The Anonymous Widower

Introduction Of New Trains To East Anglia Will Be Like Moving ‘From Mid-Table To Champions League’ Says Greater Anglia Boss

The title of this post is the same as that of this article on the East Anglian Daily Times.

It is a rare detailed article on how new trains are introduced to a network.

This is a quote from Jamie Burles of Greater Anglia in the article.

On some lines there will be a huge quality uplift – going from a 40-year old single carriage diesel train to a minimum three-carriage state-of-the-art bi-mode train with air conditioning, plug sockets and broadband wi-fi.

East Anglia is being subjected to one of most radical rail upgrades in the history of railways in the UK.

January 1, 2019 Posted by | Transport | , , , | 2 Comments

How Will Greater Anglia/London Overground Use The Third Track On The West Anglia Main Line?

This morning as I often do, I took the 11:00 train between Stratford and Enfield Lock stations.

I like to have a look at progress on STAR, which involves the following.

  • A five and a half kilometre third track to the East of the current two tracks of the West Anglia Main Line between Lea Bridge and Angel Road stations.
  • A third platform and station improvements at Tottenham Hale station.
  • A third platform, removal of a level crossing and complete rebuilding of Northumberland Park station.
  • Building of a completely new three-platform station at Meridian Water to replace the current inadequate Angel Road station.

This Google Map shows the location of Meridian Water station with respect to Tesco Extra and IKEA in Glover Drive.

You can just see the concrete foundations of the station and its platforms alongside the West Anglia Main Line to the West of the Tesco Extra.

In Meridian Water Station – 14th June 2018, I show pictures of the station just over two months ago.

There has been steady and worthwhile progess since.

  • Meridian Water station now has platforms under construction.
  • Northumberland Park station looks like it could be ready before Spurs’ new stadium.
  • The lift towers for the footbridge at Tottenham Hale station are being erected.
  • I estimate about seventy percent of the third track has been laid.
  • All the electrification gantries seem to have been erected and there are even some overhead wires.

The target for finishing the works is said to be May 2019 and I suspect that is achievable.

Use Of The Third Track

It certainly looks like the third track will be ready, so how will it be used?

The Northern End

At the Northern end, the third track appears to finish in a bay platform at Meridian Water station.

Once Angel Road station is closed and reduced to rubble, there would be plenty of space to add a junction, so that trains going South towards Stratford, could use the third track.

This would surely ease operation of the West Anglia Main Line.

Meridian Water Station

Meridian Water station appears to be being built as a three-platform station with provision for a fourth.

From various drawings and notes on the Internet it looks like there will be two platforms on the West Anglia Main Line and a separate bay or through platform to the East.

This map from carto.metro.free.fr shows the relationship of Angel oad and Meridian Water station.

The dotted line on the map is the third track.

I took these pictures from a slow train through the station.

It looks very much like a through platform is being created.

I feel that access to this platform will be in two ways.

  • From the North via a junction with the Southbound track of the West Anglia Main Line. This junction could be to the North the current Angel Road station.
  • From the South using the new third track.

This would mean that no trains will have to cross the West Anglia Main Line using a flat junction.

I don’t believe that trains can run bi-directionally on the third track, as there is not enough time in an hour for four trains to shuttle between Lea Bridge and Meridian Water.

So that means all services calling at Meridian Water will go further up the Lea Valley to turn back.

Using The Third Platform At Tottenham Hale Station

I think it is likely that the current two platforms will be used as follows.

  • Platform 2 – Northbound trains
  • Platform 1 – Southbound trains to Liverpool Street

It would be logical that the new third platform would handle Southbound trains to Stratford.

As Platform 1 and the new platform share an island, passengers will have a step-free cross-platform  interchange, if they need to go to the alternative destination.

The following journey times should be noted.

  • Tottenham Hale to Stratford currently takes 14 minutes
  • Tottenham Hale to Liverpool Street currently takes between 14 and 17 minutes
  • Liverpool Street to Stratford will take eight minutes on Crossrail

I suspect a lot of passengers will change to a direct train.

It could also mean that an ideal service would see the same frequency of trains at both platforms.

The Southern End

At the Southern end, the third track joins the West Anglia Main Line going towards Stratford, but there is also a crossover to allow trains coming from Stratford to use the third track.

Is The Third Track Going To Be Bi-Directional?

Loops like this third track are often signalled to be bi-directional, to ease operation. But as I said earlier, I think the third track is too long to operate in that way all the time with passenger services.

What Will Be The Operating Speed Of The Third Track?

I have watched the third track being constructed and it is totally new.

  • All bridges have been replaced with new structures.
  • The track is fully electrified.
  • There appear to be no junctions, except at the two ends.

Everything certainly looks professional to my untrained eye.

The operating speed will probably be determined by the time set for the driver to take the train between stations on the line.

But the track has surely been designed to minimise the time between Meridian Water and Stratford.

Could The Third Track Be Extended Northwards?

The length of the third track is 5.5 km.

Could the third track be extended to the North?

If Crossrail 2 is built, there will be a need to make the route four tracks.

  • Two fast tracks for the expresses between London, Stansted and Cambridge.
  • Two slow tracks for Crossrail 2 as far as the terninus at Broxbourne.

These are my observations

  • Looking from both a train and on Google Map, it appears that it will be a tight fit to squeeze in two tracks.
  • There is the serious problems of the two level crossings at Brimsdown and Enfield Lock stations.
  • Waltham Cross station seems very tight too.

But I do think, that with a clever redesign at the three troublesome stations, that a third track, but not necessarily a fourth can be squeezed in  as far as North as Broxbourne, which would be another 11.2 miles.

Although in places, like these pictures taken just South of Tottenham Hale station show, there may be plenty of space for two tracks.

I suspect that to put in the fourth track will mean that the bridge at Ferry Lane will need to be rebuilt.

But it does appear that in building the third track, the builders are making sue there is space for a fourth track to be added in a few years.

Currently, How Many Calls Are There At Each Station?

These figures are calculated from the current timetable.

Lea Bridge

  • Two trains per hour (tph) – Stratford to Bishop’s Stortford

Two tph stop in both platforms.

Tottenham Hale

  • Two tph – Liverpool Street to Hertford East
  • One tph – Liverpool Street to Cambridge
  • One tph – Liverpool Street to Cambridge North
  • Four tph – Liverpool Street to Stansted Airport
  • Two tph – Stratford to Bishop’s Stortford

Ten tph stop in both platforms.

Northumberland Park

  • Two tph – Stratford to Bishop’s Stortford

Two tph stop in both platforms.

In addition, eight tph pass through both platforms without stopping.

Meridian Water

  • Two tph – Stratford to Bishop’s Stortford

Two tph stop in both platforms.

In addition, eight tph pass through both platforms without stopping.

Ponders End

  • Two tph – Liverpool Street to Hertford East

Two tph stop in both platforms.

In addition, eight tph pass through both platforms without stopping.

Brimsdown

  • Two tph – Liverpool Street to Hertford East

Two tph stop in both platforms.

In addition, eight tph pass through both platforms without stopping.

Enfield Lock

  • Two tph – Liverpool Street to Hertford East
  • One tph – Stratford to Bishop’s Stortford

Three tph stop in both platforms.

In addition, seven tph pass through both platforms without stopping.

Waltham Cross

  • Two tph – Liverpool Street to Hertford East
  • Two tph – Stratford to Bishop’s Stortford

Four tph stop in both platforms.

In addition, six tph pass through both platforms without stopping.

Cheshunt

  • Two tph – Liverpool Street to Hertford East
  • One tph – Liverpool Street to Cambridge
  • One tph – Liverpool Street to Cambridge North
  • Two tph – Stratford to Bishop’s Stortford

Six tph stop in both platforms.

In addition, four tph pass through both platforms without stopping.

Broxbourne

  • Two tph – Liverpool Street to Hertford East
  • One tph – Liverpool Street to Cambridge
  • One tph – Liverpool Street to Cambridge North
  • Two tph – Stratford to Bishop’s Stortford

Six tph stop in both platforms.

In addition, four tph pass through both platforms without stopping.

Harlow Town

  • One tph – Liverpool Street to Cambridge
  • One tph – Liverpool Street to Cambridge North
  • Two tph – Liverpool Street to Stansted
  • Two tph – Stratford to Bishop’s Stortford

Six tph stop in both platforms.

In addition, two tph pass through both platforms without stopping.

Bishop’s Stortford

  • One tph – Liverpool Street to Cambridge
  • One tph – Liverpool Street to Cambridge North
  • Two tph – Liverpool Street to Stansted
  • Two tph – Stratford to Bishop’s Stortford

Four tph stop in both platforms.

Two tph would terminate at the station.

In addition, two tph pass through both platforms without stopping.

A Summary Of Current Services

This is summary of stops at the selected stations.

  • Lea Bridge – 2 tph
  • Tottenham Hale – 10 tph
  • Northumberland Park – 2 tph
  • Meridian Water – 2 tph
  • Ponders End – 2 tph
  • Brimsdown – 2 tph
  • Enfield Lock – 3 tph
  • Waltham Cross – 4 tph
  • Cheshunt – 6 tph
  • Broxbourne – 6 tph
  • Harlow Town – 6 tph
  • Bishop’s Stortford – 6 tph

Note.

  1. To say the least service is a bit patchy, with some stations getting a much better service than others.
  2. London Overround, Merseyrail and others feel that a service of four tph is highly desirable and attracts passengers.

The service definitely needs improvement.

STAR Services

It is certainly intended that four tph, will be run between Stratford and Meridian Water stations calling at Lea Bridge, Tottenham Hale and Northumberland Park stations.

Current Services

Currently, this service is provided at a frequency of two tph by Greater Anglia, who extend the service to Bishop’s Strortford station.

There are various ways that this could be increased to four tph

Possible Northern Terminals

As I said earlier to avoid train-slowing flat junctions, STAR services must terminate North of Meridian Water station.

I think there are these possibilities.

  • Bishop’s Stortford, which currently handles two tph in the bay platform 3.
  • Broxbourne which is a large station with 8 platforms and has been earmarked as the terminal for Crossrail 2.
  • Hertford East has platform space, but there may not be the capacity for the trains on the Hertford East Branch.

Passenger numbers will drive the choice, but I suspect all three terminals have their merits.

In the following sub-sections I’ll look at each terminus.

Two Extra Trains To Bishop’s Stortford

I will assume these services will call at the same stations as the current two trains.

This is summary of stops at the selected stations.

  • Lea Bridge – 4 tph
  • Tottenham Hale – 12 tph
  • Northumberland Park – 4 tph
  • Meridian Water – 4 tph
  • Ponders End – 2 tph
  • Brimsdown – 2 tph
  • Enfield Lock – 4 tph
  • Waltham Cross – 8 tph
  • Cheshunt – 8 tph
  • Broxbourne – 8 tph
  • Harlow Town – 8 tph
  • Bishop’s Stortford – 8 tph

Note.

  1. Enfield Lock now has the preferred four tph.
  2. Ponders End and Brimsdown probably need more services.
  3. Are there too many services at Harlow Town and Bishop’s Stortford?

But generally, it is a better distribution than now!

Two Extra Trains To Broxbourne Or Hertford East

I will assume these services will call at the same stations as the current two trains, that run between Stratford and Bishop’s Stortford.

This is summary of stops at the selected stations, which will be the same for both destinations.

  • Lea Bridge – 4 tph
  • Tottenham Hale – 12 tph
  • Northumberland Park – 4 tph
  • Meridian Water – 4 tph
  • Ponders End – 2 tph
  • Brimsdown – 2 tph
  • Enfield Lock – 4 tph
  • Waltham Cross – 8 tph
  • Cheshunt – 8 tph
  • Broxbourne – 8 tph

Note.

  1. Enfield Lock now has the preferred four tph.
  2. Ponders End and Brimsdown probably need more services.
  3. There will be no increase in frequencies North of Broxbourne.

Operational needs and passenger numbers will decide if these are better destinations.

Use Of The High Meads Loop At Stratford

The High Meads loop under the Eastfield Shopping Centre was designed to turn trains.

This map from carto.metro.free.fr shows the loop.

On the map it is the horeshoe-shaped double track shown in black.

  • , It goes through Platforms 11 and 12 in Stratford station.
  • Currently, Platform 11 is used exclusively as a terminal for the two tph between Stratford and Bishop’s Stortford.
  • Currently, Platform 12 is not used and the track is used to take trains to and from the Orient Way sidings
  • Both ends of the loop join together just to the South of the Orient Way sidings and Lea Bridge station.
  • In the past it has been used to turn Stansted Expresses, which used Platform 12 according to the signs still in place.
  • I believe it would be possible to build a platform on the loop to serve Stratford International station and the Northern part of the Olympic Park.

In my view it is wasted fully-working infrastructure.

The Wirral Line Loop Under Liverpool

The most important rail loop in the UK is the loop of the Wirral Line under Central Liverpool.

  • The loop is single-track with three single-platform stations
  • This loop handles fourteen tph.
  • The loop is built for full-size trains.
  • Trains take eight minutes to go round the loop from Liverpool James Street station and fourteen minutes from Birkenhead Hamilton Square station on the other side of the Mersey.

It was built in the early 1970s and I’m sure the designers of the High Meads Loop were influenced strongly by the track layout in Liverpool.

The Wirral Line Loop showcases the major examples of this type of track layout.

  • The driver just keeps driving and doesn’t have to change ends.
  • A single terminal platform can handle a maximum of perhaps 4-6 tph, whereas a single platform on a loop can handle at least 14 tph.
  • Stations can be provided at several places on the loop, where they are needed.

A loop is a very fast and simple way to turn trains.

Time Saving At Stratford Using The High Meads Loop

The 06:34 from Bishop’s Stortford stops at Tottenham Hale at 07:29, Lea Bridge at 07:33 and Stratford at 07:43.

The train then forms the 08:04 from Stratford, which stops at Lea Bridge at 08:10, Tottenham Hale at 08:18 and terminates at Bishop’s Stortford at 09:02.

So the train has taken thirty-seven minutes between the two calls at Lea Bridge station on a modern double track railway.

If the train loaded and unloaded passengers at Platform 11 at Stratford, I suspect that this time could be reduced to under twenty minutes, if the train continued round the High Meads Loop.

Even if there was an extra station on the loop to serve Stratford International station and the Northern part of the Olympic Park, I suspect that a saving on twenty minutes could be made.

Greater Anglia would be a big beneficiary. Currently the train leaves Bishop’s Stortford at 06:34 and arrives back at 09:02, which means a total trip time of 148 minutes for an out-and-back journey with ten intermediate stops both ways.

With a bit of time saving and the new Class 720 trains, I suspect that with the turnround time at Bishop’s Stortford added in, that a train could do the full trip within two and a half hours.

This would mean that ten trains would be needed for a four tph service between Stratford and Bishop’s Stortford.

Take off the twenty minutes saved by the High Meads Loop and the minutes saved by the new trains and I believe that well-driven trains could do the full trip in two hours

This would mean that eight trains would be needed for a four tph service between Stratford and Bishop’s Stortford.

Stansted Airport To Stratford

How much time would be saved if Stansted Airport trains went to Stratford and used the High Meads Loop?

The fastest trains take forty-seven minutes between Liverpool Street and Stansted, with about fourteen minutes needed for the short stretch between Liverpool Street and Tottenham Hale.

Using the High Meads Loop at Stratford would probably mean a similar journey time, as from Liverpool Street, but there would be other advantages, disadvantages and score draws.

  • Both platforms used by Stansted Expresses would be step-free.
  • Train tracks to Stratford are probably less likely to delay.
  • Walking routes at Stratford might be shorter.
  • Both Liverpool Street and Stratford will be served by Crossrail.
  • Stratford could have links to Highspeed services to Kent.

Greater Anglia would be a big winner, as they would have a better train utilisation.

What Length Of Trains Could Use The High Meads Loop?

The only restriction will be the length of platforms at Stratford, Lea Bridge and Tottenham Hale.

Without getting my tape measure out, I suspect they are all capable of taking a twelve-car Class 317 train, which is around 240 metres long.

Ten-car versions of Greater Anglia’s new Class 720 trains are 243 metres long.

I would be very surprised if the platforms couldn’t accept these long trains.

What Would Be The Ultimate Capacity Of The High Meads Loop?

Consider.

  • The Wirral Line Loop under Liverpool handles fourteen tph.
  • More complicated tunnels under London like Crossrail, the East London Line and Thameslink are planned to handle 24 tph.
  • Modern digital signalling will be applied in the next couple of decades to the West Anglia Main Line.

Consider.

  • The Southbound third track and the route to Stratford from Lea Bridge can probably easily handle fifteen tph or a train every four minutes.
  • Platform 11 at Stratford with perhaps some escalators, could probably handle fifteen or even twenty tph, as do stations like Canada Water and several stations on Thameslink and the Wirral Line.
  • Northwards from Stratford, there is probably a total limit of twelve tph along the Lea Valley, that could be increased by removing level crossing and modern signalling.

I suspect that the ultimate capacity is way in excess of the number of services that need to be run from Stratford up the West Anglia Main Line.

Using The High Meads Loop To Take Pressure From Liverpool Street

Liverpool Street is crowded.

  • Some platforms can’t accept full length trains.
  • West Anglia services crawk between Liverpool Street and Tottenham Hale at a speed of not much more than 40 mph at times.
  • The two operators; London Overground and Greater Anglia want to add additional services to the station.
  • c2c also want to serve the station, as they have capacity problems at Fenchurch Street.

However, future developments will make Stratford a viable alternative to Liverpool Street.

  • Crossrail will provide a high-capacity service linking both stations to the Canary Wharf, Heathrow and the West End.
  • Better access to the Central Line will happen.
  • Stratford has access to the important Jubilee Line.
  • Stratford will be able to take advantage of Docklands Light Railway developments.
  • Tottenham Hale station will have better interchange to the Victoria Line.

So why not move some services from the West Anglia Main Line to the High Meads Loop?

What Services Could Be Transferred From Liverpool Street To The High Meads Loop?

At present, all stopping trains between London and Bishop’s Stortford, start from Stratford and I can see this continuing after the third track opens.

I could also see extra services on this route to deliver the promised four tph to Meridian Water and Nothumberland Park.

Four tph can probably use Platform 11 st Stratford, but looking at the smooth unhurried operation of the Wirral Line Loop at Liverpool, I suspect that the High Meads Loop will be used.

Looking at all the other services between Liverpool Street and Tottenham Hale, only the two tph between Liverpool Street and Hertford East, stop at another station, which is South of Tottenham Hale.

So it would probably not be sensible to transfer theseHertford East services to the High Meads Loop, but it might be a good idea to add two tph all day between Stratford and Hertford East, to create a four tph service to Hertford East with two tph from both Southern terminals.

Some services between Liverpool Street and Cambridge and between Liverpool Street and Stansted might be augmented with more services or moving the services to the High Meads Loop at Stratford.

I would suggest that about half the services went to Liverpool Street and terminated as they do now and the rest used the High Meads Loop.

This would mean that those, who’d caught the wrong train or changed their destination, could just change at Tottenham Hale by walking across the island platform.

I was on a train going South to Liverpool Street recently, when I changed my mind and transferred to a Stratford train. As I inew a Stratford train was close behind, I only had to wait a few minutes.

Note that, if there are six trains on both branches, then the maximum wait would be ten minutes.

Examining A Possible Timetable

This is definitely my speculation, but I am trying to show what is possible!

I also very much believe that Network Rail, Greater Anglia and London Overground will come up with something much better.

A Few Rules

I am using these rules to guide me in my thinking.

  1. All trains going to Stratford use the High Meads Loop and Platform 11 at Stratford.
  2. No station gets an inferior service to that it gets at the present time.
  3. All Southbound trains for Stratford use the new third track between Meridian Water and Lea Bridge Junction.

I think that this could be a good mix of services.

  • One tph Liverpool Street to Cambridge
  • One tph Liverpool Street to Cambridge North
  • Two tph Liverpool Street to Hertford East
  • Four tph Liverpool Street to Stansted
  • Four tph Stratford to Bishop’s Stortford
  • Two tph Stratford to Hertford East
  • Two tph Stratford to Stansted

Note.

  1. Greater Anglia have said they will run a Stratford to Stansted service from 2019.
  2. The two extra Stratford to Bishop’s Stortford and Hertford East services will have similar calling patterns to the existing services.
  3. Eight tph goes to and from both Liverpool Street and Stratford.
  4. Currently, eight tph run between Tottenham Hale and Liverpool Street.
  5. Based on the my observations of the relaxed operation of the Wirral Line Loop under Liverpool, I feel the capacity of the High Meads Loop could be as high as sixteen tph.
  6. Calling patterns will be adjusted to improve frequencies at Ponders End and Brimsdown stations
  7. The only other passenger trains on the route are two tph between Stansted Airport and Cambridge.

The number of trains running on each section of track would be as follows.

  • Eight tph – Liverpool Street to Tottenham Hale
  • Eight tph – Stratford to Tottenham Hale – Southbound trains use the third track where is has been added.
  • Sixteen tph – Tottenham Hale to Broxbourne – Southbound trains use the third track where is has been added.
  • Twelve tph – Broxbourne to Bishop’s Stortford
  • Eight tph – Bishop’s Stortford to Stansted Airport
  • Six tph – Stansted Airport to Cambridge

I’m not sure if this would be achievable, but there are several double-track main lines in the country, that handle at least sixteen tph.

Extra Services On The Lea Valley Routes Of The London Overground

The London Overground services from Liverpool Street to Cheshunt and Enfield Town have the following characteristics.

  • A frequency of two tph.
  • Extra peak hour services.
  • Both services pass through Hackney Downs and Seven Sisters stations.

London Overgriound probably want to add two extra tph to both routes to increase the frequency to four tph. Unfortunately, the crowded lines South of Seven Sisters and a full Liverpool Street station, probably make this difficult.

Look at this map from carto.metro.free.fr, which shows the lines South of Tottenham Hale and Seven Sisters stations.

South Tottenham station is on the Gospel Oak to Barking Line, with the following connections.

  • At the Western end of the station, the Seven Sisters Chord connects the station to the Lea Valley Line to Cheshunt and Enfield Town.
  • At the Eastern end of the Tottenham South Curve connects the station to the line to the High Meads Loop at Stratford.

Would it be possible to run the extra two tph from both Cheshunt and Enfield Town to the High Meads Loop?

If it is possible, then the following frequencies will be achieved.

  • Four tph between Cheshunt and Edmonton Green
  • Four tph between Enfield Town and Edmonton Green
  • Eight tph between Edmonton Green and Seven Sisters.
  • Four tph between Seven Sisters and Stratford.

But more importantly, it will create more routes for East London’s Duckers-and-Divers to challenge the clock.

  • Large parts of Enfield and Haringey now get a direct connection to Stratford.
  • The new White Hart Lane station will have a direct connection to Stratford.
  • Stratford to stations on the Gospel Oak to Barking Line is now just a step-free change at South Tottenham station.

I also wonder how many new sites for housing will become viable because of all the new transport links.

Future Developments

There are several developments planned or proposed, that will affect traffic on the West Anglia Main Line.

Track Improvements

The mainly two-track West Anglia Main Line has a maximum operating speed of 100 mph, but travelling the line over the last few days, at times we were only travelling at about 50 mph for long periods.

So I suspect that the average operating speed could be increased.

There are also several level crossings, including those at Brimsdown, Enfield Lock and Cheshunt on the busiest Southern section of the route..

Digital Signalling

Modern digital signalling on the West Anglia Main Line must allow more trains to be squeezed into the timetable.

New Trains

The current trains that work the West Anglia Main Line are Class 379 and Class 317 trains.

Both trains are 100 mph trains although the Class 317 trains are now nearly forty years old.

They are being replaced with Class 720 and Class 745 trains, which although they are also 100 mph trains, may offer advantages, because they are newer designs.

  • Better acceleration and smoother regenerative braking.
  • Easier passenger entry and exit.
  • Shorter dwell times at stations.
  • Better passenger comfort and facilities.

But crucially, they will be able to take advantage of the modern digital signalling.

I think it is very likely that the new trains will speed up services on the West Anglia Main Line.

I also think that the combination of digital signalling and new trains, that are capable of using it, will allow higher frequencies of trains to be run on the West Anglia Main Line.

A Possible Pattern Of West Anglia Line Services

Could we see the following in the future?

  • London Overground services on the Lea Valley Lines use Liverpool Street, as they do now.
  • Greater Anglia services on the West Anglia Main Line to Bishop’s Stortford, Cambridge, Hertford East and Stansted Airport are split between Liverpool Street and Stratford.
  • Stratford services use the High Meads Loop and stop at either Platform 11 or 12 at Stratford.

It would certainly increase terminal capacity at the Southern end of the West Anglia Main Line and free up platform space in Liverpool Street.2 ru

.Conclusion

I wouldn’t be surprised to see the following.

  • Twenty tph up and down the West Anglia Main Line.
  • Direct services up the West Anglia Main Line to Norwich via Cambridge using bi-mode Class 755 trains.
  • Extra services between Stratford and Cambridge, Hertford East and Stansted.
  • Services are adjusted so that each station South of Broxbourne gets four tph or more.

Note that I haven’t mentioned adding a fourth track.

I believe that my calculations show it might not be needed to achieve the required intensive service on the West Anglia Main Line.

 

August 20, 2018 Posted by | Transport | , , , , , , , , , , | 6 Comments

The Last Unmodified Rakes Of Mark 3 Coaches In Front Line Service

Greater Anglia runs the last rakes of the unrivalled Mark 3 coaches, with their original doors, on their services between London and Norwich.

This set was going North pushed by an immaculate Class 90 locomotive, which like the coaches is no spring chicken.

The Swiss-built Class 745 trains, will have to be very good, to gain the same hard-won reputation.

One of these rakes of coaches is going to be hauled by 60163 Tornado.

I suspect other rakes will find specialist uses. If not in the UK, then in other countries with standard gauge railways.

July 10, 2018 Posted by | Transport | , , , | Leave a comment

TiLo

Treni Regionali Ticino Lombardia or TiLo is a train company. which is described like this in Wikipedia.

TILO (Regional Trains Ticino Lombardia) is a limited company established in 2004 as a joint venture between Italian railway company Trenord and Swiss Federal Railways (SBB CFF FFS), both companies participate in the equity of TILO SA with participation of 50%.

The company’s goal is to develop the regional cross-border traffic between the Canton of Ticino and the Region of Lombardy.

I came across one of their thirty Stadler FLIRT trains at Milan Centrale station.

Note how Stadler have solved the step problem, as compared to the train I took to Navara.

Stadler are producing three fleets of trains for the UK.

The trains are reported to have gap fillers, like the FLIRT in the pictures.

May 29, 2018 Posted by | Transport | , , , , , , | Leave a comment

The Intelligent Bi-Mode Train

In the June 2019 Edition of Modern Railways, there is an article, which is entitled Stadler Bi-Modes Taking Shape.

It gives a deep insight into the philosophy of how the trains was designed and how they operates.

Abbreviations Used

Low-Floor Design

This is said.

Both the BMUs and EMUs will have a low-floor design enabling level boarding at every passenger door, with retractable steps bridging the gap between the train and the platform edge.

How simple is that?

This picture show’s a Flirt in Italy.

Surely, every train should have level boarding!

Passive Provision For Digital Signalling

The cabling is already installed and rack space has been left.

Sensible!

But I suspect there will be a new train fleet delivered, in the next couple of years, where the trains are not future-proofed.

Drivers Helped Design The Cabs

Consultation was about both hardware and software.

Lots Of Cameras

This is said.

Extensive video surveillance and bodyside cameras will allow drivers to control the opening and closing of doors.

Surely, more cameras means better safety and security, so why are the RMT against these new trains?

Perhaps, RMT members didn’t get free trips to Switzerland?

Twelve-Car Trains Are Possible

This is said.

Up to three BMU sets can operate in multiple, allowing a 12-car formation to run should this ever be required.

Why would Greater Anglia need a twelve-car BMU?

Problems do occur and suppose one of the London-Norwich EMUs had a serious problem, that meant it would be in the workshop for several weeks.

During this time, three four-car BMUs could be run as a twelve-car formation to cover for the missing EMU.

  • Performance would be the same.
  • Both trains carry around 700 passengers.
  • The BMUs would be on electric power all the way.

The only disadvantage would be that the BMUs have no buffet and First Class seats.

In my regular travelling on the Great Eastern Main Line in the last thirty years, I have been involved in two incidents where all trains stopped because of weather or a derailment. If the track, electrification and trains are the best, then there will still be the occasional closure.

But a twelve-car BMU would still be able to use the alternative route via Cambridge!

Do Greater Anglia see the BMUs as a means of getting passengers to their destimation, in circumstances, which interrupt normal service?

They’ve obviously done their sums and is it cheaper to have a couple of BMUs spare to cover for problems, than have passengers wait until everything is fixed?

I think, t is more likely that eight-car trains will be used.

Could for instance two four-car trains start from Lowestoft and Bury St. Edmunds in the morning and then join at Ipswich for a fast run to London for commuters?

Or would eight-car trains be used on Cambridge-Ipswich and Cambridge-Norwich, when there are important football matches?

The BMU train lengths of three and four cars, would also allow train capacity to be geared to the route.

Will we see other train companies buying this type of flexible capacity?

Flexible Power Source

This is said.

Stadler says the bi-mode Flirts are EMUs with a power pack in between just to generate power, adding that the power pack can be removed later to create an EMU or the equipment in the power module exchanged for batteries or other power sources.

Stadler says this flexibility will be important in the train’s lifespan of between 30 to 35 years.

All End Cars Are The Same

Both the BMUs and EMUs have the same end cars.

Except for a switch box to change power source in the BMU.

The four-car BMUs have two extra cars, both of which have a pantograph, whereas the three-car BMUs have just a single extra car.

It has been said, that three-car trains can be converted to four-cars, by just adding another car.

This picture, clipped from Wikipedia, shows the layouts of both trains.

What does a design like this save in manufacture, operation, driver training and maintenance?

Environmentally-Friendly

It goes without saying that the trains comply with the latest emission and noise regulations.

Changing Power Source

This is said.

Drivers of BMUs will be able to switch between electric and diesel modes whilst on the move if agreement is reached with Network Rail.

As a Control Engineer by training, I would feel that if a BMU can’t switch between modes on the move, then it is a very poor design of BMU.

Regenerative Braking

Regenerative braking is fitted and it works in diesel mode as well as electric, but it is not stored on the train in a battery and is just burned off in a brake-resistor, if it can’t be returned through the overhead line.

I would expect, that at some point in the future batteries will be added to the power module to capture and resuse this energy, which is now wasted.

Intelligent Engine Management

This is said.

When the output of all the engines is not required one or more can be shut down to save fuel, with the engine management system ensuring this is shared across all engines over a period of time to balance maintenance schedules.

Sensible.

But, I worked for ICI in the 1970s and some of the early computerised chemical plants used optimisations like this to improve efficiency!

Bicycle Spaces

East Anglian trains, especially those starting or finishing in Cambridge, carry a lot of bicycles.

All the BMUs have provision for six bicycles! Is that enough?

Conclusion

The Class 745 and Class 755 trains are an interesting dual-solution to the problem of East Anglia’s railways, which have a dual electric spine from London to Norwich and Cambridge and a plethora of connecting routes without wires.

Other franchises must be looking seriously at a similar solution.

It should also be noted that Stadler have delivered Flirt EMUs with a 125 mph operating speed to Norway and Sweden.

So could we see 125 mph BMUs operating on lines, like the Midland Main and West Coast Main Line?

It could be that the weight of the power module means that the 100 mph of Greater Anglia’s Class 755 trains is the maximum possible speed on diesel.

In which case could we see a Flirt with 125 mph on electric power and 100 mph on diesel?

 

May 28, 2018 Posted by | Transport | , , , | Leave a comment

No ‘Ironing Board seats’ For Greater Anglia’s New Trains

The title of this post is the same as the title of this article on Rail Magazine.

The proof will be in the sitting, but the article encourages me, that comfort will be better than some recent new trains.

May 2, 2018 Posted by | Transport | , , , , | 2 Comments

Crossrail Tests Its Trains In Southend

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

This is the first paragraph.

Crossrail trains are being tested from Southend to London – raising hopes that in future they could run to and from the town on a regular basis.

As the title of the article indicates, it could be that Bombardier and Crossrail are seeing how a Class 345 train performs on the route, prior to the delivery of Greater Anglia’s similar Class 720 trains, which are another train in Bombardier’s Aventra family.

Southend Victoria Station

Southend Victoria station could be a destination for Crossrail in the future, but consider these facts.

  • Southend Victoria station is 41.5 miles from London Liverpool Street station and the fastest services take about an hour.
  • Southend Victoria has a frequency of three trains per hour (tph) to London Liverpool Street.
  • Southend Victoria station has four terminal platforms and is a short walk to the Town Centre.
  • Reading station is 36 miles from London Paddington station and the fastest services take just over half-an-hour.
  • Fast-growing Southend Airport with its station is on the Shenfield to Southend Line and the Airport would surely welcome a direct link to Central London and Heathrow.
  • The three tph on the Shenfield to Southend Line doesn’t have a good interchange with the one train every forty minute service on the Crouch Valley Line.

If there is a major problem, it is that Greater Anglia is losing passengers to c2c with its station at Southend Central.

Between 2013/14 and 2015/16 Southend Victoria has lost 2.79 million passengers, whereas in the same period Southend Central has gained  1.14 million.

From what I have seen Greater Anglia intend to speed up the Liverpool Street to Norwich services to ninety minutes and run at a frequency of 3 tph. They are also going to add a fourth train that goes to Ipswich. So again, the three tph service to Southend, isn’t the best fit to services on the Great Eastern Main Line for passengers travelling between say Southend and the County Town of Chelmsford.

There are probably not too many reasons for Crossrail to be extended to Southend for its own sake, but if Greater Anglia and Crossrail decide that an integrated service is to be provided between Shenfield and Southend, then everything is up for discussion.

Fast Trains Between London And Southend Victoria

The current Southend to London trains stop seven times to the East of Shenfield.

They would probably need to stop at Southend Airport and perhaps two of the busiest stations, but cutting out five stations would probably bring the journey time down to fifty minutes, which would attract passengers and make it easier for Greater Anglia to run the service, as trains could do the round trip in comfortably under two hours.

Running three tph, as now, would need just six trains and running a desirable four tph would need eight trains.

I’d be very interested to see what time a one of the new Stadler Class  745 trains, could achieve on the route, with just four stops at Stratford, Shenfield, Billericay and Southend Airport.

Slow Crossrail Trains Between Shenfield And Southend Victoria

Paired with the fast trains could be a number of extended Crossrail services.

Based on Crossrail’s projected timings between Liverpool Street and Shenfield of 41 minutes and the current 35 minutes between Shenfield and Southend, a timing of 76 minutes is estimated.

  • Crossrail’s trains could save as much as two minutes at each of the seven stops, East of Shenfield.
  • The Shenfield to Southend Line has an 80 mph speed limit, which I suspect could be improved.

So could we see Slow Crossrail trains achieving the times that Fast Greater Anglia trains do now?

I think the answer is yes and it shows how trains have improved in the last few decades.

How Many Trains Could Use The Shenfield To Southend Line?

The capacity must be quite high, as the only complication is the totally independent Crouch Valley Line.

Southend Victoria station has four platforms, so the station could probably handle sixteen tph, which is more than enough.

I feel that it would be possible to run four Fast expresses and four Slow Crossrail trains in an hour.

Whether that would be an acceptable timetable is another matter.

Interchange With The Crouch Valley Line

The Crouch Valley Line’s one train every forty minutes must be a nightmare for Greater Anglia and passengers alike, and I suspect that Greater Anglia have a cunning plan to run a two tph service on the line.

It appears that the track layout can achieve this, with the two trains passing at North Fambridge station. But as they don’t run two tph on this branch there must be other limitations.

Foremost of these could be the three tph service on the Shenfield to Southend Line.

So sorting out the Shenfield to Southend Line might improve the service on the Crouch Valley Line.

Conclusion

I have come to these conclusions about services between Liverpool Street and Southend Victoria stations..

  • A Fast Greater Anglia express service could probably achieve a sub-fifty minute time.
  • A Slow Crossrail service, could probably do the trip in an hour.
  • Better interchange with Crouch Valley Line and Great Easstern Main Line services would be achieved.
  • Four Fast and four Slow services in each hour is possible.

My choice for the Liverpool Street to Southend Victoria service would be as follows.

  • Four tph – Crossrail Class 345 trains – Stopping at all stations.
  • Four tph – Greater Anglia Class 745 trains – Stopping at Southend Airport, Billericay, Shenfield and Stratford.

Or the simple option of just running the four Crossrail trains.

Crossrail to Southend, isn’t a ridiculous aspiration.

August 11, 2017 Posted by | Transport | , , , , , , , | 3 Comments

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

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

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

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

Greater Anglia’s New Trains

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

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

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

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

I feel that all the trains would have these features.

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

They will offer lots of opportunities to improve services.

The Current Service North Of Broxbourne

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

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

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

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

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

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

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

Crossrail 2 At Broxbourne

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

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

The trains going North of Broxborne would be as follows.

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

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

The Hertford East Branch

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

The branch also has the following characteristics.

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

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

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

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

This would have the following advantages.

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

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

Conclusion

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

 

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

Why Are Greater Anglia Replacing Class 379 Trains With New Stadler Class 745 Trains?

On the West Anglia Main Line, Greater Anglia are replacing ten twelve-car Class 379 trains on Cambridge and Stansted Airport services with ten twelve-car Class 745 trains.

In some ways this is a bit puzzling as the Class 379 trains were only built in 2010-2011 and with the same number of trains, they will probably only be able to run the same level of services between Liverpool Street, Cambridge and Stansted Airport.

Effectively, Greater Anglia have reorganised their fleet which currently is rather diverse into just two train types.

This probably gives tremendous advantages to Greater Anglia in terms of train operation and maintenance and staff utilisation and training.

It also means that as the trains have been specified at the same time, the passenger experience will be similar.

The interiors of the two Stadler Flirts will probably be identical and this must be something the operator will exploit.

Liverpool Street To Ipswich and Norwich

Greater Anglia are saying that they will run three Class 745 services between Liverpool Street and Norwich every hour in ninety minutes. These Great Easstern Main Line services will also do the shorter Liverpool Street to Ipswich journey in sixty minutes.

Greater Anglia have also said they will run a fourth service in each hour to Ipswich. They have also said that some of these extra Ipswich services would be extended to Lowestoft. As the East Suffolk Line is not electrified, the services would require a bi-mode Class 755 train.

When running between Ipswich and Liverpool Street, the Class 755 train would be identical in performance and experience to its electric big sister.

One advantage of the electric and bi-mode trains being the same, is that on electrified routes in the event of a Class 745 train being unavailable, two or even three lass 755 rains could deputise.

Perhaps the only difference would be the lack of a buffet.

Greater Anglia could also use the Class 755 trains to provide a direct Liverpool Street to Bury St. Edmunds service, if they felt the need was there.

Liverpool Street To Cambridge And Stansted Airport

Just as I believe they will be mixing the Class 745 and Class 755 trains on the Great Eastern Main Line, Greater Anglia have said they’ll be mixing the two types on the West Anglia Main Line.

An hourly Norwich to Stansted Airport service will be introduced using a Class 755 train.

Additional Class 755 Services

Greater Anglia have ordered fourteen three-car and twenty-four four-car Class 755 trains, which is a lot more trains than they use at present for the routes.

So in addition to increasing frequencies on routes  like Cambridge to Bury St. Edmunds, Ipswich, Norwich and Peterborough are they thinking of expanding services?

In the past the following services have been run.

  • Liverpool Street to Norwich via Cambridge.
  • Liverpool Street to Peterborough via Ipswich
  • Liverpool Street to Great Yarmouth via Norwich.

In addition, there are two services that Greater Anglia might take over from other operators.

Note.

  1. Both services seem to get overcrowded at times.
  2. Very little of either route is electrified.
  3. Liverpool to Norwich currently takes five and a half hours.
  4. After Norwich-in-Ninety is achieved, it will be possible in four and a half hours via London.
  5. Birmingham to Stansted Airport  currently takes nearly three and a half hours. Time can be saved by going via London.

With the opening of Crossrail and other faster services, I can see that these two routes will increasingly be important local routes, rather than ones used by masses of long distance travellers.

In the public consultation document for the new East Midlands Franchise, this is said about these services.

At the eastern end of the route, options might exist to provide direct services between Nottingham and a wider range of stations in East Anglia, such as Cambridge and Stansted Airport. Some options could also result in changes to the destinations served by the existing Birmingham to Stansted Airport service currently operated by the Cross Country franchise.

It looks to me that there will be a lot of serious discussions going on.

Conclusion

Where does this all fit with Greater Anglia and their fleet of Class 755 trains?

I just think that on some routes, they are ideal to provide new services or boost existing ones and they will give passengers the same experience as they get on the flagship London to Norwich services.

The Class 379 trains don’t give the flexibility and the homogeneous passenger experience.

 

 

 

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

The Design Of The New Greater Anglia Class 745 Train

I am writing this article about the new Class 745 trains for Greater Anglia, as I think they fit the evolving pattern of train design.

The Article In The July 2017 Edition Of Modern Railways

In the July 2017 Edition of Modern Railways, there is an article entitled GA Shows Off Stadler Mock-Up, where this is said.

GA’s fleet will all offer air-conditioning, wi-fi, plug and USB points, electronic seat reservations and will have a low floor design to offer improved accessibility.

I would expect no less!

This is also said.

The 12-car EMUs are formed of two six-car sets permanently married together. Each six-car set has one power bogie at each end, with a total of four on a 12-car train.

As the train has a First Class section and the bistro buffet between First and Second Classes, I suspect there could be two different types of six-car set.

  • One with the First Class seats, the bistro buffet and perhaps a couple of Second Class cars.
  • One with Second Class seats.

Normally, trains will be formed of one of each set.

I would assume, if say two six-car sets were out of service for some reason, the two working sets could be married to create some temporary capacity.

But yet again we see a train and a half-train philosophy.

Bicycle Spaces

As the Norwich trains will have six bicycle spaces, perhaps three will be placed in each set.

The article also says that Stansted Expresses will have eighteen spaces. Perhaps, Class 745 trains have a movable bulkhead at the end opposite to the cab, so that bicycle capacity can be tailored to the expected passengers.

Surely, being able to book your bicycle on the train going to East Anglia for the weekend will not be a feature that is not used.

Capacity To Norwich

Currently, there is two trains per hour (tph) between London and Norwich via Colchester and Ipswich, which are eight-cars long.

The new trains will enable 3 tph, each of twelve-cars, which is more than doubling the number of cars in an hour.

Train Power

The current Class 90 locomotives have a power output of 930 kW to pull the eight coaches.

It could be that each of the four powered bogies are rated at 1000 kW, so if that is right, these new trains are much more powerful than the current ones.

This is an extract from the article.

GA is currently investigating the potential to change from diesel to electric power on the move, and says it will seek to utilise the environmental benefits of electric power wherever possible, even on short stretches out of Norwich and Ipswich stations.

All units are designed for 100 mph operation, but with the potential for upgrading to 110 mph in future.

Does the speed upgrade apply to both the electric and bi-mode units?

Knowing the lines well, I suspect that the extra speed could be useful on the following lines.

  • Stowmarket to Norwich
  • Cambridge to Norwich

I suspect that if there is more improved double-track introduced, there couple be other places.

Conclusion

So expect Norwich-in-Ninety and Ipswich-in-Sixty!

 

July 14, 2017 Posted by | Transport | , , | 1 Comment