The Anonymous Widower

A Selection Of Train Noses

I have put together a selection of pictures of train noses.

They are in order of introduction into service.

Class 43 Locomotive

The nose of a Class 43 locomotive was designed by Sir Kenneth Grange.

Various articles on the Internet, say that he thought British Rail’s original design was ugly and that he used the wind tunnel at Imperial College to produce one of the world’s most recognised train noses.

  • He tipped the lab technician a fiver for help in using the tunnel
  • Pilkington came had developed large armoured glass windows, which allowed the locomotives window for two crew.
  • He suggested that British Rail removed the buffers. Did that improve the aerodynamics, with the chisel nose shown in the pictures?

The fiver must be one of the best spent, in the history of train design.

In How Much Power Is Needed To Run A Train At 125 mph?, I did a simple calculation using these assumptions.

  • To cruise at 125 mph needs both engines running flat out producing 3,400 kW.
  • Two locomotives and eight Mark 3 carriages are a ten-car InterCity 125 train.

This means that the train needs 2.83 kWh per vehicle mile.

Class 91 Locomotive

These pictures show the nose of a Class 91 locomotive.

Note, the Class 43 locomotive for comparison and that the Driving Van Trailers have an identical body shell.

It does seem to me, that looking closely at both locomotives and the driving van trailers, that the Class 43s  look to have a smoother and more aerodynamic shape.

Class 800/801/802 Train

These pictures show the nose of a Class 800 train.

In How Much Power Is Needed To Run A Train At 125 mph?, I did a simple calculation to find out the energy consumption of a Class 801 train.

I have found this on this page on the RailUKForums web site.

A 130m Electric IEP Unit on a journey from Kings Cross to Newcastle under the conditions defined in Annex B shall consume no more than 4600kWh.

This is a Class 801 train.

  • It has five cars.
  • Kings Cross to Newcastle is 268.6 miles.
  • Most of this journey will be at 125 mph.
  • The trains have regenerative braking.
  • I don’t know how many stops are included

This gives a usage figure of 3.42 kWh per vehicle mile.

It is a surprising answer, as it could be a higher energy consumption, than that of the InterCity 125.

I should say that I don’t fully trust my calculations, but I’m fairly sure that the energy use of both an Intercity 125 and a Class 801 train are in the region of 3 kWh per vehicle mile.

Class 717 Train

Aerodynamically, the Class 700, 707 and 717 trains have the same front.

But they do seem to be rather upright!

Class 710 Train

This group of pictures show a Class 710 train.

Could these Aventra trains have been designed around improved aerodynamics?

  • They certainly have a more-raked windscreen than the Class 717 train.
  • The cab may be narrower than the major part of the train.
  • The headlights and windscreen seem to be fared into the cab, just as Colin Chapman and other car designers would have done.
  • There seems to be sculpting of the side of the nose, to promote better laminar flow around the cab. Does this cut turbulence and the energy needed to power the train?
  • Bombardier make aircraft and must have some good aerodynamicists and access to wind tunnels big enough for a large scale model of an Aventra cab.

If you get up close to the cab, as I did at Gospel Oak station, it seems to me that Bombardier have taken great care to create a cab, that is a compromise between efficient aerodynamics and good visibility for the driver.

Class 345 Train

These pictures shows the cab of a Class 345 train.

The two Aventras seem to be very similar.

Class 195 And Class 331 Trains

CAF’s Class 195 and Class 331 trains appear to have identical noses.

They seem to be more upright than the Aventras.

Class 755 Train

Class 755 trains are Stadler’s 100 mph bi-mode trains.

It is surprising how they seem to follow similar designs to Bombardier’s Aventras.

  • The recessed windscreen.
  • The large air intake at the front.

I can’t wait to get a picture of a Class 755 train alongside one of Greater Anglia’s new Class 720 trains, which are Aventras.

 

 

 

 

 

October 14, 2019 Posted by | Transport, Uncategorized | , , , , , , , , | Leave a comment

Travel Industry Confirms Rail ‘Renaissance’ In Europe

The title of this post is the same as that of this article on Railway Gazette.

This is the introductory paragraph.

Assertions that long-distance rail services in Europe are rapidly becoming more popular as passengers eschew flying for environmental reasons were amply confirmed at the Rail Innovation Forum organised by Amadeus at its head office near Nice on October 9-10.

The article also gives these points.

  • Swiss Federal Railways are reporting a 26 % year-on-year increase in passengers for the first quarter of 2019 for night trains.
  • Sweden is reporting a 12 % increase in rail traffic and a 4 % drop in air traffic.
  • Flight bookings across Scandinavia are down by 10 %.
  • German long-distance rail travel is rising.

This all seems good news for carbon emissions.

October 14, 2019 Posted by | Transport | , , | Leave a comment

Rumours Grow Over Future Of HS2

The title of this post is the same as that of this article on Railnews.

This is the first paragraph.

The future of HS2 appears to be increasingly in doubt, as reports suggest that the forthcoming Oakervee Review will axe Phase 2b between the West Midlands and Yorkshire and possibly cancel the project entirely.

The article also says this about the first phase of the project.

Another possibility is that Phase 1 between London and Birmingham could be built more cheaply by lowering the maximum speed from the presently-planned 250km/h. Such a reduction would reduce the new line’s capacity and lengthen journey times but still ease the pressure on the West Coast Main Line, where paths are in short supply.

There are three suggestions in these two paragraphs and before I discuss them, I’ll detail the various phases of the project as they are current proposed.

The Phases Of High Speed Two

High Speed Two will be two phases with the second phase split into two.

  • Phase 1 – London and the West Midlands
  • Phase 2a – West Midlands and Crewe
  • Phase 2b – Crewe and Manchester and West Midlands and Leeds

The plan improves links between London and several major cities in the Midlands and North.

Northern Powerhouse Rail

I am a great believer in holistic design and in the economies of doing several similar projects together or in a well-defined sequence, that delivers benefits in a stream.

For that reason, I believe that the equally-important Northern Powerhouse Rail should be designed in conjunction with High Speed Two, to achieve the following objectives.

  • A better railway, that connects more towns and cities.
  • A phased delivery of benefits.
  • Possible cost savings.

This report on the Transport for the North web site which is entitled At A Glance – Northern Powerhouse Rail, advocates a much better approach.

  • High Speed Two would go from Crewe to Hull via Warrington, Manchester Airport, Manchester Piccadilly, Huddersfield, Bradford and Leeds.
  • Northern Powerhouse Rail would go from Liverpool to Hull via Warrington, Manchester Airport, Manchester Piccadilly, Huddersfield, Bradford and Leeds.
  • There would be a double junction at High Legh between Liverpool and Manchester, that connects the two routes.
  • London and Liverpool services would use the Western end of Northern Powerhouse Rail from High Legh.
  • There would be improvements East of Leeds to connect to Sheffield and the East Coast Main Line.

This map shows the high speed railways between Crewe, Liverpool, Manchester and Warrington.

I discussed, what has been proposed by Transport of the North in Changes Signalled For HS2 Route In North.

Cutting High Speed Two To An Affordable Budget

I’ll take the three suggestions in the Rail News article.

Suggestion One – Cancel The Project

This is actually the second suggestion, but I think the article kills it in the second paragraph, that I quoted, when it says that High Speed Two is needed to ease pressure on the West Coast Main Line.

Cancellation would probably be a vote loser and a big stick with which to beat Boris, if he brought forward any environmental proposals.

I doubt cancellation will happen, unless we get someone like Nigel Farage as Prime Minister.

Suggestion Two – Cancel Phase 2b Between The West Midlands And Yorkshire

This clip of a map from the Transport for the North report shows a schematic of the rail links to the East of Manchester.

Northern Powerhouse Rail would offer a lot of improvements, which are shown in purple.

There are also these projects that will improve trains to and from Yorkshire.

  • Northern Powerhouse Rail between Liverpool and Hull via Manchester Airport, Manchester Piccadilly, Huddersfield, Bradford and Leeds.
  • A possible connection between Northern Powerhouse Rail and High Speed Two at High Legh.
  • Midland Main Line upgrade with 125 mph bi-mode trains between London and Sheffield.
  • 140 mph running on the East Coast Main Line between London and Doncaster and onward to Bradford, Hull, Leeds and York.

I’ll add a few more flesh to the points.

High Speed Two To Hull

If High Speed Two connects to Northern Powerhouse Rail at High Legh it will join everything together.

  • High Speed Two trains would run between London and Hull via Birmingham, Crewe, Manchester Airport, Manchester Piccadilly, Huddersfield, Bradford and Leeds.
  • Very expensive infrastructure would be shared between High Speed Two and Northern Powerhouse Rail.
  • Leeds and Manchester would be just twenty minutes apart, with trains from both lines on the same tracks.
  • Hull station has the space to handle the trains.

Combining the two routes should save billions.

Midland Main Line To Sheffield, Rotherham, Barnsley, Wakefield And Leeds

This is already ptoposed for the Midland Main Line.

  • New stations will be built at Rotherham and Barnsley.
  • Four fast trains per hour between Sheffield and Leeds can be delivered.
  • 125 mph bi-mode trains to Yorkshire via the East Midlands.

But what about the following?

  • Could the Erewash Valley Line be used instead of a new High Speed Two line between the East Midlands and Sheffield?
  • Could the Midland Main Line be electrified and upgraded to 140 mph running like the East Coast Main Line?

Similar connectivity to that of High Speed Two can be created at a lower cost.

Cancellation of the Eastern Leg of Phase 2b would mean there would be no improved link between the West and East Midlands.

Perhaps, the Eastern leg of High Speed Two, would run only to the proposed East Midlands Hub station at Toton.

Increasing Capacity On The East Coast Main Line

In Thoughts On A 140 mph East Coast Main Line Between London And Doncaster, I did a crude calculation to see how many extra trains could be run between London and Doncaster on a digitally signalled 140 mph East Coast Main Line.

This was my conclusion.

If something similar to what I have proposed is possible, it looks like as many as an extra seven tph can be accommodated between Kings Cross and the North.

That is certainly worth having.

Extra trains could be run between Kings Cross and Bradford, Hull, Leeds, Nottingham and Sheffield.

Estimated timings would be eighty minutes to Doncaster and under two hours to Leeds.

Suggestion Three – Reduce Speed In Phase 1

There is always a tendency for project promoters to make sure their project is the biggest and the best.

There will be an optimum speed for a London and Birmingham high speed line, which balances benefits, costs, noise and disturbance. One politician’s optimum will also be very different to another’s.

Such parameters like operating speed and capacity must be chosen with care.

Conclusion

I believe, that we need the capacity of both High Speed Two and Northern Powerhouse Rail  to move passengers and freight.

So we should design them together and with other improvements like the Midland Main Line and the East Coast Main Line.

 

 

October 13, 2019 Posted by | Transport | , , , , , | Leave a comment

Thoughts On A 140 mph East Coast Main Line Between London And Doncaster

The East Coast Main Line is being upgraded with digital signalling to allow Azumas and other high speed trains to run at 140 mph for most of the route, starting with the section between London and Doncaster.

There is also a string of projects all along the line to improve operating speed, cut out slow trains and improve junctions and crossings.

Finsbury Park And Stevenage

In The New Fifth Platform At Stevenage Station – 11th October 2019, I talked about the improvements at the Northern end of the Hertford Loop Line, which I believe could allow the fast lines between Stevenage and Finsbury Park stations to be exclusively used by digitally-signalled 140 mph trains.

Currently, these passenger services run between Stevenage and Finsbury Park in a typical hour.

  • LNER – Edinburgh – 2 trains – #
  • LNER – Leeds – 2 trains – #
  • LNER – Newark or York – 1 train – #
  • Great Northern – Cambridge and Ely expresses – 2 trains
  • Thameslink – Cambridge stopping trains – 2 trains.
  • Thameslink – Peterborough and Horsham – 2 trains
  • Thameslink – Cambridge and Brighton – 1 train
  • Hull Trains – 7 trains per day. – #
  • Grand Central – 9 trains per day. – #
  • East Coast Trains – 5 trains per day. – From 2021. – #

The services can be divided into four groups.

140 mph Non-Stop Expresses

Services marked with a hash (#) will probably  be run by versions of Hitachi Class 80x trains or similar, which will be capable of 140 mph running under digital signalling, between Finsbury Park and Stevenage stations.

The twenty-one services run by Hull Trains, Grand Central and East Coast Trains, will probably add up to less than two trains per hour (tph).

This means that there is a need to run seven tph between Finsbury Park and Stevenage.

Kings Cross and Cambridge/Ely Expresses

Currently, these go non-stop between Kings Cross and Cambridge on the fast lines.

Surely, these should be 140 mph-capable trains, so they fit in with all the fast expresses.

After all, Oxford is served by 140 mph-capable trains, so why not Cambridge?

Cambridge Stopping Trains

The half-hourly Cambridge stopping trains have to stop in Welwyn North station,

  • They will have to use the fast lines between Welwyn Garden City and Knebworth stations, as there are only two tracks.
  • Currently, trains are timetabled to take nine minutes to pass through the double-track section.
  • North and South of the double-track section, the services will use the slow lines, as they call at several stations

But these services still leave forty-five minutes in every hour, in which to fit the 140 mph services through the restricting double track section.

These services will be replaced by a two tph Thameslink service between Cambridge and Maidstone East stations.

Thameslink Cross-London Services

The two Thamelink Cross-London services between Peterborough and Horsham and Cambridge and Brighton, go non-stop between Finsbury Park and Stevenage stations.

So could these three services use the Hertford Loop Line?

  • North of Stevenage, they use the slow lines.
  • South of Finsbury Park, they use the slow lines to access the Canal Tunnels for the Thameslink platforms at  St. Pancras.
  • Would calls at perhaps Alexandra Palace, Enfield Chase and Hertford North be worthwhile.

The only disadvantage would be that the route would be a few minutes slower, than using the main line.

Trains Terminating At Kings Cross Station

In each hour, it appears that the following trains will terminate at Kings Cross station.

  • Seven 140 mph expresses, that are going North of Hitchin.
  • Two 140 mph expresses, that are going to Cambridge/Ely.
  • Two stopping services, that are going to Cambridge.

The station has nine platforms in the main station and three in the suburban station at the side.

The Wikipedia entry for Kings Cross station, has a section entitled Future Remodelling, where this is said.

In January 2018, it was announced that half the station would close for 3 months from January to March 2020 for remodelling work to the station and its approach, expected to cost £237 million. This includes rationalisation of the tracks, reopening the third tunnel to the approach of the station and closure of platform 10.

The remodelling must allow an increase in numbers of trains terminating at Kings Cross, especially as the problems in the throat should be sorted.

These points should be noted about the High Speed Two platforms at Euston.

  • There are eleven platforms.
  • They can handle eighteen tph.
  • The trains will be up to four hundred metres long.

Considering that a nine-car Class 801 train is less than 240 metres long, I wouldn’t be surprised to find that Kings Cross can handle eighteen tph.

Does that mean that Kings Cross station can accommodate another seven services?

Would The East Coast Main Line Be Able To Handle Eighteen 140 mph Expresses An Hour?

If Kings Cross station can handle eighteen tph, then the two fast lines of the East Coast Main Line must be able to handle this number of trains.

  • The two fast lines of the East Coast Main Line between London and Doncaster could be considered a smaller and slower version of High Speed Two.
  • High Speed Two has a capacity of eighteen tph.
  • High Speed Two trains are almost twice as fast as those on the East Coast Main Line.
  • Signalling on the East Coast Main Line will have to deal with slower trains, where there are less than four tracks, as over the Digswell viaduct and through Welwyn North station.

This is just the sort of challenge, for which digital signalling has been created.

Spare Capacity South Of Hitchin

Suppose in a couple of years the following has been done.

  • Kings Cross station has been remodelled.
  • The Hertford Loop Line has been updated for more and faster trains.
  • Thameslink services can use the Hertford Loop Line.
  • Thameslink is running the full 24 tph service.
  • The Cambridge stopper has been changed into a Thameslink service between Cambridge and Maidstone East.
  • Cambridge and Brighton has become a two tph service.
  • Kings Cross and Cambridge/Ely expresses are run by 140 mph-capable trains.

This would mean the following frequencies, to the South of Hitchin.

  • Seven tph – 140 mph-capable expresses between Kings Cross and the North, with some stopping at Stevenage.
  • Two tph – 140 mph-capable expresses between Kings Cross and Cambridge/Ely.
  • Two tph – 100 mph Thameslink services between Cambridge and Brighton routed via the Hertford Loop Line.
  • Two tph – 100 mph Thameslink services between Peterborough and Horsham routed via the Hertford Loop Line.
  • Two tph – 100 mph Thameslink services between Cambridge and Maidstone East routed via the East Coast Main Line. The slow line will be used except over the Digswell viaduct and through Welwyn North station.

Note.

  1. There will also be a two tph Thameslink service in the Peak between Welwyn Garden City and Sevenoaks. This can be discounted as it avoids the tricky bits of the East Coast Main Line.
  2. Thameslink services to Cambridge and Peterborough would be routed via the Hertford Loop ine, at a frequency of four tph.
  3. All Thameslink services would be routed via the Canal Tunnels and St. Pancras station.
  4. Kings Cross would only be handling 140 mph-capable trains, at a frequency of nine tph.

If the capacity of the 140 mph fast lines is the same as the similar High Speed Two, then eighteen tph should be possible.

Planned trains could be as follows.

  • Seven tph – 140 mph-capable expresses between Kings Cross and the North, with some stopping at Stevenage.
  • Two tph – 140 mph-capable expresses between Kings Cross and Cambridge/Ely.
  • Two tph – Thameslink service between Cambridge and Maidstone East.

Does that mean another seven tph can be accommodated between Kings Cross and Hitchin?

As only nine tph would be going into Kings Cross, the station should have no difficulty handling that number of trains. It could possibly handle another nine tph.

Spare Capacity North Of Hitchin

At Hitchin, the following services wukk go to and from Cambridge.

  • Two tph – 140 mph-capable expresses between Kings Cross and Cambridge/Ely.
  • Two tph – Thameslink service between Cambridge and Maidstone East.

The other Thameslink services can be ignored, as they use the slow lines between Stevenage and Hitchin and the Hertford Loop Line, so they are out of the way of the 140 mph services.

Does that mean another ten tph can be accommodated between Hitchin and the North?

What Limits The Number Of Extra Trains?

My crude estimation appears to show the following.

  • Kings Cross station may be able to handle another nine tph.
  • Between Kings Cross and Hitchin may be able to handle another seven trains.
  • North of Hitchin may be able to handle another ten trains.

It would appear that the double track section over the Digswell viaduct and through Welwyn North station, limits the capacity of the whole route.

Estimated Timings

In Changes Signalled For HS2 Route In North, I stated this.

Currently, the fastest non-stop trains between London and Doncaster take a few minutes over ninety minutes. With 140 mph trains, I think the following times are easily possible.

  • London and Doncaster – 80 minutes
  • London and Hull  – A few minutes over two hours, running via Selby.
  • London and Leeds – A few minutes less than two hours, running on the Classic route.

For comparison High Speed Two is quoting 88 minutes for London Euston and Leeds, via Birmingham and East Midlands Hub.

There could be a race to Leeds between High speed Two and Classic services on the East Coast Main Line.

Speculation On Extra Services

It would not be right, if I didn’t have a small speculation.

Cambridge Services

Consider.

  • Oxford and Cambridge both have two main routes to and from London.
  • Both have a fast service running at a frequency of two tph.
  • Both have other quality, but slower services.

It could be argued that extra fast services are run to Cambridge, but this would use up two valuable paths over the Digswell viaduct.

Perhaps it would be better to copy Greater Anglia’s solution for London and Norwich services and order a high quality purpose-designed train for the route.

  • 140 mph-capability
  • Digitally-signalled
  • 240 metres long
  • High quality interior

There would need to be some platform lengthening between Cambridge and Kings Lynn.

Leeds Services

Leeds currently has two tph from Kings Cross and Manchester Piccadilly has three tph from Euston.

Leeds also has a daily direct service to Aberdeen.

I suspect that there could be a sorting out at Leeds, which would mean it gets a third service from London.

Conclusion

If something similar to what I have proposed is possible, it looks like as many as an extra seven tph can be accommodated between Kings Cross and the North.

 

 

 

 

October 13, 2019 Posted by | Transport | , , , , , | 4 Comments

Worcestershire Parkway Station Is Now On The Map

This article on the BBC is entitled Worcester’s New Railway Station’s Set To Open In December.

This Google Map showsWorcestershire Parkway station, at the place, where the Cotswold and Cross Country lines cross.

Services will probably start to call at the timetable change of December 15th, 2019

Judging by the bands of car parking shown in this map, they are expecting a sizeable number of passengers.

I just tried to book a ticket to the station and it is not in the on-line ticketing system yet as a destination, although it does show up as a stop on these journeys.

  • CrossCountry – Nottingham and Cardiff – Hourly
  • GWR – Paddington and Worcestor, Great Malvern and Hereford.- Hourly

Two other hourly CrossCountry services also pass through.

October 13, 2019 Posted by | Transport | , , , | Leave a comment

PM Backs Clean Air Law

The title of this post is the front page headline on today’s copy of The Times.

This is the sub-heading of the article on The Times web site.

PM promises binding targets to reduce pollution and praises Times campaign

In a separate box in the paper, which is entitled Our Manifesto, this is said.

  • A new Clean Air Act to confer a legal right to unjpolluted air for everyone in the UK.
  • A ban on new diesel and petrol cars from 2030 and cuts to green car grants to be traversed.
  • Temporary traffic bans outside schools at drop-off and pick-up times.
  • The extension of pre-2016 diesel and pre-2006 petrol pay zones to more cities.
  • Pollution monitors in every postcode to empower people to take action.

How far will Boris Johnson go to meet the manifesto of The Times in the Queen’s Speech on Monday?

October 12, 2019 Posted by | Transport | , , , | 5 Comments

£1 Goes Three Times Further When Driving Electric Cars

The title of this post is the same as that of this article in The Times.

The figures the article use come from a respected car review site called Parkers.

Miles per pound (mpp) figures quoted in The Times article include.

  • Kia e-Niro First Edition – 33.1 mpp
  • Renault Zoe – 33.1 mpp
  • Honda Civic Saloon 1.6 i-DTEC – 10.8 mpp
  • Ford Focus 1.5 EcoBlue – 10.8 mpp

You could argue that The Times is biased because of its clean air campaign, but it does say the examples are the most efficient.

They also say this about owning an electric car, with an mpp figure like the example.

With the average motorist driving about 7,150 miles per year, they would spend £216 over 12 months if the models were charged from home.

If I was still driving and living wwhere I did in deepest Suffolk, I suspect that I would be tempted to buy one!

But then The Times article also says that electric car sales are increasing rapidly.

 

October 12, 2019 Posted by | Transport | | 2 Comments

The New Fifth Platform At Stevenage Station – 11th October 2019

Stevenage station is getting a fifth platform for the termination of Great Northern services to and from Moorgate station.

  • This platform will be on the down side of the station.
  • A single platform should be able to turnback at least four trains per hour (tph) and possibly as many as six tph, that have used the Hertford Loop Line to come North.
  • Wikipedia says that this will increase the capacity and freqiency on the East Coast Main Line and the Hertford Loop Line.

These are a few pictures of the works.

This page on the Network Rail we site is entitled Stevenage Turnback and it gives more details.

  • improved resilience and reliability is claimed.
  • Two kilometres of new track and a set of points will be added.
  • The embankment on the West side of the track will be strengthened.
  • The signalling will be improved.
  • Two bridges will be modified.

Everything should be completed by Summer 2020, so that the four tph from Moorgate to Stevenage can be resumed.

These are my observations.

  • The work on the West side of the East Coast Main Line seems to be to a very high standard.
  • There seems to be enough space for a possible double-track or a passing loop between the new platform and the Hertford Loop Line in future.
  • The embankment on the West side of the track is being strengthened.
  • Will trains still be able to come from the Hertford Loop and continue North?

It certainly appears to me to be built to allow expansion in the future.

What Frequency Will The New Platform Be Able To Handle?

There are several platforms in the UK, where four tph are turned back.

It looks to me, that there is no reason, why this frequency couldn’t be handled in the new platform at Stevenage.

Especially, as there appears to be at least one crossover between Stevenage and Watton-at-Stone stations.

But could it handle more trains?

The Hertford Loop Line is scheduled to be updated with digital signalling. So in the future, this may be possible, if the need is there!

The Great Northern Metro

It should also be noted that in 2016, Govia Thameslink Railway published plans for a Great Northern Metro. They seemed to have dropped this idea, but I discussed the plan in The Great Northern Metro.

This is a brief summary of those proposals.

  • Fourteen tph in the High Peak.
  • In the Off Peak, there would be six tph to Hertford North, four tph to Welwyn Garden City and two tph to Stevenage.
  • Sunday services are four tph to both branches and two tph to Stevenage.

I do wonder what is the capacity of the Hertford Loop Line.

  • It has grade-separated junctions at both ends of the route.
  • It is double-track throughout.
  • It has 25 KVAC overhead electrification.
  • It has a 75 mph operating speed.
  • It has turnback platforms at Gordon Hill and Hertford North stations.
  • It is planned to equip the route with digital signalling.
  • It is planned to upgrade the power supply.
  • It probably handles a maximum of about eight tph, which can include a couple of freight trains.

I suspect that this route can be improved to handle more and longer trains., at a higher speed than now!

Could Thameslink Use The Hertford Loop Line?

Could some Thameslink services to Cambridge and Peterborough use the Hertford Loop Line, rather than the East Coast Main Line?

Consider.

  • The Hertford Loop Line will have an increased speed limit.
  • Digital signalling is to be introduced on the route.
  • Trains might only stop at Hertford North, Enfield Chase and Alexandra Palace.
  • Some current Thameslink services between London and Cambridge and Peterborough, run non-stop between Finsbury Park and Stevenage.

Diverting some services to the Hertford Loop Line would have the following advantages.

  • It would relrease capacity on the East Coast Main Line.
  • It would reduce the number of trains using the two-track section over the Digswell viaduct.
  • It could give Hertford a direct link to Cambridge and Peterborough.

The disadvantage would be that services would be a few minutes slower.

140 mph Running On The East Coast Main Line

Under Planned Or Proposed Developments the Wikipedia entry for the EastCoast Main Line says this.

Most of the length of the ECML is capable of 140 mph subject to certain infrastructure upgrades. Below is the foreword of the Greengauge 21 report:

“Upgrading the East Coast Main Line to 140 mph operation as a high priority alongside HS2 and to be delivered without delay. Newcastle London timings across a shorter route could closely match those achievable by HS2..

The section then goes on to describe a lot of improvements with the aim of running between London and Edinburgh in four hours.

The project has a code name of L2E4. There is more information at this page on the Network Rail web site.

South of Peterborough, there are infrastructure and rolling stock limitations, that will stop the Hitachi Class 800 trains running at 140 mph.

  • Extra tracks are needed between Huntington and Woodwalton.
  • There is a double-track section over the Digswell viaduct, through Welwyn North station and the Welwyn tunnels.
  • Thameslink’s Class 700 trains that run services to Cambridge and Peterborough are only capable of 100 mph.
  • Great Northern’s Class 387 trains, that run services to Cambridge and Kings Lynn are only capable of 110 mph.
  • Hull Trains and Grand Central run services with trains that are only capable of 125 mph.

I will deal with these in order.

Extra Tracks Between Huntingdon and Woodwalton

The Wikipedia entry for the East Coast Main Line says this about this project.

Re-quadrupling of the route between Huntingdon and Woodwalton (HW4T) which was rationalised in the 1980s during electrification (part of the ECML Connectivity programme). This also involves the closure and diversion of a level crossing at Abbots Ripton which was approved in November 2017.

This improvement, which will mean continuous quadruple tracks between Stevenage and Peterborough will mean.

  • A few minutes for all trains will be saved.
  • Slower stopping services between London and Peterborough, will be kept out of the way of the 140 mph expresses.

What sort of stink would there be, if a motorway closed in the 1980s was now being rebuilt, to provide what existed forty years ago?

But British Rail closed or simplified infrastructure, without properly looking at the consequences, mainly to please or under the direction of the Treasury.

Double-Track Over Digwell Viaduct And Through Welwyn North Station

This is one of the worst rail bottlenecks in the UK.

To make matters worse, a service between Kings Cross and Cambridge with a frequency of two tph stops at the station.

It means a fast train would have to do a pit stop at speeds nor far off those of a racing car.

I think we can say, that adding extra tracks through the area would be extremely difficult, if not impossible.

But consider the trains that pass Welwyn North every hour.

  • LNER – 5 trains
  • Thameslink – 3 trains
  • Cambridge and Ely expresses – 2 trains
  • Cambridge stopping trains – 2 trains.
  • Hull Trains – 7 trains per day.
  • Grand Central – 9 trains per day.

If it is assumed that the Hull Trains and Grand Central add up to one train per hour, it looks like about thirteen tph go through the double track section.

If another couple of trains are added for luck, this means that the double track section will be handling a train every four minutes.

The double-track section is less than five miles long, so a 140 mph train will run between the quadruple track sections at Welwyn Garden City and Knebworth stations  in jut over two minutes.

Currently, the trains that stop at Welwyn North station are timetabled to take nine minutes between stops at Welwyn Garden City and Knebworth stations.

Effectively, the stop at Welwyn North station blocks the double-track section for nine minutes..

This means that there are two twenty-one minute periods in an hour where the other trains can pass through.

So how can you maximise the use of these available periods?

  • The trains must arrive precisely at the right time – Digital signalling with automatic train control is probably the best way to ensure this.
  • All through trains must be running as near to 140 mph as possible.
  • Diverting of slower trains to alternative routes should be examined.
  • The stopping train should be able to execute a stop in the shortest possible time.

I believe that if the timetable is efficient, that as many as twenty tph could be handled.

Most would go through the double-track section at 140 mph!

I must add a point about safety.

Trains currently go through these platforms at Welwyn North station at a maximum speed of 125 mph.

Will more trains going through at a faster speed, necessitate the addition of a passenger protection system at the station?

Thameslink’s Class 700 Trains

I have heard East Midlands drivers moan about Class 700 trains on the Midland Main Line, as they are too slow at 100 mph to mix it with the 125 mph expresses.

It looks like the Treasury got the specification wrong again! Surprise! Surprise! Even a 110 mph capability, as is often specified for outer suburban trains would be better.

But these trains run non-stop between Finsbury Park and Stevenage stations, so at 100-110 mph, they will be a bit of a hindrance to the trains running at 140 mph. It would be like granny and grandpa in a Morris Minor in the fast lane of a motorway!

If there is the capacity, then perhaps the Thameslink trains should run on an upgraded Hertfprd Loop Line along with the 100 mph Class 717 trains.

Once they rejoined the East Coast Main Line, they would take to the upgraded slow lines to go Cambridge and Peterborough.

Great Northern’s Class 387 Trains

Cambridge is one of the UK’s world-class cities and it deserves a top quality service from London.

The current Class 387 trains are only 110 mph trains, so wouldn’t fit well with the herds of 140 mph trains running to and from London.

It would probably be best in the long term to replace these trains with 140 mph trains designed for the route.

After all if Oxford can have a commuter service to London using Class 802 trains, then surely these are good enough for Cambridge?

In Call For ETCS On King’s Lynn Route, I discuss the possibility of digital signalling on the London and Kings Lynn route via Cambridge, based on reports in Rail Magazine.

If the Cambridge Line from Hitchin were to be upgraded for faster running, then London and Cambridge times might be reduced significantly.

Hull Trains And Grand Central

Hull Trains and Grand Central will want to participate in the 140 mph action between London and Doncaster.

Hull Trains have already made their move and have leased a fleet of Class 802 trains, which will shortly enter service.

Another Open Access operator; East Coast Trains has already ordered five Hitachi 140 mph trains.

Will Grand Central replace their fleet of Class 180 trains?

They will either buy 140 mph trains, cease trading or give up!

The other operators won’t want slow trains on the fast lines.

How Many 140 mph Trains Will Be Able To Run Between London And Doncaster?

I finish this section with a question.

I answered this question and a few others in Thoughts On A 140 mph East Coast Main Line Between London And Doncaster.

This was my conclusion.

If something similar to what I have proposed is possible, it looks like as many as an extra seven tph can be accommodated between Kings Cross and the North.

That is certainly worth having.

Conclusion

The new platform at Stevenage station is a well-designed sub-project that enables  the Hertford Loop Line to be used to its full capability.

  • Up to four tph will be able to run between Moorgate and Stevenage stations.
  • The redesigned junction at Stevenage will allow services like Thameslink to use the Hertford Loop Line rather than run at 100 mph on the East Coast Main Line.

It is an important sub-project in turning the East Coast Main Line into a high speed line with a high proportion of 140 mph running.

 

 

 

 

 

October 11, 2019 Posted by | Transport | , , , , , , , | 1 Comment

NightJet Expands To Amsterdam And Brussels

The title of this post is the same as that of this article on the Railway Gazette.

The Amsterdam Service

This is said about the NightJet service to Amsterdam.

  • It will run daily.
  • It will run between Amsterdam and Vienna via Munich.
  • Service will start in December 2020.
  • Journey time will be fourteen hours.
  • The Dutch government is supporting the service with €6.7million.

The Dutch Minister for Infrastructure is also quoted as saying that International rail traffic to and from The Netherlands has increased by 13% this summer and that they are targeting intra-European journeys of up to six hours.

Given that it has recently been announced that the Customs and Immigration problems on the Amsterdam to London services will soon be resolved, I can shhe the following happening in the next couple of years.

  • Tourists taking Eurostar from London to Amsterdam and then exploring the City before taking a NightJet to Vienna, after a night or two in Amsterdam.
  • More tourists exploring Europe by rail.
  • Eiurostar needing to run four daily services between London and Amsterdam.

I feel the Dutch Government are backing an obvious winner.

The Brussels Service

This is said about the NightJet service to Brussels.

  • ÖBB will trial a service to Brussels from January 2020
  • It will run between Brussels and Vienna via Dusseldorf and Innsbruck.
  • It will initially run two days per week.

The aim would be to go daily, at the same time as the start of the Amsterdam service.

Everything said about the Amsterdam service would apply to the Brussels service, but would it be used by European politicians going to and from their home countries.

Conclusion

These two services will open up Central Europe to civilised comfortable train travel for passengers starting in the Benelux countries, Northern France and South-East England.

Vienna is a hub for other NightJet services going further East, so after a day or two the options to travel further are many and varied.

Will we ever see a London and Vienna sleeper?

We might!

But consider!

  • The last Eurostar from London to Brussels leaves at 18:04 and arrives at arrives at 21:05
  • The last |Eurostar from London to Paris leaves at 20:01 and arrives at 23:17
  • You can get a good meal in the two top classes; Standard Premier and Business Premier.

It may be a better idea to run a later service from London to Brussels to connect with the NightJet

 

 

October 11, 2019 Posted by | Transport | , , , , | 2 Comments

Thoughts On The Aerodynamics Of A Class 91 Locomotive

The Class 91 locomotive is unique in that it the only UK locomotive that has a pointed and a blunt end.

The Wikipedia entry has external and internal pictures of both cabs, which are both fully functional.

The speeds of the locomotive are given as follows.

  • Design – 140 mph
  • Service – 125 mph
  • Record – 161.7 mph
  • Running blunt end first – 110 mph

The aerodynamic drag of the train is determined by several factors.

  • The quality of the aerodynamic design.
  • The cross-sectional area of the train.
  • The square of the speed.
  • The power available.

The maximum speed on a level track, will probably be determined when the power available balances the aerodynamic force on the front of the train.

But with a train or an aircraft, you wouldn’t run it on the limit, but at a safe lower service speed, where all the forces were calm and smooth.

If you compare normal and blunt end first running, the following can be said.

  • The cross sectional area is the same.
  • The available power is the same.
  • Power = DragCoefficient * Speed*Speed, where the DragCoefficient is a rough scientifically-incorrect coefficient.

So I can formulate this equation.

DragCoefficientNormal * 125*125 = DragCoefficientBlunt * 110*110

Solving this equation shows that the drag coefficient running blunt end first is twenty-nine percent higher, than when running normally.

Looking at the front of a Class 91 locomotive and comparing it with its predecessor the Class 43 locomotive, it has all the subtlety of a brick.

The design is a disgrace.

Conclusion

This crude analysis shows the importance of good aerodynamic design, in all vehicles from bicycles to fifty tonne trucks.

 

If

 

 

October 11, 2019 Posted by | Transport | , | 1 Comment