
  • Range of 55-65 miles.
  • Operating speed of 90-100 mph
  • Recharge in ten minutes when static.
  • A battery life of 8-10 years.
  • Battery-only power for stations and urban areas.
  • Trains are designed to be created by conversion of existing Class 80x trains.

For this post, I will assume that the train is five cars long. This is the length of Hull Trains’s Class 802 trains.

Recently, Hitachi have released this infographic.

This seems to give the same information and a definitive range of 90 km or 56 miles.

Hull Trains’s Services

Hull Trains run a train between Kings Cross and Hull, with some trains extending to Beverley.

  • The service runs at a frequency of five trains per day (tpd) to Hull station and two tpd to Beverley station.
  • Intermediate stations are Stevenage, Grantham, Retford, Doncaster, Selby, Howden, Brough and Cottingham

The Beverley service is 213 miles long and takes three hours and seven minutes.

These are facts about the operation of the service.

  • The train changes between diesel and electric operation at Temple Hirst Junction, which is on the electrified East Coast Main Line.
  • Temple Hirst Junction is forty-four miles from Beverley and thirty-six miles from Hull.
  • Trains to and from Beverley reverse at Hull and and are allowed eighteen minutes for the operation.
  • This reverse at Hull is enough time to charge the train’s batteries using a Fast-Charging system.

As these trains could have a range of at least fifty-five miles on battery power, is there any point to bother with diesel?

Could Hull Trains and TransPennineExpress Share A Fast-Charger?

In Could Battery-Electric Hitachi Trains Work TransPennine Express’s Services?, I said this about their Manchester Piccadilly and Hull service.

As with the Scarborough and Redcar Central services, a Fast-Charging system would probably be needed at Hull.

As Hull Trains and TransPennine Express are both First Group companies, I would assume they would share amicably!

But would they allow LNER’s Azumas to use their Fast-Charger?

Could Hull Station Go Zero-Carbon?

If all the Hitachi trains used by Hull Trains, LNER and TransPrnnine Express were to use battery power to run between Hull station and the nearest electrification, the only diesel trains using the station would be Northern‘s assortment.

Northern run services through or to Hull as follows.

  • Sheffield and Hull
  • Sheffield and Bridlington
  • Hull and Scarborough
  • Hull and York

All services have a frequency of around one train per hour.

These services could be run by either battery-electric or hydrogen-electric trains.

Hull station is also a big bus interchange, so these would need to be converted to electric or hydrogen.

I’m sure iTM Power not far away in Sheffield, would be happy to provide a hydrogen system to fuel the buses and the trains.

Conclusion

It looks to me, that if a Fast-Charging system, were to be fitted at Hull and used during reverse or turnround at the station, that a Class 802 train fitted with batteries could work Hull Train’s service without using a drop of diesel.

I can just see the advertising – Hull Trains – Your carbon-free way between London and Hull!

It wouldn’t even need any electrification, other than the Fast-Charging system at Hull.

I also believe that Hull station and the co-located bus station could go carbon-free.

 

February 26, 2020 Posted by | Transport | , , , , , , , , , , | 5 Comments

Could Battery-Electric Hitachi Trains Work TransPennine Express’s Services?

Before I answer this question, I will lay out the battery-electric train’s specification.

Hitachi’s Proposed Battery Electric Train

Based on information in an article in Issue 898 of Rail Magazine, which is entitled Sparking A Revolution, the specification of Hitachi’s proposed battery-electric train is given as follows.

  • Based on Class 800-802/804 trains or Class 385 trains.
  • Range of 55-65 miles.
  • Operating speed of 90-100 mph
  • Recharge in ten minutes when static.
  • A battery life of 8-10 years.
  • Battery-only power for stations and urban areas.
  • Trains are designed to be created by conversion of existing Class 80x trains

For this post, I will assume that the train is five cars long. This is the length of TransPennine Express’s Class 802 trains.

TransPennine Express’s Services

These are TransPennine Express services that run in the North of England and to Scotland.

I shall go through all the services and see how they would be affected by Hitachi’s proposed battery-electric train.

Liverpool Lime Street And Edinburgh

  • The service runs at a frequency of one train per hour (tph)
  • Intermediate stations are Newton-le-Willows, Manchester Victoria, Huddersfield, Leeds, York, Darlington, Durham, Newcastle and Morpeth

The service is 305 miles long and takes four hours and 25 minutes.

The route can be divided into sections, some of which are electrified and some of which are not!

  • Liverpool Lime Street and Manchester Victoria – 32 miles – Electrified
  • Manchester Victoria and Huddersfield  – 26 miles – Not Electrified
  • Huddersfield and Dewsbury – 8 miles – Not Electrified
  • Dewsbury and Leeds – 9 miles – Not Electrified
  • Leeds and Colton Junction – 20 miles – Not Electrified
  • Colton Junction and Edinburgh – 220 miles – Electrified

Note that the distance between Manchester Victoria and Colton Junction, which is the only section of the route without electrification is sixty-three miles, which is just within the 55-65 mile battery range of Hitachi’s proposed battery-electric train.

That is too close for my liking, as what happens, if the train gets delayed by an operational incident.

In this article on the BBC, which was published in August 2019 and is entitled Detailed TransPennine £2.9bn Rail Upgrade Plans Unveiled, the following is said.

  • The route between Huddersfield and Dewsbury will be electrified.
  • Parts of this route will have two extra tracks.
  • The plans will be going to full consultation, later in the year.

This would mean that a route summary would be like this.

  • Liverpool Lime Street and Manchester Victoria – 32 miles – Electrified
  • Manchester Victoria and Huddersfield  – 26 miles – Not Electrified
  • Huddersfield and Dewsbury – 8 miles – Electrified
  • Dewsbury and Colton Junction – 29 miles – Not Electrified
  • Colton Junction and Edinburgh – 220 miles – Electrified

The two sections without electrification are well within the 55-65 mile battery range of Hitachi’s proposed battery electric train.

It should also be noted that the electrification between Newcastle and Edinburgh is rather down on power and needs upgrading.

I would suspect that Hitachi’s proposed battery electric train could handle this power deficiency by using the batteries.

Liverpool Lime Street And Scarborough

  • The service runs at a frequency of one tph
  • Intermediate stations are Lea Green, Manchester Victoria, Stalybridge, Huddersfield, Leeds, Garforth, York, Malton and Seamer

The service is 142 miles long and takes two hours and 58 minutes.

The route can be divided into sections, some of which are electrified and some of which are not!

  • Liverpool Lime Street and Manchester Victoria – 32 miles – Electrified
  • Manchester Victoria and Huddersfield  – 26 miles – Not Electrified
  • Huddersfield and Dewsbury – 8 miles – Not Electrified
  • Dewsbury and Leeds – 9 miles – Not Electrified
  • Leeds and Colton Junction – 20 miles – Not Electrified
  • Colton Junction and York – 6 miles – Electrified
  • York and Scarborough – 42 miles – Not Electrified

Between Liverpool Lime Street and Colton Junction, the route is identical to the Liverpool Lime Street and Edinburgh service.

The improvement of the section between Huddersfield and Dewsbury will also benefit this service and mean that a route summary would be like this.

  • Liverpool Lime Street and Manchester Victoria – 32 miles – Electrified
  • Manchester Victoria and Huddersfield  – 26 miles – Not Electrified
  • Huddersfield and Dewsbury – 8 miles – Electrified
  • Dewsbury and and Colton Junction – 29 miles – Not Electrified
  • Colton Junction and York – 6 miles – Electrified
  • York and Scarborough – 42 miles – Not Electrified

As Hitachi’s proposed battery-electric train has a range of 55-65 miles on battery power, it looks to me that this service could be handled by the train.

It would need a Fast Charge system at Scarborough to recharge the batteries to be able to return to York.

But, as the timetable allows a generous turn-round, fully-charging the batteries shouldn’t be a problem.

Manchester Airport And Newcastle

  • The service runs at a frequency of one tph
  • Intermediate stations are Manchester Piccadilly, Manchester Oxford Road, Manchester Victoria, Huddersfield, Dewsbury, Leeds, York, Northallerton, Darlington, Durham and Chester-le-Street

The service is 162 miles long and takes three hours and one minute.

The route can be divided into sections, some of which are electrified and some of which are not!

  • Manchester Airport and Manchester Victoria – 13 miles – Electrified
  • Manchester Victoria and Huddersfield  – 26 miles – Not Electrified
  • Huddersfield and Dewsbury – 8 miles – Not Electrified
  • Dewsbury and Leeds – 9 miles – Not Electrified
  • Leeds and Colton Junction – 20 miles – Not Electrified
  • Colton Junction and Edinburgh – 86 miles – Electrified

Between Manchester Victoria and Colton Junction, the route is identical to the two Liverpool Lime Street services, that I discussed previously.

The improvement of the section between Huddersfield and Dewsbury will also benefit this service and mean that Hitachi’s proposed battery-electric train could handle this route with ease.

Manchester Airport And Redcar Central

  • The service runs at a frequency of one tph
  • Intermediate stations are Gatley, Manchester Piccadilly, Manchester Oxford Road, Manchester Victoria, Huddersfield, Dewsbury, Leeds, York, Thirsk, Northallerton, Yarm, Thornaby and Middlesbrough

The service is 162 miles long and takes three hours and fifteen minutes.

The route can be divided into sections, some of which are electrified and some of which are not!

  • Manchester Airport and Manchester Victoria – 13 miles – Electrified
  • Manchester Victoria and Huddersfield  – 26 miles – Not Electrified
  • Huddersfield and Dewsbury – 8 miles – Not Electrified
  • Dewsbury and Leeds – 9 miles – Not Electrified
  • Leeds and Colton Junction – 20 miles – Not Electrified
  • Colton Junction and Northallerton – 35 miles – Electrified
  • Northallerton and Redcar Central – 29 miles – Not Electrified

Between Manchester Victoria and Colton Junction, the route is identical to the previously discussed services.

The improvement of the section between Huddersfield and Dewsbury will also benefit this service and mean that Hitachi’s proposed battery-electric train could handle this route with ease.

As with the Scarborough service, a Fast-Charge system would probably be needed at Redcar Central.

Manchester Piccadilly And Hull

  • The service runs at a frequency of one tph
  • Intermediate stations are Stalybridge, Huddersfield, Leeds, Selby and Brough

The service is 94 miles long and takes two hours and four minutes.

The route can be divided into sections, some of which are electrified and some of which are not!

  • Manchester Piccadilly and Huddersfield  – 25 miles – Not Electrified
  • Huddersfield and Dewsbury – 8 miles – Not Electrified
  • Dewsbury and Leeds – 9 miles – Not Electrified
  • Leeds and Hull – 52 miles – Not Electrified

Between Huddersfield and Leeds, the route is identical to the previously discussed services.

The improvement of the section between Huddersfield and Dewsbury will also benefit this service and mean that Hitachi’s proposed battery-electric train should be able to handle this route.

As with the Scarborough and Redcar Central services, a Fast-Charge system would probably be needed at Hull.

Manchester Piccadilly And Huddersfield

  • The service runs at a frequency of one tph
  • Intermediate stations are Stalybridge, Mossley, Greenfield, Marsden and Slaithwaite

The service is 25 miles long and takes forty-three minutes.

The route is without electrification.

Hitachi’s proposed battery-electric train should be able to handle this route with ease.

The train could charge at either end using the electrification.

Huddersfield And Leeds

  • The service runs at a frequency of one tph
  • Intermediate stations are Deighton, Mirfield, Ravensthorpe, Dewsbury, Batley, Morley and Cottingley

The service is 17 miles long and takes thirty-six minutes.

Hitachi’s proposed battery-electric train should be able to handle this route with ease.

The train could charge at Leeds using the electrification.

Manchester Airport And Cleethorpes

  • The service runs at a frequency of one tph
  • Intermediate stations are Manchester Piccadilly, Stockport, Sheffield, Meadowhall Interchange, Doncaster, Scunthorpe, Barnetby, Habrough and Grimsby Town

The service is 124 miles long and takes two hours and fifty-eight minutes.

he route can be divided into sections, some of which are electrified and some of which are not!

  • Manchester Airport and Stockport – 16 miles – Electrified
  • Stockport and Sheffield  – 37 miles – Not Electrified
  • Sheffield and Doncaster – 19 miles – Not Electrified
  • Doncaster and Cleethorpes – 52 miles – Not Electrified

There would need to be some en route charging and surely the easiest way to achieve this would be to extend the electrification at Doncaster to Sheffield.

As with the other services, a Fast-Charge system would probably be needed at Cleethorpes.

Manchester Airport And Glasgow Central Or Edinburgh Waverley Via Preston

This service is all-electric.

Conclusion

Hitachi’s proposed battery-electric train can handle all of TransPennine’s routes without using one drop of diesel.

What I have found interesting, is that the eight miles of electrification between Huddersfield and Dewsbury appears to make the operation of a battery-electric train a lot easier.

It looks like someone at Hitachi and Network Rail have taken a calculator to a decent hostelry and worked out a cunning plan!

 

 

 

February 25, 2020 Posted by | Transport | , , , , , , , , , , | 11 Comments

Could Battery-Electric Hitachi Trains Work Chiltern Railways’s Services?

Before I answer this question, I will lay out a few specifications and the current status.

Hitachi’s Proposed Battery Electric Train

Based on information in an article in Issue 898 of Rail Magazine, which is entitled Sparking A Revolution, the specification of Hitachi’s proposed battery-electric train is given as follows.

  • Based on Class 800-802/804 trains or Class 385 trains.
  • Range of 55-65 miles.
  • Operating speed of 90-100 mph
  • Recharge in ten minutes when static.
  • A battery life of 8-10 years.
  • Battery-only power for stations and urban areas.

For this post, I will assume that the train is four or five cars long.

Chiltern Railways’ Main Line Services

These are Chiltern Railways services that run on the Chiltern Main Line.

London Marylebone And Gerrards Cross

  • The service runs at a frequency of one train per hour (tph)
  • Intermediate stations are Wembley Stadium, Sudbury & Harrow Road, Sudbury Hill Harrow, Northolt Park, West Ruislip, Denham and Denham Golf Club

The service is nineteen miles long and takes thirty minutes.

It should be possible to run this service with trains charged at one end of the route.

London Marylebone And High Wycombe

  • The service runs at a frequency of one tph
  • Intermediate stations are Wembley Stadium,  South Ruislip, Gerrards Cross and Beaconsfield
  • Some services terminate in a bay platform 1 at High Wycombe station.

The service is twenty-eight miles long and takes forty-two minutes.

It should be possible to run this service with trains charged at one end of the route.

London Marylebone And Aylesbury Via High Wycombe

  • The service runs at a frequency of one tph
  • Intermediate stations are Gerrards Cross, Seer Green and Jordans, Beaconsfield, High Wycombe, Saunderton, Princes Risborough, Monks Risborough and Little Kimble
  • This service usually terminates in Platform 1 at Aylesbury station.

The service is 43.5 miles long and takes sixty-six minutes.

It should be possible to run this service with trains charged at both ends of the route.

London Marylebone And Banbury (And Stratford-upon-Avon)

  • The service runs at a frequency of one tph
  • Intermediate stations for the Banbury service are Denham Golf Club, Gerrards Cross, Beaconsfield, High Wycombe, Princes Risborough, Haddenham & Thame Parkway, Bicester North and Kings Sutton.
  • Intermediate stations for the Stratford-upon-Avon service are Denham Golf Club, Gerrards Cross, Beaconsfield, High Wycombe, Princes Risborough, Haddenham & Thame Parkway, Bicester North and Kings Sutton, Banbury, Leamington Spa, Warwick, Hatton, Claverdon, Bearley, Wilmcote and Stratford-upon-Avon Parkway.

The Banbury service is 69 miles long and takes one hour and forty-five minutes.

The Stratford-upon-Avon service is 104 miles long and takes two hours and twenty-two minutes.

Running these two services will need a bit of ingenuity.

Leamington Spa And Birmingham Moor Street

  • The service runs at a frequency of one train per two hours (tp2h)
  • Intermediate stations for the service are Warwick, Hatton, Lapworth, Dorridge and Solihull.

The service is 23 miles long and takes forty-one minutes.

It should be possible to run this service with trains charged at one end of the route.

London Marylebone And Birmingham Moor Street

  • The service runs at a frequency of one tph
  • Intermediate stations for the service are High Wycombe, Banbury, Leamington Spa, Warwick Parkway and Solihull.

The service is 112 miles long and takes one hour and forty-four minutes.

It should be possible to run this service with trains charged at both ends of the route and also fully charged somewhere in the middle.

Distances from London Marylebone of the various stations are.

  • High Wycombe – 28 miles
  • Bicester North – 55 miles
  • Banbury – 69 miles
  • Leamington Spa – 89 miles
  • Warwick – 91 miles
  • Warwick Parkway – 92 miles
  • Solihull – 105 miles

Consider.

  • It looks like a fully-charged train from London Marylebone could reach Bicester North, but not Banbury, with a 55-65 mile battery range.
  • Travelling South, Bicester North could be reached with a fully-charged train from Birmingham Moor Street.

But it would appear to be too marginal to run a reliable service.

London Marylebone And Birmingham Snow Hill

  • The service runs at a frequency of one tph
  • Intermediate stations for the service are Bicester North, Banbury, Leamington Spa, Warwick, Warwick Parkway, Dorridge, Solihull and Birmingham Moor Street

The service is 112 miles long and takes two hours and a minute.

It should be possible to run this service with trains charged at both ends of the route and also fully charged somewhere in the middle.

London Marylebone And Kidderminster

Some services between London Marylebone and Birmingham Snow Hill are extended to Kidderminster.

The distance between Kidderminster and Birmingham Snow Hill is twenty miles and the service takes forty-two minutes.

London Marylebone And Oxford

  • The service runs at a frequency of two tph
  • Intermediate stations for the service are High Wycombe, Haddenham & Thame Parkway, Bicester Village, Islip and, Oxford Parkway.
  • The service runs into dedicated platforms at Oxford station.

The service is 67 miles long and takes one hour and nine minutes.

It should be possible to run this service with trains charged at both ends of the route and some supplementary charging somewhere in the middle.

Chiltern’s Aylesbury Line Services

These are Chiltern Railway‘s services that run on the London And Aylesbury Line (Amersham Line).

London Marylebone And Aylesbury (And Aylesbury Vale Parkway) via Amersham

  • The service runs at a frequency of two tph
  • Intermediate stations are Harrow-on-the-Hill, Rickmansworth, Chorleywood, Chalfont & Latimer, Amersham, Great Missenden, Wendover and Stoke Mandeville.
  • It appears that there is sufficient time at Aylesbury Vale Parkway in the turnround to charge the train using a Fast Charge system.

The Aylesbury service is 39 miles long and takes one hour.

The Aylesbury Vale Parkway service is 41 miles long and takes one hour and twelve minutes.

It should be possible to run both services with trains charged at both ends of the route.

 

Chiltern Railways’ Future Train Needs

Chiltern Railways will need to add to or replace some or all of their fleet in the near future for various reasons.

Decarbonisation

Chiltern are probably the passenger train operating company, with the lowest proportion of zero-carbon trains. It scores zero for zero-carbon!

Government policy of an extinction date of 2040 was first mentioned by Jo Johnson, when he was Rail Minister in February 2018.

As new trains generally last between thirty and forty years and take about five years to design and deliver, trains ordered tomorrow, will probably still be running in 2055, which is fifteen years after Jo Johnson’s diesel extinction date.

I feel that, all trains we order now, should be one of the following.

  • All-electric
  • Battery-electric
  • Hydrogen-electric
  • Diesel electric trains, that can be converted to zero-carbon, by the replacement of the diesel power, with an appropriate zero-carbon source.

Hitachi seem to be designing an AT-300 diesel-electric train for Avanti West Coast, where the diesel engines can be replaced with batteries, according to an article in the January 2020 Edition of Modern Railways.

Pollution And Noise In And Around Marylebone Station

This Google Map shows the area around Marylebone station.

Cinsider.

  • Marylebone station is in the South-East corner of the map.
  • The station is surrounded by some of the most expensive real estate in London.
  • A lot of Chiltern’s trains do not meet the latest regulations for diesel trains.
  • Blackfriars, Cannon Street, Charing Cross, Euston, Fenchurch Street, Kings Cross, Liverpool Street, London Bridge, Paddington, St. Pancras, Victoria and Waterloo stations are diesel-free or have plans to do so.

Will the residents, the Greater London Council and the Government do something about improving Chiltern’s pollution and noise?

New trains would be a necessary part of the solution.

New And Extended Services

Consider.

  • Chiltern plan to extend the Aylesbury Parkway service to Milton Keynes in connection with East West Rail. This service would appear to be planned to run via High Wycombe and Princes Risborough.
  • There has also been proposals for a new Chiltern terminus at Old Oak Common in West London to connect to Crossrail, High Speed Two and the London Overground.
  • Chiltern could run a service between Oxford and Birmingham Moor Street.
  • With the demise of the Croxley Rail Link around Watford, Chiltern could be part of a revived solution.
  • In Issue 899 of Rail Magazine in an article entitled Calls For Major Enhancement To Oxford And Didcot Route, it states that there will be three tph between Oxford and Marylebone, two of which will start from a new station at Cowley.

Chiltern certainly have been an expansionist railway in the past.

I wouldn’t be surprised to see Chiltern ordering new trains.

As I said earlier, I suspect they wouldn’t want to order some new short-life diesel trains.

125 mph Running

Consider.

  • The West Coast Main Line has an operating speed of 125 mph.
  • East West Rail is being built for an operating speed of 125 mph.
  • Some parts of the Chiltern Main Line could be electrified and upgraded to 125 mph operation.

For these reasons, some of Chiltern’s new fleet must be capable of modification, so it can run at 125 mph, where it is possible.

100 mph Trains

Around half of Chiltern’s fleet are 100 mph trains, but the other half, made up of Class 165 trains only have a 75 mph operating speed.

Running a fleet, where all trains have a similar performance, must give operational and capacity improvements.

Increasing Capacity

Chiltern’s Main Line service to Birmingham is run using six Mark 3 carriages between a Class 68 locomotive and a driving van trailer.

These trains are 177.3 metres long and hold 444 passengers.

These trains are equivalent in length to a seven-car Hitachi Class AT-300 train, which I estimate would hold just over 500 passengers.

Changing some trains for a more modern design, could increase the passenger capacity, but without increasing the train length.

Aventi West Coast And High Speed Two

Chiltern’s services to Birmingham will come under increasing pressure from Avanti West Coast‘s revamped all-electric fleet, which within ten years should be augmented by High Speed Two.

It will be difficult selling the joys of comfortable diesel trains against the environmental benefits of all-electric zero-carbon faster trains.

Great Western Railway And Possible Electrification To Oxford

Chiltern’s services to Oxford will also come under increasing pressure from Great Western Railway’s services to Oxford.

  • When Crossrail opens, Paddington will be a much better terminal than Marylebone.
  • Crossrail will offer lots of new connections from Reading.
  • Great Western Railway could run their own battery-electric trains to Oxford.
  • Great Western Railway will be faster between London and Oxford at 38 minutes to Chiltern’s 65 minutes.

Will new trains be needed on the route to retain passengers?

Will Chiltern Have Two Separate Fleets?

Currently, Chiltern Railways have what is effectively  two separate fleets.

  • A Chiltern Main Line fleet comprised of five sets of six Mark 3 coaches, a Class 68 locomotive and a driving van trailer.
  • A secondary fleet of thirty-four assorted diesel multiple units of various ages and lengths, which do everything else.

But would this be their fleet, if they went for a full renewal to fully-decarbonise?

Would they acquire more Main Line sets to work the services to Birmingham, Kidderminster and perhaps some other Midlands destinations?

Do the Oxford services require more capacity for both Oxford and Bicester Village and would more Main Line sets be a solution?

What destinations will be served and what trains will be needed to work services from new destinations like Milton Keynes and Old Oak Common?

I can see Chiltern acquiring two fleets of battery-electric trains.

  • Chiltern Main Line trains based on Hitachi AT-300 trains with between five and seven cars.
  • Suburban trains for shorter journeys, based on Hitachi Class 385 trains with perhaps four cars.

Both would be fairly similar under the skin.

Conclusion On Chiltern Railways’ Future Trains

I am very much drawn to the conclusion, that Chiltern will have to introduce a new fleet of zero-carbon trains.

Electrification would be a possibility, but have we got enough resources to carry out the work, at the same time as High Speed Two is being built?

Hydrogen might be a possibility, but it would probably lead to a loss of capacity on the trains.

Battery-electric trains might not be a solution, but I suspect they could be the best way to increase Chiltern’s fleet and decarbonise at the same time.

  • Hitachi’s basic train design is used by several train operating companies and appears to be well received, by Train operating companies, staff and passengers.
  • Hitachi appear to be well-advanced with a battery-electric version.
  • Hitachi seem to have sold the concept of battery-electric AT-300 trains to Avanti West Coast to replace their diesel-electric Class 221 trains.

The sale of trains to Avanti West Coast appears to be very significant, in that Hitachi will be delivering a diesel-electric fleet, that will then be converted to battery-electric.

I like this approach.

  • Routes can be converted gradually and the trains fully tested as diesel-electric.
  • Electrification and/or charging stations can be added, to the rail network.
  • As routes are ready, the trains can be converted to battery-electric.

It would appear to be a low-risk approach, that could ensure conversion of the fleet does not involve too much disruption to passengers.

Possible Electrification That Might Help Chiltern Railways

These lines are or could be electrified in the near future.

Amersham Line Between Harrow-on-the-Hill and Amersham Stations

The only electrified line on the Chiltern Railways network is the section of the Amersham Line between Harrow-on-the-Hill and Amersham stations.

  • It is electrified using London Underground’s system.
  • It is fourteen miles long and trains take twenty-two minutes.
  • London Marylebone and Harrow-on-the-Hill is a distance of only nine miles
  • Aylesbury and Amersham is a distance of only fifteen miles.

Could this be of use in powering Children Railways’ trains?

The maths certainly look promising, as if nothing else it means the maximum range of one of Hitachi’s proposed battery-electric trains is fourteen miles further, which may enable Chiltern’s proposed service between London Marylebone and Milton Keynes to reach the 25 KVAC electrification at Bletchley.

But if the new trains were to use the London Underground electrification, they would have to be dual-voltage units.

As Hitachi have already built dual-voltage Class 395 trains for the UK, I don’t think, that this will be a problem.

Dorridge/Whitlock’s End And Worcestershire via Birmingham Snow Hill

In the February 2020 Edition of Modern Railways, there is a feature, which is entitled West Midlands Builds For The Future.

This is said about electrification on the Snow Hill Lines.

Remodelling Leamington is just one of the aspirations WMRE has for upgrading the Great Western’s Southern approach to Birmingham, which serves a number of affluent suburbs, with growing passenger numbers. “Electrification of the Snow Hill Lines commuter network is something which we are keen to explore.’ says Mr. Rackliff.

As well as reducing global carbon emissions, yhis would also help reduce air pollution in central Birmingham and local population centres. ‘From a local perspective, we’d initially want to see electrification of the core network between Dorridge/Whitlock’s End and Worcestershire via Birmingham Snow Hill as a minimum, but from a national perspective it would make sense to electrify the Chiltern Main Line all the way to Marylebone.’

Note the following distances from Dorridge.

  • Leamington Spa – 13 miles
  • Banbury – 33 miles
  • Bicester North – 47 miles
  • High Wycombe – 74 miles

It looks as if, electrification of the Snow Hill Lines would allow trains to travel from Bicester or Banbury to Birmingham Moor Street, Birmingham Snow Hill or Kidderminster.

Reading And Nuneaton via Didcot, Oxford, Banbury, Leamington Spa And Coventry

This route, which is used by CrossCountry services and freight trains, has been mentioned in the past, as a route that may be electrified.

Note the following distances from Didcot.

  • Oxford – 10 miles
  • Ayhno Junction – 27 miles
  • Banbury 32 miles
  • Leamington Spa – 52 miles
  • Coventry – 62 miles
  • Nuneaton – 72 miles

Electrifying this route would link together the following lines.

Note that Aynho Junction is only 36 miles from High Wycombe and 64 miles from London Marylebone.

Fast Charging At Terminal Stations

Chiltern Railways use the following terminal stations.

  • Aylesbury station, where a bay platform is used.
  • Aylesbury Parkway station
  • Banbury station, where a bay platform is used.
  • Birmingham Moor Street station, where all bay platforms are used.
  • Birmingham Show Hill station
  • High Wycombe station, where a bay platform is used.
  • Kidderminster station
  • London Marylebone station, where all platforms are used.
  • Oxford station, where two North-facing bay platforms are used.
  • Stratford-upon-Avon station

I suspect that something like Viviarail’s Fast-Charge system, based on well-proven third-rail technology could be used.

  • This system uses a bank of batteries to transfer power to the train’s batteries.
  • The transfer is performed using modified high-quality third-rail electrification technology.
  • Battery-to-battery transfer is fast, due to the low-impedance of batteries.
  • The system will be able to connect automatically, without driver action.
  • The third-rail is only switched on, when a train is present.
  • The battery bank will be trickle-charged from any convenient power source.

Could the battery bank be installed under the track in the platform to save space?

If Network Rail and Chiltern Railways would prefer a solution based on 25 KVAC technology, I’m sure that Furrer and Frey or another electrification company have a solution.

Installing charging in a platform at a station, would obviously close the platform for a couple of months, but even converting all six platforms at Marylebone station wouldn’t be an impossible task.

Possible Electrification Between London Marylebone And Harrow-on-the-Hill

Consider.

  • All trains to Aylesbury have to travel between London Marylebone and Harrow-on-the-Hill stations, which is nine miles of track without electrification. It takes about twelve minutes.
  • Trains via High Wycombe use this section of track as far as Neasden South Junction, which is give miles and typically takes seven minutes.
  • Leaving Marylebone, these trains are accelerating, so will need more power.

This map from carto.metro.free.fr shows the lines around Neasden.

Note.

  1. The Chiltern Railways tracks are shown in black.
  2. Two tracks continue to the North-West to Harrow-on-the-Hill and Aylesbury.
  3. Two tracks continue to the West to Wembley Stdium station and High Wycombe.
  4. Two tracks continue South-East into Marylebone station, running non-stop.
  5. The Jubilee Line tracks in the middle are shown in silver,
  6. The Metropolitan Line tracks are shown in mauve.

These pictures were taken of the two Chiltern tracks from a Jubilee Line train running between West Hampstead and Wembley Park stations.

Note, that the tracks have no electrification and there is plenty of space.

I feel that to accelerate the trains out of Marylebone and make sure that the batteries are fully charged, that these tracks should be electrified.

There is space on this section for 25 KVAC overhead, but would it be better to use an electrified rail system?

  • As you approach Marylebone there are several tunnels, which might make installation of overhead wires difficult and disruptive.
  • There are London Underground tracks and their third and fourth rail electrification everywhere.
  • Between Harrow-on-the Hill and Amersham stations, Chiltern and Metropolitan Line trains share the same track, which is electrified to London Underground standards and used for traction power by the Metropolitan Line trains.
  • Trains connect and disconnect to third-rail electrification, without any complication and have been doing it for over a hundred years.

On the other hand, there are arguments against third-rail systems like safety and electrical inefficiency.

Running Chiltern’s Routes Using A Battery-Electric Train

I will now take each route in order and look at how battery-electric trains could run the route.

London Marylebone And Oxford

Consider.

  • This route is 67 miles.
  • An out and back trip is 134 miles.
  • The route is probably too long for the proposed Hitachi battery-electric train, without some intermediate charging.
  • Trains currently wait in the bay platforms at Oxford for up to thirty minutes, which is more than enough time to fully-charge the train for return to Marylebone.

When I outlined this route, I said this.

It should be possible to run this service with trains charged at both ends of the route and some supplementary charging somewhere in the middle.

I’m discussing this route first, as it has the complication of needing some form of intermediate charging.

The obvious place for some intermediate charging would be High Wycombe station.

  • It is 28 miles from Marylebone
  • It is 38 miles from Oxford
  • Trains seem to stop for a couple of minutes at High Wycombe.

As trains would only need to pick up a half-charge at the station, would it be possible for a train passing through High Wycombe to be able to use a Fast-Charge system, to give the battery a boost?

As a Control and Electrical Engineer by training, I think that this is more than possible.

It leads me to believe that with Fast Charging systems at Marylebone, Oxford and High Wycombe, Hitachi’s proposed battery-electric trains can run a reliable service between Marylebone and Oxford.

London Marylebone And Gerrards Cross

Consider.

  • This route is just nineteen miles.
  • An out and back trip is thirty-eight miles.
  • Trains appear to use a reversing siding to change tracks to return to London. They wait in the siding for up to thirty minutes, which is more than enough time to fully-charge the train for return to Marylebone.

I am fairly sure, that this route could be run by trains charged at Marylebone station only.

However, if charging is needed at Gerrards Cross, there is plenty of time, for this to be performed in the reversing siding.

It might even be reversed with all charging taking place at Gerrards Cross, so that fast turnrounds can be performed in Marylebone station.

London Marylebone And High Wycombe

Consider.

  • This route is just twenty-eight miles.
  • An out and back trip is fifty-six miles.
  • Trains wait in the bay platform for up to thirty minutes, which is more than enough time to fully-charge the train for return to Marylebone.

Everything said for the Gerrards Cross service would apply to the High Wycombe service.

London Marylebone And Banbury

Consider.

  • This route is 69 miles.
  • An out and back trip is 138 miles.
  • The route is probably too long for the proposed Hitachi battery-electric train, without some intermediate charging.
  • Trains wait in platform 4 at Banbury for around thirty minutes, which is more than enough time to fully-charge the train for return to Marylebone.
  • Trains call at High Wycombe station.

As with the Marylebone and Oxford route, this route will need some intermediate charging and as with the Oxford service, High Wycombe is the obvious choice,

High Wycombe is only 41 miles from Banbury, which is well within range of Hitachi’s proposed battery-electric train.

London Marylebone And Stratford-upon-Avon

Consider.

  • This route is 104 miles.
  • An out and back trip is 208 miles.
  • The distance between Stratford-upon-Avon and Banbury is 35 miles.
  • The route is probably too long for the proposed Hitachi battery-electric train, without some intermediate charging.
  • Trains wait in Platform 1 at Stratford-upon-Avon for over thirty minutes, which is more than enough time to fully-charge the train for return to Marylebone.
  • Trains call at Banbury station, where they wait for several minutes.
  • Trains call at High Wycombe station.

As with the Marylebone and Oxford and Marylebone and Banbury routes, this route will need some intermediate charging and as with the Oxford and Banbury services, High Wycombe is the obvious choice,

But this route could also use the Fast Charging system at Banbury.

London Marylebone And Birmingham Moor Street

Consider.

  • This route is 112 miles.
  • An out and back trip is 224 miles.
  • The distance between Birmingham Moor Street and Banbury is 43 miles.
  • The route is probably too long for the proposed Hitachi battery-electric train, without some intermediate charging.
  • Trains wait in the bay platform at Birmingham Moor Street for thirteen minutes, which is more than enough time to fully-charge the train for return to Marylebone.
  • Trains call at Banbury and High Wycombe stations.

As with the Marylebone and Stratford-upon-Avon route, this route will need some intermediate charging and as with the Stratford-upon-Avon service, High Wycombe and Banbury are the obvious choice,

London Marylebone And Birmingham Snow Hill

Consider.

  • This route is 112 miles.
  • An out and back trip is 224 miles.
  • The distance between Birmingham Snow Hill and Banbury is 43 miles.
  • The route is probably too long for the proposed Hitachi battery-electric train, without some intermediate charging.
  • Trains wait in the bay platform at Birmingham Snow Hill for ten minutes, which is more than enough time to fully-charge the train for return to Marylebone.
  • Trains call at Banbury and High Wycombe stations.

As with the Marylebone and Stratford-upon-Avon route, this route will need some intermediate charging and as with the Stratford-upon-Avon service, High Wycombe and Banbury are the obvious choice,

London Marylebone And Kidderminster

Consider.

  • This route is 132 miles.
  • An out and back trip is 264 miles.
  • The distance between Kidderminster and Banbury is 63 miles.
  • The route is probably too long for the proposed Hitachi battery-electric train, without some intermediate charging.
  • Trains call at Banbury and High Wycombe stations.

As with the Marylebone and Stratford-upon-Avon and Birmingham routes, this route will need some intermediate charging and as with the Stratford-upon-Avon and Birmingham services, High Wycombe and Banbury are the obvious choice,

London Marylebone And Aylesbury Via High Wycombe

Consider.

  • The route is 43.5 miles
  • An out and back trip is 87 miles.
  • The route is probably short enough for the proposed Hitachi battery-electric train, to run the route without intermediate charging.
  • This service usually terminates in Platform 1 at Aylesbury station, where trains wait for up to thirteen minutes, which is more than enough time to fully-charge the train for return to Marylebone.
  • The train will also be fully-charged at Marylebone.

It looks that this route could be easily handled with charging at both ends of the route, but if there has been a charging error, the train can obviously make a pit-stop at High Wycombe to give the battery a top-up.

London Marylebone And Aylesbury Via Amersham

Consider.

  • The route is 39 miles
  • An out and back trip is 78 miles.
  • The route is probably short enough for the proposed Hitachi battery-electric train, to run the route without intermediate charging.
  • This service usually terminates in Platform 3 at Aylesbury station, where trains wait for up to twenty minutes, which is more than enough time to fully-charge the train for return to Marylebone.
  • The train will also be fully-charged at Marylebone.

It looks that this route could be easily handled with charging at both ends of the route, but if there has been a charging error, the train can obviously make a pit-stop at High Wycombe to give the battery a top-up.

London Marylebone And Aylesbury Vale Parkway Via Amersham

Consider.

  • The route is 41 miles
  • An out and back trip is 82 miles.
  • The route is probably short enough for the proposed Hitachi battery-electric train, to run the route without intermediate charging.
  • This service usually terminates in Platform 1 at Aylesbury Vale Parkway station, where trains wait for up to nine minutes, which is more than enough time to fully-charge the train for return to Marylebone.
  • The train will also be fully-charged at Marylebone.

It looks that this route could be easily handled with charging at both ends of the route, but if there has been a charging error, the train can obviously make a pit-stop at Aylesbury to give the battery a top-up.

Leamington Spa And Birmingham Moor Street

Consider.

  • The route is 23 miles
  • An out and back trip is 46 miles.
  • This service usually terminates in a bay platform at Birmingham Moor Street station, where trains wait for up to twenty minutes, which is more than enough time to fully-charge the train for return to Leamington Spa.

I am fairly sure, that this route could be run by trains charged at Bitmingham Moor Street station only.

New And Extended Services

These services are planned or have been mentioned as possibilities.

London Marylebone And Milton Keynes Via High Wycombe, Princes Risborough, Aylesbury And Aylesbury Vale Parkway

This is the new service that Chiltern will start running in the next few years.

Consider.

  • I estimate the distance between Aylesbury Vale Parkway and Bletchley, where 25 KVAC overhead electrification starts is 18 miles, with Milton Keynes a further three miles.
  • The distance between Marylebone and Bletchley via High Wycombe would be 63.5 miles.
  • The route is probably short enough for the proposed Hitachi battery-electric train, to run the route without intermediate charging.
  • Charging would normally be in Milton Keynes and Marylebone, with a certain amount of charging from the 25 KVAC between Bletchley and Milton Keynes.

It looks that this route could be handled with charging at both ends of the route, but if there has been a charging error, the train can obviously make a pit-stop at High Wycombe or Aylesbury to give the battery a top-up.

Birmingham Moor Street And Oxford

Consider.

  • Birmingham Moor Street station could have more South-facing bay platforms.
  • Birmingham Moor Street station is only a short walk from the new High Speed Two station at Birmingham Curzon Street.
  • Oxford station has two North-facing bay platforms.
  • Oxford station and Aynho Junction is only twenty miles and well within battery range, if High Wycombe and Banbury is electrified.
  • Banbury and Oxford currently takes 23 minutes.
  • Banbury and Birmingham Moor Street currently takes 44 minutes

It looks like a Birmingham Moor Street and Oxford service would take one hour and seven minutes.

London Marylebone And The Cowley Branch

This proposed service is probably about four to five miles further on from Oxford station.

There may be problems with how the track is laid out, but with a charging station at the end of the branch, I doubt that distance would be a problem.

Croxley Rail Link Proposal

I said this earlier.

With the demise of the Croxley Rail Link around Watford, Chiltern could be part of a revived solution.

The original plan died a long time ago, but could there be a simpler Chiltern-based solution?

  • Rebuild the railway between Croxley and Watford High Street stations.
  • Build new stations at Watford Vicarage Road and Cassiobridge.
  • A single track link would be more affordable could certainly handle two tph and possibly four.
  • Chiltern would run a two tph service between Watford Junction and Aylesbury stations.
  • The service would call at Watford High Street, Watford Vicarage Road, Cassiobridge, Croxley, Rickmansworth, Chorleywood, Chalfont & Latimer, Amersham, Great Missenden, Wendover and Stoke Mandeville.

I’m sure a more comprehensive scheme than the original one can be devised.

Important Stations

These are some of the more important stations and a few notes.

Aylesbury

As Chiltern develops the network in the next few years, these services could run to and/or through Aylesbury station.

  • One tph – London Marylebone and Aylesbury via High Wycombe
  • One tph – London Marylebone and Aylesbury via Amersham
  • One tph – London Marylebone and Aylesbury Vale Parkway via Amersham
  • One tph – London Marylebone and Milton Keynes via High Wycombe and Aylesbury Vale Parkway (new service)

I could also see a two tph service between Watford Junction and Aylesbury via Amersham.

Summing all this up means that two tph go via High Wycombe and four tph go via Amersham.

This Google Map shows Aylesbury station.

Note.

  1. Platforms are numbered 1 to 3 from South to North.
  2. Trains going South via High Wycombe call in Platforms 1 or 2.
  3. Trains going South via Amersham call in Platforms 2 and 3
  4. Trains going North call in Platforms 2 and 3.

These pictures show the station.

It is a spacious station, with step-free access and I feel that it could handle more services.

Banbury

I am sure that Banbury station, will be an important charging point for Chiltern’s battery-electric trains going North of Banbury.

This Google Map shows the layout of the recently-refurbished Banbury station.

Note.

  1. Platforms are numbered 1 to 4 from West to East.
  2. Trains going North call in Platforms 1 or 2.
  3. Trains going South call in Platforms 3 or 4.
  4. The Marylebone and London service usually turns back in Platform 4 after waiting there for over half-an-hour.
  5. Northbound Stratford-upon-Avon services generally use Platform 1, but most others generally use Playform 2.
  6. Southbound Stratford-upon-Avon services generally use Platform 4, but most others generally use Playform 3.

It looks to me, that Banbury station could handle the charging of trains as they pass through, as all of Chiltern’s services that serve destinations to the North of Banbury, stop at the station.

Hitachi are saying, that one of their proposed battery-electric trains needs ten minutes to be fully-charged.

So there may need to be some adjustment to the time-table to lengthen the stops at Banbury, to give ten minutes of charging time.

Alternatively, a few miles of electrification could be centred on Banbury, perhaps between Aynho Junction and Leamington Spa, which is a distance of twenty-six miles, which takes one of Chiltern’s trains around twenty-three minutes.

This would surely give enough time to fully-charge the batteries, but would also benefit CrossCountry, if they should go the battery-electric route.

I have followed the route between Aynho Junction and Leamington Spa in my helicopter and it would appear to be a fairly straight and uncomplicated route. I would say, it is about as difficult to electrify, as the Midland Main Line between Bedford and Kettering/Corby, which appears to have been one of Hetwork Rail’s better electrification projects, which should be delivered on time and has been installed without too much disruption to trains and passengers.

High Wycombe

It looks to me, that High Wycombe station will be an important charging point for Chiltern’s battery-electric trains going North to Oxford and Banbury.

Unlike Banbury, High Wycombe has not seen many changes over the years.

This Google Map shows High Wycombe station.

Note.

  1. Platforms are numbered 1 to 3 from South to North.
  2. Platform 1 is a bay platform that faces London.
  3. Platform 2 is the Westbound platform.
  4. Platform 3 is the Eastbound platform.
  5. High Wycombe has five tph in both directions, with an upgrade to six tph possible, after two tph run to the Cowley Branch.

The frequency of the trains through High Wycombe station could probably be handled by a Fast Charging system, but it would be tight to fit all current five services into an hour. It would appear to preclude any extra services going through High Wycombe, as there just isn’t enough time in an hour.

For this reason, I think that High Wycombe station needs full electrification, so that all passing trains can top up their batteries.

This gives the interesting possibility, that a train leaving High Wycombe for London with a full battery, would probably have enough charge in the battery to travel the 28 miles to London Marylebone and return. The train could always have a top-up at Marylebone.

So how far would the electrfication, through High Wycombe run?

Given that for operational reasons, it is probably best that pantographs are raised and lowered in stations, it is probably best if the various routes were electrified to the next station.

  • The Chiltern Main Line route would be electrified as far as Banbury station, where all trains stop. The distance would be 41 miles.
  • The Oxford route would be electrified as far as Bicester Village station, where all trains stop. The distance would be less than two miles from the Chiltern Main Line
  • The Aylesbury route would be electrified as far as Princes Risborough station, where all trains stop. This would be included in the Chiltern Main Line electrification.

It looks to me, that just 43 miles of double-track electrification would enable Hitachi’s proposed battery-electric trains to reach all parts of the Chiltern network.

Distances of the various destinations from the electrification are as follows.

  • Birmingham Moor Street – 43 miles
  • Birmingham Snow Hill – 43 miles
  • Kidderminster – 63 miles
  • Marylebone – 28 miles
  • Milton Keynes – 27 miles
  • Oxford – 38 miles
  • Oxford – Cowley – 43 miles
  • Stratford-upon-Avon  35 miles

Only Kidderminster could be tricky, but not if the Snow Hill Lines are electrified through Birmingham.

Electrification of the Chiltern Main Line between High Wycombe and Banbury with a number of Fast Charging systems in selected stations, would be my preferred option of enabling Hitachi’s proposed battery-electric trains to work the Chiltern network.

These pictures show High Wycombe station.

It does appear that the bridge at the Western end of the station my need to be modified, so that overhead wires can be threaded underneath.

Conclusion

Quite unexpectedly, I am pleasantly surprised.

Chiltern Railways’ current network can be run by Hitachi’s proposed battery-electric AT-300 trains.

  • Fast charging systems will be needed at Aylesbury, Aylesbury Vale Parkway, Banbury, Birmingham Moor Street, Birmingham Snow Hill, Gerrards Cross, High Wycombe, Kidderminster, Marylebone, Milton Keynes and Oxford.
  • Banbury and High Wycombe will need to be able to top-up trains as they pass through.
  • No large scale electrification will be needed. Although any new electrification will be greatly accepted!

As I indicated earlier, I would electrify the core part of the Chiltern Main Line route between High Wycombe and Banbury.

It would probably be a good idea to electrify a few miles at the Southern end of the line, where it runs into Marylebone station.

  • Marylebone and Harrow-on-the-Hill.
  • Marylebone and West Ruislip
  • Old Oak Common and West Ruislip.

I would use third-rail electrification to be compatible with London Underground and because of the automatic connection and disconnection.

But most surprisingly, there are already generous turnround times at most terminal stations, which give enough time to charge the trains.

It’s almost, as if Chiltern are preparing for battery-electric trains.

 

 

 

 

 

 

February 21, 2020 Posted by | Transport | , , , , , , , , , , , , , | 2 Comments

Could High Speed Two Trains Serve Chester?

This may seem a slightly outrageous proposal to run High Speed Two trains to Chester.

  • The city is a major tourist destination.
  • Despite its closeness to Crewe it is a major rail hub, with services across Wales to Cardiff, Holyhead and Llandudno and along the border between England and Wales to Shrewsbury and Newport.
  • Merseyrail serves the city and the station can be considered to be part of Liverpool’s extensive commuting area. This service is likely to be more reliable and faster with the delivery of new Class 777 trains.
  • For parts of Merseyside, travelling to London or Manchester Airport, is easier via Chester than Liverpool Lime Street or Liverpool South Parkway.

If the promoters of High Speed Two are serious about creating a railway for the whole country, then I feel that running trains direct to and from Chester could be very beneficial for the towns and cities, that can be served by the current network at Chester.

Current And Possible Timings

Currently, trains take two minutes over two hours between Euston and Chester.

When Avanti West Coast introduces the new Hitachi AT-300 trains on the route, the following times will be possible.

  • Euston to Crewe via West Coast Main Line – 90 minutes – Fastest Pendelino
  • Crewe and Chester – 24 minutes – Current timing

This would give a time of one hour and 54 minutes, which is a saving of 8 minutes. But a lot of carbon would not be emitted.

I estimate, that with High Speed Two Phase 2a completed, the following timings will be possible.

  • Euston to Crewe via HS2 – 55 minutes – HS2 website
  • Crewe and Chester – 24 minutes – Current timing

This would give a time of one hour and 19 minutes, which is a saving of 43 minutes.

Infrastructure Needed

There will need to be some infrastructure changes.

Platform Lengthening At Chester Station

The station would probably be served by two-hundred metre long classic-compatible, which might need some platform lengthening.

This Google Map shows the station.

It looks to me, that there is plenty of space.

Will Chester And Crewe Be Electrified?

We know little about the capabilities of the trains proposed by the various manufacturers.

But, I wouldn’t be surprised that one or more of the proposals use batteries for one of the following purposes.

  • Regenerate braking.
  • Emergency power.
  • Range extension for up to perhaps sixty miles.

As Chester and Crewe stations are only twenty-one miles apart with no intermediate stations, which will be run at an average speed of only 52 mph I don’t think it will be impossible to extend the service to Chester on battery power.

If electrification is required I wrote about it in Hitachi Trains For Avanti.

As it is only just over twenty miles, I don’t think it will be the most challenging of projects, although there does seem to be a lot of bridges.

Electrification would also allow Avanti West Coast’s Hitachi trains to run on electricity to Chester.

What About Holyhead?

Holyhead could become a more important destination in the next few years.

It is probably the best alternative to avoid flying and driving between Great Britain and the Island of Ireland.

And who can accurately predict, what effect Brexit and thinking about global warming will have?

I have a feeling that after electrification to Chester, using on-board energy storage could be used West of Chester.

It is very difficult to predict battery ranges in the future, but I can see a two hundred metre long classic-compatible train on High Speed Two being able to reach Holyhead on battery power, with or without some limited extra electrification.

I estimate that with some track improvements, that it will be possible to travel between Euston and Holyhead in around three hours.

Conclusion

It looks to me, that when High Speed Two, think about adding extra destinations, Chester could be on the list.

I also suspect that if it can be run without full electrification, Euston and Holyhead could be a valuable route for Avanti West Coast.

January 21, 2020 Posted by | Transport | , , , , , , , , , | 4 Comments

Hitachi Trains For Avanti

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

The Bi-Mode Trains

Some more details of the thirteen bi-mode and ten electric Hitachi AT 300 trains are given.

Engine Size and Batteries

This is an extract from the article.

Hitachi told Modern Railways it was unable to confirm the rating of the diesel engines on the bi-modes, but said these would be replaceable by batteries in future if specified.

I do wonder if my speculation in Will Future Hitachi AT-300 Trains Have MTU Hybrid PowerPacks? is possible.

After all, why do all the hard work to develop a hybrid drive system, when your engine supplier has done it for you?

Would Avanti West Coast need a train that will do 125 mph on diesel?

The only place, they will be able to run at 125 mph or even higher will be on the West Coast Main Line, where they will be running under electric power from the pantograph.

If I were designing a bi-mode for 90 mph on diesel and 125 mph on electric, I would have batteries on the train for the following purposes.

  • Handle regenerative braking.
  • Provide hotel power in stations or when stationery.
  • Provide an acceleration boost, if required, when running on diesel.
  • Provide emergency power, if the wires go down in electric mode.

I’m sure MTU could work out a suitable size of diesel engine and batteries in an MTU PowerPack, that would meet the required performance.

Or maybe a smaller diesel could be used. An LNER Class 800 train has 1680 kW of installed power to maintain 125 mph. But the Great Western Railway versions have 2100 kW or twenty-five percent more, as their routes are more challenging with steeper gradients.

For the less challenging routes at a maximum of 90 mph between Crewe, Chester, Shrewsbury and North Wales, I wonder what level of power is needed.

A very rough estimate based on the speed required could put the power requirement as low as 1200-1500 kW.

As the diesel engines are only electrical generators, it would not effect the ability of the train to do 125 mph between Crewe and London.

There looks to be a virtuous circle at work here.

  • Lower maximum speed on diesel means smaller diesel engines.
  • Smaller diesel engines means lighter diesel engines and less fuel to carry.
  • Less weight to accelerate needs less installed power.
  • Less power probably means a more affordable train, that uses less diesel.

It looks to me, that Hitachi have designed a train, that will work Avanti West Coast’s routes efficiently.

The Asymmetric Bi-Mode Train

It looks to me that the bi-mode train  that Avanti West Coast are buying has very different performance depending on the power source and signalling

  • 90 mph or perhaps up to 100 mph on diesel.
  • 125 mph on electric power.with current signalling.
  • Up to 140 mph on electric power with in-cab digital signalling.

This compares with the current Class 221 trains, which can do 125 mph on all tracks, with a high enough operating speed.

The new trains’ different performance on diesel and electric power means they could be called asymmetric bi-modes.

Surely, creating an asymmetric bi-mode train, with on-board power; battery, diesel or hydrogen, sized to the route, means less weight, greater efficiency, less cost and in the case of diesel, higher carbon efficiency.

Carbon Emissions

Does the improvement in powertrain efficiency with smaller engines running the train at slower speeds help to explain this statement from the Modern Railways article?

Significant emissions reduction are promised from the elimination of diesel operation on electrified sections as currently seen with the Voyagers, with an expected reduction in CO2 emissions across the franchise of around two-thirds.

That is a large reduction, which is why I feel, that efficiency and batteries must play a part.

Battery-Electric Conversion

In my quote earlier from the Modern Railways article, I said this.

These (the diesel engines) would be replaceable by batteries in future if specified.

In Thoughts On The Next Generation Of Hitachi High Speed Trains, I looked at routes that could be run by a battery-electric version of Hitachi AT-300 trains.

I first estimated how far an AT-300 train could go on batteries.

How far will an AT-300 train go on battery power?

  • I don’t think it is unreasonable to be able to have 150 kWh of batteries per car, especially if the train only has one diesel engine, rather than the current three in a five-car train.
  • I feel with better aerodynamics and other improvements based on experience with the current trains, that an energy consumption of 2.5 kWh per vehicle mile is possible, as compared to the 3.5 kWh per vehicle mile of the current trains.

Doing the calculation gives a range of sixty miles for an AT-300 train with batteries.

As train efficiency improves and batteries are able to store more energy for a given volume, this range can only get better.

I then said this about routes that will be part of Avanti West Coast’s network.

With a range of sixty miles on batteries, the following is possible.

  • Chester, Gobowen, Shrewsbury And Wrexham Central stations could be reached on battery power from the nearest electrification.
  • Charging would only be needed at Shrewsbury to ensure a return to Crewe.

Gobowen is probably at the limit of battery range, so was it chosen as a destination for this reason.

The original post was based on trains running faster than the 90 mph that is the maximum possible on the lines without electrification, so my sixty mile battery range could be an underestimate.

These distances should be noted.

  • Crewe and Chester – 21 miles
  • Chester and Shrewsbury – 42 miles
  • Chester and Llandudno – 47 miles
  • Chester and Holyhead – 84 miles

Could electrification between Crewe and Chester make it possible for Avanti West Coast’s new trains to go all the way between Chester and Holyhead on battery power in a few years?

I feel that trains with a sixty mile battery range would make operations easier for Avanti West Coast.

Eighty miles would almost get them all the way to Holyhead, where they could recharge!

Rlectrification Between Chester And Crewe

I feel that this twenty-odd miles of electrification could be key to enabling battery-electric trains for the routes to the West of Chester to Shrewsbury, Llandudno and Holyhead.

How difficult would it be to electrify between Chester and Crewe?

  • It is not a long distance to electrify.
  • There doesn’t appear to be difficult viaducts or cuttings.
  • It is electrified at Crewe, so power is not a problem.
  • There are no intermediate stations.

But there does seem to be a very large number of bridges. I counted forty-four overbridges and six underbridges. At least some of the bridges are new and appear to have been built with the correct clearance.

Perhaps it would be simpler to develop fast charging for the trains and install it at Chester station.

Conclusion On The Bi-Mode Trains

It appears to me that Avanti West Coast, Hitachi and Rock Rail, who are financing the trains have done a very good job in devising the specification for a fleet of trains that will offer a good service and gradually move towards being able to deliver that service in a carbon-free manner.

  • The initial bi-mode trains will give a big improvement in performance and reduction in emission on the current Voyagers, as they will be able to make use of the existing electrification between Crewe and London.
  • The trains could be designed for 125 mph on electric power and only 90-100 mph on diesel, as no route requires over 100 mph on diesel. This must save operating costs and reduce carbon emissions.
  • They could use MTU Hybrid PowerPacks instead of conventional diesel engines to further reduce emissions and save energy
  • It also appears that Hitachi might be able to convert the trains to battery operation in a few years.
  • The only new infrastructure would be a few charging stations for the batteries and possible electrification between Chester and Crewe.

I don’t think Avanti West Coast’s ambition of a two-thirds reduction in CO2 is unreasonable and feel it could even be exceeded.

Other Routes For Asymetric Bi-Mode Trains

I like the concept of an asymetric bi-mode train, where the train has the following performance.

  • Up to 100 mph on battery, diesel or hydrogen.
  • Up to 100 mph on electrified slower-speed lines.
  • 125 mph on electrified high-speed lines, with current signalling.
  • Up to 140 mph on electrified high-speed lines, with in-cab digital signalling.

I am very sure that Hitachi can now tailor an AT-300 train to a particular company’s needs. Certainly, in the case of Avanti West Coast, this seems to have happened, when Avanti West Coast, Hitachi, Network Rail and Rock Rail had some serious negotiation.

LNER At Leeds

As an example consider the rumoured splitting and joining of trains at Leeds to provide direct services between London and Bradford, Harrogate, Huddersfield, Ilkley, Skipton and other places, that I wrote about in Dancing Azumas At Leeds.

In the related post, I gave some possible destinations.

  • Bradford – 13 miles – 25 minutes – Electrified
  • Harrogate – 18 miles – 30 minutes
  • Huddersfield – 17 miles – 35 minutes
  • Hull – 20 miles – 60 minutes
  • Ilkley – 16 miles – 26 minutes – Electrified
  • Skipton – 26 miles – 43 minutes – Electrified
  • York – 25 miles – 30 minutes

Note, that the extended services would have the following characteristics.

They would be run by one five-car train.

  1. Services to Bradford, Ilkley and Skipton would be electric
  2. Electrification is planned from Leeds to Huddersfield and York, so these services could be electric in a few years.
  3. All other services would need independent power; battery, diesel or hydrogen to and from Leeds.
  4. Two trains would join at Leeds and run fast to London on the electrified line.
  5. Services would probably have a frequency of six trains per day, which works out at a around a train every two hours and makes London and back very possible in a day.
  6. They would stop at most intermediate stations to boost services to and from Leeds and give a direct service to and from London.

As there are thirty trains per day between London and Leeds in each direction, there are a lot of possible services that could be provided.

Currently, LNER are only serving Harrogate via Leeds.

  • LNER are using either a nine-car train or a pair of five-car trains.
  • The trains reverse in Platforms 6 or 8 at Leeds, both of which can handle full-length trains.
  • LNER allow for a generous time for the reverse, which would allow the required splitting and joining.
  • All trains going to Harrogate are Class 800 bi-mode trains.

Note that the Class 800 trains are capable of 125 mph on diesel, whereas the average speed between Harrogate and Leeds is just 35 mph. Obviously, some of this slow speed is due to the route, but surely a train with a maximum speed of 90-100 mph, with an appropriate total amount of diesel power, would be the following.

  • Lighter in weight.
  • More efficient.
  • Emit less pollution.
  • Still capable of high speed on electrified lines.
  • Bi-mode and electric versions could run in pairs between Leeds and London.

LNER would probably save on track access charges and diesel fuel.

LNER To Other Places

Could LNER split and join in a similar way to other places?

  • Doncaster for Hull and Sheffield
  • Edinburgh for Aberdeen and Inverness
  • Newark for Lincoln and Nottingham
  • York for Middlesbrough and Scarborough.

It should be noted that many of the extended routes are quite short, so I suspect some train diagrams will be arranged, so that trains are only filled up with diesel overnight,

GWR

Great Western Railway are another First Group company and I’m sure some of their routes could benefit, from similar planning to that of Avanti West Coast.

Splitting and joining might take place at Reading, Swindon, Bristol and Swansea.

South Western Railway

South Western Railway will need to replace the three-car Class 159 trains to Exeter, that generally work in pairs with a total number of around 400 seats, in the next few years.

These could be replaced with a fleet of third-rail Hitachi trains of appropriate length.

  • Seven cars sating 420 passengers?
  • They would remove diesel trains from Waterloo station.
  • All South Western Railway Trains running between Waterloo and Basingstoke would be 100 mph trains.

I wonder, if in-cab digital signalling on the route, would increase the capacity? It is sorely needed!

Southeastern

Southeastern need bi-mode trains to run the promised service to Hastings.

  • Trains would need a third-rail capability.
  • Trains need to be capable of 140 mph for High Speed One.
  • Trains need to be able to travel the 25 miles between Ashford International and Ore stations.
  • Trains would preferably be battery-electric for working into St. Pancras International station.

Would the trains be made up from six twenty-metre cars, like the Class 395 trains?

The Simple All-Electric Train

The Modern Railways article, also says this about the ten all-electric AT-300 trains for Birmingham, Blackpool and Liverpool services.

The electric trains will be fully reliant on the overhead wire, with no diesel auxiliary engines or batteries.

It strikes me as strange, that Hitachi are throwing out one of their design criteria, which is the ability of the train to rescue itself, when the overhead wires fail.

In Do Class 800/801/802 Trains Use Batteries For Regenerative Braking?, I published this extract from this document on the Hitachi Rail web site.

The system can select the appropriate power source from either the main transformer or the GUs. Also, the size and weight of the system were minimized by designing the power supply converter to be able to work with both power sources. To ensure that the Class 800 and 801 are able to adapt to future changes in operating practices, they both have the same traction system and the rolling stock can be operated as either class by simply adding or removing GUs. On the Class 800, which is intended to run on both electrified and non-electrified track, each traction system has its own GU. On the other hand, the Class 801 is designed only for electrified lines and has one or two GUs depending on the length of the trainset (one GU for trainsets of five to nine cars, two GUs for trainsets of 10 to 12 cars). These GUs supply emergency traction power and auxiliary power in the event of a power outage on the catenary, and as an auxiliary power supply on non-electrified lines where the Class 801 is in service and pulled by a locomotive. This allows the Class 801 to operate on lines it would otherwise not be able to use and provides a backup in the event of a catenary power outage or other problem on the ground systems as well as non-electrified routes in loco-hauled mode.

This is a very comprehensive power system, with a backup in case of power or catenary failure.

So why does it look like Hitachi are throwing that capability out on the trains for Avanti West Coast.

There are several possibilities.

  • The reliability of the trains and the overhead wire is such, that the ability of a train to rescue itself is not needed.
  • The auxiliary generator has never been used for rescuing the train.
  • The West Coast Main Line is well-provided with Thunderbird locomotives for rescuing Pendelinos, as these trains have no auxiliary generator or batteries.
  • Removal of the excess weight of the auxiliary engine and batteries, enables the Hitachi AT-300 trains to match the performance of the Pendelinos, when they are using tilt.

Obviously, Hitachi have a lot of train performance statistics, from the what must be around a hundred trains in service.

It looks like Hitachi are creating a lightweight all-electric train, that has the performance or better of a Pendelino, that it achieves without using tilt.

  • No tilt means less weight and more interior space.
  • No auxiliary generator or batteries means less weight.
  • Wikipedia indicates, that Hitachi coaches are around 41 tonnes and Pendelino coaches are perhaps up to ten tonnes heavier.
  • Less weight means fast acceleration and deceleration.
  • Less weight means less electricity generated under regenerative braking.
  • Pendelinos use regenerative braking, through the catenary.
  • Will the new Hitachi trains do the same instead of the complex system they now use?

If the train fails and needs to be rescued, it uses the same Thunderbird system, that the Pendelinos use when they fail.

Will The New Hitachi Trains Be Less Costly To Run?

These trains will be lighter in weight than the Pendelinos and will not require the track to allow tilting.

Does this mean, that Avanti West Coast will pay lower track access charges for their new trains?

They should also pay less on a particular trip for the electricity, as the lighter trains will need less electricity to accelerate them to line speed.

Are Avanti West Coast Going To Keep The Fleets Apart?

Under a heading of Only South Of Preston, the Modern Railways article says this.

Unlike the current West Coast fleet, the Hitachi trains will not be able to tilt. Bid Director Caroline Donaldson told Modern Railways this will be compensated for by their improved acceleration and deceleration characteristics and that the operator is also working with Network Rail to look at opportunities to improve the linespeed for non-tilting trains.

The routes on which the Hitachi trains will operate have been chosen with the lack of tilt capability in mind, with this having the greatest impact north of Preston, where only Class 390 Pendelinos, which continue to make use of their tilting capability will be used.

Avanti West Coast have said that the Hitachi trains will run from London to Birmingham, Blackpool and Liverpool.

All of these places are on fully-electrified branches running West from the West Coast Main Line, so it looks like there will be separation.

Will The New Hitachi Trains Be Faster To Birmingham, Blackpool And Liverpool?

Using data from Real Time Trains, I find the following data about the current services.

  • Birmingham and Coventry is 19 miles and takes 20 minutes at an average speed of 57 mph
  • Blackpool and Preston is 16.5 miles and takes 21 minutes at an average speed of 47 mph
  • Liverpool and Runcorn is 3.15 miles and takes 15 minutes at an average speed of 52 mph

All the final legs when approaching the terminus seem to be at similar speeds, so I doubt there are much savings to be made away from the West Coast Main Line.

Most savings will be on the West Coast Main Line, where hopefully modern in-cab digital signalling will allow faster running at up to the design speed of both the Hitachi and Pendelino trains of 140 mph.

As an illustration of what might be possible, London to Liverpool takes two hours and thirteen minutes.

The distance is 203 miles, which means that including stops the average speed is 91.6 mph.

If the average speed could be raised to 100 mph, this would mean a journey time of two hours and two minutes.

As much of the journey between London and Liverpool is spent at 125 mph, which is the limit set by the signalling, raising that to 135 mph could bring substantial benefits.

To achieve the journey in two hours would require an overall average speed of 101.5 mph.

As the proportion of track on which faster speeds, than the current 125 mph increase over the next few years, I can see Hitachi’s lightweight all-electric expresses breaking the two hour barrier between London and Liverpool.

What About The Pendelinos And Digital Signalling?

The January 2020 Edition of Modern Railways also has an article entitled Pendolino Refurb Planned.

These improvements are mentioned.

  • Better standard class seats! (Hallelujah!)
  • Refreshed First Class.
  • Revamped shop.

Nothing is mentioned about any preparation for the installation of the equipment to enable faster running using digital in-cab signalling, when it is installed on the West Coast Main Line.

Surely, the trains will be updated to be ready to use digital signalling, as soon as they can.

Just as the new Hitachi trains will be able to take advantage of the digital signalling, when it is installed, the Pendellinos will be able to as well.

Looking at London and Glasgow, the distance is 400 miles and it takes four hours and thirty minutes.

This is an average speed of 89 mph, which compares well with the 91.6 mph between London and Liverpool.

Raise the average speed to 100 mph with the installation of digital in-cab signalling on the route, that will allow running at over 125 mph for long sections and the journey time will be around four hours.

This is a table of average speeds and journey times.

  • 100 mph – four hours
  • 105 mph – three hours and forty-eight minutes
  • 110 mph – three hours and thirty-eight minutes
  • 115 mph – three hours and twenty-eight minutes
  • 120 mph – three hours and twenty minutes
  • 125 mph – three hours and twelve minutes
  • 130 mph – three hours and four minutes

I think that I’m still young enough at 72 to be able to see Pendelinos running regularly between London and Glasgow in three hours twenty minutes.

The paragraph is from the Wikipedia entry for the Advanced Passenger Train.

The APT is acknowledged as a milestone in the development of the current generation of tilting high speed trains. 25 years later on an upgraded infrastructure the Class 390 Pendolinos now match the APT’s scheduled timings. The London to Glasgow route by APT (1980/81 timetable) was 4hrs 10min, the same time as the fastest Pendolino timing (December 2008 timetable). In 2006, on a one off non-stop run for charity, a Pendolino completed the Glasgow to London journey in 3hrs 55min, whereas the APT completed the opposite London to Glasgow journey in 3hrs 52min in 1984.

I think it’s a case of give the Pendelinos the modern digital in-cab signalling they need and let them see what they can do.

It is also possible to give an estimate for a possible time to and from Manchester.

An average speed of 120 mph on the route would deliver a time of under one hour and forty minutes.

Is it possible? I suspect someone is working on it!

Conclusion

I certainly think, that Avanti West Coast, Hitachi and Network Rail, have been seriously thinking how to maximise capacity and speed on the West Coast Main Line.

I also think, that they have an ultimate objective to make Avanti West Coast an operator, that only uses diesel fuel in an emergency.

 

 

January 1, 2020 Posted by | Transport | , , , , , , , , , , , , , , , , | 6 Comments