Thoughts On Extending The Northern Line To Clapham Junction
As I wrote in Northern Line Could Be Extended To Clapham Junction In Regeneration Plans, the extension of the newly-built extension to Battersea Power Station station could be further extended to Clapham Junction station.
Railways Between Battersea And Clapham
This map from OpenRailwayMap shows the tracks that run between the two stations.
Note.
- Battersea Power Station station is in the North-East corner of the map.
- The orange and yellow lines going North from that corner go to Victoria station.
- The orange and yellow lines going North-East from that corner go to Waterloo station.
- The yellow line going West is the West London Line to Shepherds Bush and Willesden Junction stations.
- Clapham Junction station is in the South-West corner of the map.
I estimate that the distance between Battersea Power Station and Clapham Junction stations is about three kilometres.
This map from OpenRailwayMap shows an enlargement of the tracks around Battersea.
Note.
- The tracks going North over the River to Victoria station.
- The tracks going East to Waterloo station.
- The tracks going South West to Clapham Junction station.
- The tracks from Victoria pass over and then join the tracks from Waterloo to continue to Clapham Junction station.
Battersea Power Station station can be seen to the North-East of the junction.
This map from OpenRailwayMap shows an enlargement of the tracks around Battersea Power Station station.
Note how the tracks go through Battersea Power Station station and terminate just before the lines into Victoria station.
It should also be noted that the platforms at Battersea Power Station station are reached using two sets of escalators, so they could be over forty metres below the surface. This would surely make the construction of tower blocks with deep foundations easier over the Northern Line.
But the depth would also enable an extended Northern Line to be below any existing or future construction.
This map from OpenRailwayMap shows the approaches to Clapham Junction station.
There are certainly a lot of tracks through Clapham Junction station.
Reasons For The Extension Of The Northern Line To Clapham Junction
These reasons come to mind.
To Enable Development In The Area
This is always a good reason.
In Network Rail To Outline Business Case For Clapham Junction Redevelopment, I said this.
The Rail Technology Magazine article talks of decking over the whole station and putting two million square feet of development on top. But it also cautions, it would be very expensive.
With that amount of development, there would be a need for as many transport links as possible.
To Improve Access To The Elizabeth Line For Passengers On Trains To And From Victoria
Victoria station does not have an Underground Line, that connects to easily the Elizabeth Line.
The best route to use is described in The Lizzie Line And Circle/District Line Interchange At Paddington – 1st July 2022, where you use the Circle to Paddington.
- To go to the West on the Elizabeth Line, take the Circle/District Line to Paddington.
- To go to the East on the Elizabeth Line, take the District Line to Whitechapel.
- To go to Liverpool Street take the Circle Line all the way.
Getting to the stations between Paddington and Liverpool Street means a change at either of those stations.
At Waterloo, you can use the Northern Line, which has a direct connection to Tottenham Court Road on the Elizabeth Line.
Connecting to the Northern Line at Clapham Junction will give Victoria-bound passengers, the advantages of those going to Waterloo.
An Alternative Way Of Connecting Victoria To The Elizabeth Line
The lack of an easy connection between the Victoria and the Elizabeth Line is a pain and I believe that it was a major omission in the design of the Elizabeth Line.
- Dear Old Vicky has a frequency of upwards of thirty trains per hour (tph)
- With some improvements at stations like Oxford Circus, Highbury & Islington and Walthamstow Central, the line could handle some more passengers.
- More step-free access would also help increase capacity.
- Engineers are a competitive bunch and I could see the day, when Vicky is running at 40 tph.
If Vicky was running at forty full tph, it would be moving 45120 passengers per hour.
This would mean that to match the passenger capacity of the older line, the Elizabeth Line would have to be running at a frequency of thirty tph.
As passengers at the ends of the line have difficulty getting to places like Paddington and Heathrow, a connection between the two Queens would really help.
Vicky was universe-class in the 1960s and now she needs updating to the 21st Century.
This map from cartometro shows the Lines through Bond Street and Oxford Circus stations.
Note.
- The Bakerloo Line is shown in brown.
- The Central Line is shown in red.
- The Elizabeth Line is shown in purple.
- The Victoria Line is shown in light blue.
- The Elizabeth Line is the deepest line.
In addition, consider.
The Eastern exit of the Elizabeth Line at Bond Street station has three escalators and lifts. It also opens onto Hanover Square, so it won’t suffer from overcrowding problems outside.
- Hanover Square is just a garden, with no car park underneath, so pedestrian tunnels could pass under it
- I also suspect there are no existing or planned buildings between the two stations with deep foundations that would block a pedestrian tunnel.
- With the capability and ingenuity of three-D design software, I can see wide tunnels being created that would link Oxford Circus and the two Bond Street stations.
- The new wide tunnels at Bank station have opened up the station’s capacity and all the tunnels were dug traditionally.
- If it was felt to be needed, moving walkways could be added, just as they have been at Bank station.
I am absolutely sure, that by using the ideas and methods, that have worked so well in the upgrade of Bank station, that Oxford Circus and Bond Street stations could be turned into a London Superhub Station, that connects all the Underground lines together and has entrances all over the area.
The benefits of such a station would be.
- It would provide a high-capacity link between London’s two highest-capacity Underground Lines; Elizabeth and Victoria.
- It would provide a high-capacity link between the Elizabeth Line and Euston, St. Pancras and King’s Cross.
- It would provide a high-capacity link between the Elizabeth Line and Victoria.
- It would provide a high-capacity link between the Elizabeth Line and High Speed Two.
- Areas like Brixton, Haringey and Walthamstow would gain a much needed link to the Elizabeth Line for Heathrow and Paddington.
Wikipedia says this about the building of the Bank Station Upgrade.
As part of the development of the scheme, TfL worked with potential bidders to improve the design of the station from TfL’s original design. The design proposed in the winning bid by Dragados was 9.7% cheaper than the original design (saving TfL £60m), took 10 months less time to construct than the original design (the proposed closure of the Northern line was also 5 weeks shorter), and the layout of the station was more efficient. This substantially improved the benefit–cost ratio by 45% to 3.5:1.
The Mayor should be knocking on the door of Dragados and asking them for a price for a design and build for a West End Superhub station.
A Possible Route For The Extension Of The Northern Line To Clapham Junction
I suspect that the simplest route for the extension of the Northern Line would be to bore or dig a twin-track railway underneath the numerous other railways in the area.
It could terminate in two underground platforms at Clapham Junction station.
This is the first map of this post and it shows the tracks that run between the two stations.
Note.
- Battersea Power Station station is in the North-East corner of the map.
- Clapham Junction station is in the South-West corner of the map.
The Western of the pair of orange Lines going off the map in the North-East corner of the map is the Brighton Main Line.
It passes through Battersea Park station.
It passes over the South Western Main Line out of Waterloo.
It then loops to the West and joins the lines to Clapham Junction on the Southern side.
It serves four platforms at Clapham Junction; 12 and 14 are up platforms and 13 and 15 are down platforms.
This Google Map shows an overview of Clapham Junction station.
Note.
- Platforms 1 and 2 at the top of the map, handle London Overground services.
- Platforms 3 to 11 handle South Western Train services.
- Platforms 12 to 17 handle Southern services.
- Platforms 9 and 10 have a Delice de France cafe.
- Platforms 11 and 12 have a Cuppacino cafe.
- Platforms 13 and 14 have the logos.
- All platforms have full step-free access with lifts to the wide footbridge that connects all platforms.
The platforms don’t seem to be very wide and putting stairs and escalators down to underground platforms could be a difficult proposition.
This map from OpenRailwayMap shows shows the platforms at Clapham Junction station and the track layout to the West of the footbridge.
Note.
- The tracks through the platforms are shown in orange.
- The blue dots are platform numbers.
- The bridge connecting all the platforms is shown shaded in the middle of the map.
- To the West of the bridge are Clapham Junction Sidings and Clapham Traincare Depot.
These pictures were taken from the bridge.
Note.
- The top row of pictures were taken looking West.
- The bottom row of pictures were taken looking East.
- Many of the tracks are electrified.
- There is a lot of space to park trains.
Will all the space be needed now, that a new depot has been built at Feltham.
Could Two New Surface Platforms Be Built For The Extension Of The Northern Line To Clapham Junction?
Consider.
- The step-free bridge across all the platforms at Clapham Junction station works well.
- It is connected to the streets around the station at both ends.
- Clapham Junction station will be redeveloped and surplus depot land could be used for housing.
- As the maps show, there is a large gap in the platforms between the South Western Railway and the Southern sides of the station.
- As Battersea Power Station station can turn services on the Northern Line with only two platforms, there would only need to be the same number of Northern Line platforms at Clapham Junction.
So could an extra pair of platforms be built under the bridge, with stairs and a lift similar to the existing platforms?
- The platform would have full step-free access.
- The platforms could be long enough for any future trains.
- There could be sidings for a few trains.
- The tunnels from Battersea Power Station would surface just outside the station.
- There would need to be a crossover or a turnback siding for operational reasons.
I also think, that once the depot and sidings at Clapham Junction have released the space, the new platforms and tracks could be installed without interrupting main line services through the station.
Would The Extension Of The Northern Line Be Electrified?
Consider.
- Merseyrail were not allowed to use third-rail electrification to Headbolt Lane station and had to use batteries.
- The Northern Line was extended to Battersea Power Station station using London’s four-rail electrified system.
- Clapham Junction station has third-rail electrification everywhere.
I think that the authorities would be very churlish not to allow electrification to Clapham Junction.
Conclusion
I believe it is possible to extend the Northern Line to two new surface platforms at Clapham Junction station.
But I also believe that using similar methods to those used in the Bank Station Upgrade, that a full interchange between the Elizabeth and Victoria Lines can be built at Oxford Circus and Bond Street.
.
From Moorgate To Imperial Wharf – 30th June 2022
I wanted to see the new entrance at Imperial Wharf station today, so after a full English breakfast on Moorgate, I took the Lizzie Line, Central and West London Lines across London.
I took this route.
- Lizzie Line – Moorgate to Tottenham Court Road
- Central Line – Tottenham Court Road To Shepherds Bush
- West London Line – Shepherds Bush To Imperial Wharf
I took these pictures along the route.
Note.
- The change at Tottenham Court Road station involves going up to the ticket hall and down again.
- The change at Shepherds Bush involves crossing the road between the Central Line and Overground station.
- The last few pictures show the new entrance at Imperial Wharf, which is for Northbound trains only.
When Bond Street station opens on the Lizzie Line, it should be easier to change there for the Central Line.
The Plans For A Connection Between The Lizzie And West London Lines?
This map from cartometro.com shows, where the Lizzie and West London Lines cross in the area of Old Oak Common.
Note.
- The Overground is shown in orange and splits into the North and West London Lines South of Willesden Junction station.
- The Lizzie Line is shown in purple and black, as it goes across the map, as at this point it shares tracks with the Great Western Main Line.
This map shows how High Speed Two will change the lines.
Note.
- Hythe Road station on the West London Line, which will have a walking route to High Speed Two and the Lizzie Line.
- Old Oak Common Lane station on the North London Line, which will have a walking route to High Speed Two and the Lizzie Line.
- The Dudding Hill Line, which is shown as an orange double-line and could be part of the West London Orbital passing North-South to the West of Old Oak Common Lane station.
- The Acton-Northolt Line, which is shown in blue and could give Chiltern Railways extra platforms at Old Oak Common with a walking route to High Speed Two and the Lizzie Line.
Wikipedia says that the status of the two Overground stations according to Transport for London is as follows.
Subject to funding being secured and further public consultation, we would seek permission to build and operate the proposals via a Transport and Works Act Order (TWAO). Funding remains a significant constraint in delivering these proposals. We are currently seeking to establish a package of funding that could enable the stations to be delivered by 2026 alongside the new HS2 and Elizabeth line station.
I suspect that with our current South London Mayor, we will see little progress on these connectivity schemes at Old Oak Common station, as with the possible exception of Hythe Road station, there’s little in it for South London.
Conclusion
Hythe Road station would certainly have made my journey easier yesterday.
Hopefully, though, if I do the journey again in the next year or so, Bond Street station will be open on the Lizzie Line and I’ll change to the Central Line there.
Longhedge Junction Speed Increases
London has a rail capacity problem, for both freight and passenger trains.
This report from Network Rail is entitled The London Rail Freight Strategy (LRFS).
One of the secondary recommendations of the report is to increase speed through Longhedge junction.
The report explains it like this.
There is an opportunity to enhance Longhedge Junction, a key location for freight passing through the Battersea area, to enable higher speeds and provide faster transit between the South London Line and West London Line or Clapham Junction (for the Brighton Main Line or Windsor lines).
This would benefit the numerous freight flows through this important part of the network, where two orbital routes connect to each other and to radial routes in and out of London to the south and south-west.
London Overground SLL services running to and from Clapham Junction would also benefit from an increase to the existing 25mph line speed through Longhedge Junction.
This map from cartometro shows the location of Longhedge junction.
Note.
- The orange and black tracks are London Overground routes.
- The Overground route going East is the Dalston Junction and Clapham Junction service that goes via the South London Line (SLL).
- The Overground route going West is the Stratford and Clapham Junction service that goes via the West London Line (WLL).
- The two Overground routes combine to run into the Overground platforms at Clapham Junction.
- There is a double-track route, that links Latchmere 1 junction on the West London Line with Longhedge junction on the South London Line.
- Longhedge junction is in the East of the map.
It is an area congested with train tracks and junctions.
Traffic Through Longhedge Junction
Longhedge junction is busy, with the following trains in a typical hour.
- Four tph between Dalston Junction and Clapham Junction stations.
- Up to six assorted freight tph.
Note that services run in both directions.
But this Google Map of the are gives hope.
Longhedge junction is to the West of the West of the tracks running North South and it looks like there could be plenty of space to realign the tracks and improve the junction.
As with Nunhead Junction, which I wrote about in Nunhead Junction Improvement, it could be that the use of electric haulage on freight trains through the junction with their more nimble acceleration might help.
Conclusion
This appears to be a serious problem.
What it needs now is a well-designed scheme to speed freight and passenger trains through the junction.
Related Posts
These are related posts about the London Rail Freight Strategy (LRFS).
Decarbonisation Of London’s Freight Routes
East Coast Main Line South Bi-Directional Capability
Gauge Improvements Across London
Headway Reductions On The Gospel Oak To Barking, North London and West London Lines
Heavy Axle Weight Restrictions
Kensal Green Junction Improvement
Moving The West London Line AC/DC Switchover To Kensington Olympia
Moving The West London Line AC/DC Switchover To Shepherd’s Bush
Stratford Regulating Point Extension
Will Camden Road Station Get A Third Platform?
Will Clapham Junction Station Get A Platform 0?
Moving The West London Line AC/DC Switchover To Kensington Olympia
London has a rail capacity problem, for both freight and passenger trains.
This report from Network Rail is entitled The London Rail Freight Strategy (LRFS).
One of the secondary recommendations of the report is to move the switchover between AC and DC power on the West London Line to Kensington Olympia station. It says this about the switchover.
Although moving the changeover to Shepherd’s Bush would eliminate the need for passenger trains to slow down or stop at North Pole Junction, electrically hauled freight trains will still need to switch power supply modes whilst moving, wherever the AC/DC interface is located.
Due to the substantial incline facing trains running northward on the WLL, which increases in severity towards the Willesden end of the route, it would be preferable for the changeover to be made as far south as possible. This would enable freight trains to slow down to switch traction before reaching the worst of the gradient, giving them a much better chance of regaining line speed once drawing power from the OLE.
Although Kensington Olympia is less than a mile to the south of Shepherd’s Bush, the intervening route section is almost entirely level, with the incline commencing just before Shepherd’s Bush station and continuing to rise sharply along the rest of the WLL. The capacity and performance benefits of relocating the changeover are therefore likely to be greater if the overhead wires are extended to Kensington Olympia, removing the risk to traffic flow that would remain if freight trains were forced to switch whilst running uphill.
This would prepare the West London Line for the transition to electric freight that will be necessary as part of the decarbonisation of the railway over the next thirty years.
Resolving the current traction changeover issues for freight as well as passenger trains would support this transition by encouraging freight operators to invest in electric locomotives to run on the orbital routes, in the confidence that this constraint has been addressed.
I covered this recommendation in Moving The West London Line AC/DC Switchover To Shepherd’s Bush, as so many arguments are the same about the two stations.
This was my conclusion in the related post.
I believe, as probably do Network Rail, that Kensington Olympia station should be the station, where the switchover occurs.
I did add a caveat, that it is probably all down to money.
Related Posts
These are related posts about the London Rail Freight Strategy (LRFS).
Decarbonisation Of London’s Freight Routes
East Coast Main Line South Bi-Directional Capability
Gauge Improvements Across London
Headway Reductions On The Gospel Oak To Barking, North London and West London Lines
Heavy Axle Weight Restrictions
Kensal Green Junction Improvement
Longhedge Junction Speed Increases
Moving The West London Line AC/DC Switchover To Shepherd’s Bush
Stratford Regulating Point Extension
Moving The West London Line AC/DC Switchover To Shepherd’s Bush
London has a rail capacity problem, for both freight and passenger trains.
This report from Network Rail is entitled The London Rail Freight Strategy (LRFS).
One of the recommendations of the report is to move the switchover between AC and DC power on the West London Line to Shepherd’s Bush station. It says this about the switchover.
Extension of the overhead wires further along the WLL, to provide AC electrification as far south as Shepherd’s Bush station.
Two passenger train services run along the West London Line.
- Four tph – London Overground – Clapham Junction and Stratford
- One tph – Southern – Clapham Junction and Milton Keynes
Note.
- tph is trains per hour.
- London Overground would like to increase their service to six tph.
- All trains stop at Shepherd’s Bush station.
The West London Line (WLL) runs between Willesden Junction station in the North and Clapham Junction station in the South.
These are the stations and their electrification status.
- Willesden Junction – 25 KVAC Overhead Electrification
- Shepherd’s Bush – 750 VDC Third-Rail Electrification
- Kensington Olympia – 750 VDC Third-Rail Electrification
- West Brompton – 750 VDC Third-Rail Electrification
- Imperial Wharf – 750 VDC Third-Rail Electrification
The switchover is performed North of Shepherd’s Bush station with the train moving.
These pictures show the electrification to the North of Shepherd’s Bush station.
This double-electrification allows switchover, whilst the trains are moving.
This is said in the Network Rail document about moving the West London Line AC/DC switchover to Shepherd’s Bush station.
Extending the Overhead Line Equipment south to Shepherd’s Bush would enable passenger trains to change traction source whilst making their scheduled station stop.
A slight extension to dwell times at Shepherd’s Bush may be required, but the elimination of the need to slow down or, especially, to stop, as is the case for GTR trains, at North Pole Junction would release a significant amount of capacity.
Recent work carried out on behalf of Transport for London calculated that the relocation of the changeover to the Shepherd’s Bush could provide an indicative net saving of 7 minutes per hour, which is equivalent to an additional path and some additional time for timetable flexibility.
The LRFS capacity analysis concluded that this intervention could potentially release up to two additional timetable paths an hour in each direction.
Moreover, the analysis advised that eliminating the need for GTR services to stop to change traction at North Pole Junction would be of significant performance benefit even today.
This sounds to me like this us a good solution, that will give winners all round.
- I went North yesterday on a GTR (Southern) service and can confirm, the stop to switch voltage at North Pole junction.
- Extra paths are always good news.
- I have a feeling that the overhead electrification on the route isn’t the best, so Network Rail may even have to replace it anyway.
What I like about the proposal, is that if the switchover point is moved to Shepherd’s Bush station and in the very rare occurence of a switchover failure, the passengers can be easily evacuated from the train as it will most likely be in Shepherd’s Bush station, rather than in the industrial wastelands of West London.
These pictures show Shepherd’s Bush station.
Note.
- It looks like the bridges have been built high enough for overhead electrification.
- The platforms appear to be able to handle long trains.
- Putting up overhead gantries doesn’t look to be the most challenging of tasks.
I don’t think, that the engineering needed will be difficult and because of the gains outlined in the report, this project should be performed as soon as possible.
Should The AC/DC Switchover Be At Kensington Olympia Station?
The Network Rail document also muses about performing the AC/DC switchover at Kensington Olympia station.
This is said.
Although moving the changeover to Shepherd’s Bush would eliminate the need for passenger trains to slow down or stop at North Pole Junction, electrically hauled freight trains will still need to switch power supply modes whilst moving, wherever the AC/DC interface is located.
Due to the substantial incline facing trains running northward on the WLL, which increases in severity towards the Willesden end of the route, it would be preferable for the changeover to be made as far south as possible. This would enable freight trains to slow down to switch traction before reaching the worst of the gradient, giving them a much better chance of regaining line speed once drawing power from the OLE.
Although Kensington Olympia is less than a mile to the south of Shepherd’s Bush, the intervening route section is almost entirely level, with the incline commencing just before Shepherd’s Bush station and continuing to rise sharply along the rest of the WLL. The capacity and performance benefits of relocating the changeover are therefore likely to be greater if the overhead wires are extended to Kensington Olympia, removing the risk to traffic flow that would remain if freight trains were forced to switch whilst running uphill.
This would prepare the West London Line for the transition to electric freight that will be necessary as part of the decarbonisation of the railway over the next thirty years.
Resolving the current traction changeover issues for freight as well as passenger trains would support this transition by encouraging freight operators to invest in electric locomotives to run on the orbital routes, in the confidence that this constraint has been addressed.
Network Rail seem to have made a very strong case for switching between AC and DC power at Kensington Olympia station.
These Google Map shows Kensington Olympia station.
And these pictures show the station on a very wet day.
It doesn’t appear that there would be too many problems in electrifying Kensington Olympia station.
The only problem, may be the bridge at Addison Gardens to the North of Kensington Olympia station.
Although, Network Rail have an extensive range of tricks to get the wires through.
Conclusion
I believe, as probably do Network Rail, that Kensington Olympia station should be the station, where the switchover occurs.
But it’s all down to money.
It does seem to me, that the London Rail Freight Strategy is the first serious attempt to work out, the possible freight and passenger uses of the West London Line, which is one of those rail lines that has been designed by Topsy and accidents of history.
How many other rail routes in the UK, would be improved by a similar analysis?
Related Posts
These are related posts about the London Rail Freight Strategy (LRFS).
Decarbonisation Of London’s Freight Routes
East Coast Main Line South Bi-Directional Capability
Gauge Improvements Across London
Headway Reductions On The Gospel Oak To Barking, North London and West London Lines
Heavy Axle Weight Restrictions
Kensal Green Junction Improvement
Longhedge Junction Speed Increases
Moving The West London Line AC/DC Switchover To Kensington Olympia
Stratford Regulating Point Extension
Will Camden Road Station Get A Third Platform?
Will Clapham Junction Station Get A Platform 0?
Will Clapham Junction Station Get A Platform 0?
London has a rail capacity problem, for both freight and passenger trains.
This report from Network Rail is entitled The London Rail Freight Strategy (LRFS).
One of the recommendations of the report is to build a Platform 0 at Clapham Junction station. It says this about that that platform.
Creation of additional bay platform capacity at the northern end of Clapham Junction station, for the use
of London Overground WLL services.
This map from cartometro.com shows the track layout as the orange tentacles of the London Overground approach Clapham Junction station.
Note.
- The West London Line approaches Clapham Junction station through Imperial Wharf station.
- The South London Line approaches Clapham Junction station through Clapham High Street and Wandsworth Road stations.
This second map from cartometro.com shows the track layout of the current two Overground platforms at Clapham Junction station and how the third one will fit in.
Note.
- It appears that there are crossovers to allow trains from either South or West London Lines to enter any of Platforms 0, 1 or 2.
- A typical bay platform can turn four trains per hour (tph) or possibly six tph, if the signalling is tip-top.
These pictures show the current state of Platform 0 at Clapham Junction station.
And these show Platforms 1 and 2 at Clapham Junction station.
The current two-platform system seems to work well.
Clapham Junction Station Is A Super-Interchange
Clapham Junction is already a super-interchange on the London Overground with lots of services to Central and Outer London and the wider South of England.
The London Overground probably needs more super-interchanges on its circular route around London.
- Whitechapel and Stratford, which are one stop apart on Crossrail, could develop into one in East London.
- As it grows, Old Oak Common, will develop into one in West London.
Other super-interchanges could develop at Croydon, Hackney (Central/Downs) and West Hampstead.
Network Rail’s Reasons For The New Platform
I’ll start with some information.
Current Overground Services
Current Overground services are as follows.
- 4 tph – Stratford via Willesden Junction
- 4 tph – Dalston Junction via Surrey Quays
The total of 8 tph, is generally easily handled by two platforms, unless something goes wrong.
Future Overground Services
It is expected that in the future services could be as follows.
- 6 tph – Stratford via Willesden Junction
- 6 tph – Dalston Junction via Surrey Quays
As I regularly use the service between Dalston Junction and Clapham Junction to get a connection to places like Portsmouth and Southampton, I know at least one regular traveller, who is looking forward to the increase in frequency.
But there could be another London Overground in the future.
In Gibb Report – East Croydon – Milton Keynes Route Should Be Transferred To London Overground, I wrote how in his report, Chris Gibb recommended that this hourly service should be transferred to the London Overground.
This is said in the Network Rail document about Platform 0 at Clapham Junction station.
The longstanding proposal for the creation of additional bay platform capacity at the northern end of Clapham Junction station, for the use of London Overground West London Line services, is supported by this strategy.
The scheme would reinstate the disused former platform 1 to create a newly designated ‘Platform 0’, adjacent to the present platforms 1 and 2.
This intervention has been recognised as key to long-term growth on the West London Line by several previous pieces of work for both Network Rail and Transport for London, which have consistently concluded that additional platform capacity at Clapham Junction is needed, if TfL’s aspiration to increase the WLL Overground service to 6 trains per hour is to be met.
Capacity analysis for the LRFS has reaffirmed that the desire to operate this level of service throughout the day cannot be achieved with a single bay platform.
Although this scheme would clearly be of direct benefit to the London Overground passenger service, the positive impact it would have on the capacity and performance of the WLL overall means that it is also very much in the interest of freight that Platform 0 be delivered. Without a new bay platform, the main alternative means to increase Overground train frequencies involves the use of platform 17 at the far end of the station, where freight and GTR trains pass through towards the BML. This is a sub-optimal solution for both freight and passenger operations.
Note.
- Platform 0 will share an island platform with Platforms 1 and 2, so there will be short level walks between trains.
- Platform 1 and 2 are already fully accessible, so Platform 0 will be as well.
The report feels that increasing passenger and freight services are often two sides of the same coin.
Questions
I have some questions.
Would Three Platforms Be Enough To Handle Twelve tph?
As two platforms seem to handle eight tph, at most times in the present, I suspect the answer is in the affirmative.
Would Three Platforms Be Enough To Handle Thirteen tph?
This would be needed, if the Milton Keynes service were to be transferred to the Overground and it used Clapham Junction station as a Southern terminus.
If it still went through Clapham Junction station to Croydon, then it would probably use Platform 17, as it tends to do now!
I do suspect that three platforms will be enough, as otherwise the LRFS would be proposing something else.
What Will Be The Length Of The New Platform 0?
Under Future Proposals in the Wikipedia entry for Clapham Junction station, this is said.
In a Network Rail study in 2015, it was proposed that platform 0 could reopen for 8-car operations of the West London Line.
An eight-car platform would allow the current eight-car Class 377 trains, that work the Milton Keynes service to use the platform.
Note that as an eight-car Class 377 train is 163.2 metres long, a platform that will accomodate this train, will be long enough to accomodate a five-car Class 378 train, which is only 102.5 metres long.
But should the platform be built long enough to handle two Class 378 trains working as a pair?
This Google Map shows Platform 1 and the current state of the future Platform 0 at Clapham Junction station.
Note.
- a five-car Class 378 train is standing in Platform 1.
- There are some minor obstructions along Platform 0.
I don’t think it would be impossible to create an eight-car Platform 0. Although, Platforms 0 and 1 might need to be extended by perhaps ten or twenty minutes towards London.
Does The Milton Keynes and Clapham Junction Service Need 110 mph Trains?
I have talked to several drivers, who drive trains on the four 125 mph lines out of London and some have complained about slower 100 mph trains, that get in their way and slow them down.
If the drivers get miffed, I suspect the train operating companies are more annoyed.
But over the last few years, the following has happened.
- Heathrow Express have replaced 100 Class 360 trains with 110 mph Class 387 trains on the Great Western Main Line.
- East Midlands Railway will be running 110 mph Class 360 trains to Corby on the Midland Main Line.
- West Midlands Trains will be replacing 110 mph Class 350 trains with 110 mph Class 730 trains on the West Coast Main Line.
- Great Northern run 110 mph Class 387 trains to Cambridge and Kings Lynn on the East Coast Main Line.
I wouldn’t be surprised to see 110 mph trains running between Milton Keynes and Clapham Junction, as they would just be following a sensible practice to increase capacity.
Conclusion
I have no problems with creating a new Platform 0 at Clapham Junction, but suspect that faster trains would be needed for the Milton Keynes and Clapham Junction, that would use it.
Work Appears To Have Already Started On Platform 0
With the installation of the all-important site hut and the fact that there were several engineers around with laser-measurement tools, I suspect that work is already underway to prepare everything for the construction of Platform 0 at Clapham Junction station.
Related Posts
These are related posts about the London Rail Freight Strategy (LRFS).
Decarbonisation Of London’s Freight Routes
East Coast Main Line South Bi-Directional Capability
Gauge Improvements Across London
Headway Reductions On The Gospel Oak To Barking, North London and West London Lines
Heavy Axle Weight Restrictions
Kensal Green Junction Improvement
Longhedge Junction Speed Increases
Moving The West London Line AC/DC Switchover To Kensington Olympia
Moving The West London Line AC/DC Switchover To Shepherd’s Bush
Stratford Regulating Point Extension
Will Camden Road Station Get A Third Platform?
Would A Mutant Many-Parent Child Help To Solve London’s Transport Problems?
London needs to increase the capacity of its public transport system, as the City continues to get larger and larger.
Current Major Projects
There are only three major rail projects ongoing in London at the present time.
The Bank Station Upgrade
The Bank Station Upgrade appears to be progressing well, albeit perhaps it’s a bit late due to the pandemic.
It is a complex project and from what I have heard and observed, it has been well designed and planned.
The Barking Riverside Extension
As with the Bank Station Upgrade the Overground extension to the new Barking Riverside station, appears to be going reasonably well.
But compared to that project, it is a relatively simple project, built mainly in the open air, with no tunneling.
Crossrail
Crossrail is in trouble, after what many believe was a very good tunnelling phase of the project.
But then tunnels under London usually seem to go well. I can remember the Victoria Line tunnelling and many other under London since the 1960s and all of these tunnels seem to have been dug without trouble. As I write, there don’t seem to be any tunneling problems with the Thames Tideway Tunnel.
Crossrail now has been reduced to a series of station builds and rebuilds, some of which are as large as the Bank Station Upgrade, with other ongoing projects like the testing of trains and systems.
So why are some of these stations running late in their delivery?
If you walk along the route of Crossrail in the City of London and through Clerkenwell and the West End, it is one massive building side as developers raise massive clusters of new developments around and above the Crossrail stations.
The picture shows Farrington station’s Eastern entrance, with a new development on top.
This one wasn’t a big one, but it went up in record time.
These buildings are often funded by Sovereign Wealth Funds, who want their buildings finished ASAP and as they have bottomless pockets, they are prepared to pay more to get the builders and tradesmen they need.
And where did they get the workers from? Other projects, including Crossrail.
This problem happened in Aberdeen at the height of the oil boom in the last century.
I also think that Brexit worsened the problem, as workers from mainland EU moved to large projects closer to home, like Stuttgart 21 and the new Berlin Brandenburg airport, that were both very much in trouble and could have been offering premium salaries as well!
The solution would have been to phase developments so that the limited pool of workers was not exhausted.
But that probably wouldn’t have suited the developers and politicians for all sorts of reasons.
- An uncompleted building doesn’t bring in money and jobs.
- Early completion must improve chances of letting the building.
- Delaying the building would probably have meant fewer holidays for politicians in exotic locations.
Hopefully, a comprehensive enquiry into the lateness of Crossrail will provide answers.
High Speed Two
High Speed Two is to my mind a London local project. But only in a secondary way!
- Rebuilding Euston station will improve Underground connections and interchange at Euston and Euston Square stations.
- It is claimed by High Speed Two, that the rebuilt Euston station will create 16000 jobs and 2200 homes.
- High Speed Two will enable massive development at Old Oak Common, with tens of thousands of homes and jobs.
- Old Oak Common station will be a very important rail hub in North-West London.
With seventeen trains per hour (tph) between Euston and Old Oak Common will High Speed Two attract local traffic?
- I suspect High Speed Two between Manchester Airport and Manchester Piccadilly and between Birmingham Interchange and Birmingham Curzon Street will also attract local traffic.
- I’ve used TGVs between Nice and Antibes.
- Tourists might visit, just like they did and still do at the Olympic Park.
- Many Londoners will join High Speed Two at Old Oak Common.
Some wag will suggest putting it on the Tube Map. But is it such a stupid idea?
Where Does London Need More Rail Services?
Having lived in London on and off for over seventy years, I feel the worst areas for rail links are probably.
- North West London
- South East London
- South Central London between Wimbledon and Croydon.
- South West London
Note.
- Over the years, there is no doubt that East and North London have improved considerably, with the development of the East London, North London and Gospel Oak to Barking Lines.
- Thameslink has been improved in North London and now it is being supported with improvements to the Northern City Line. Both routes now have new Siemens trains, which give a whole new dimension to using ironing-boards as seats.
- Crossrail will produce major improvements in West, East and South East London.
- Building of a new Penge Interchange station, which I wrote about in Penge Interchange could improve routes to and from South East London.
- Hopefully the work in recent years at Waterloo will improve suburban services out of Waterloo. In An Analysis Of Waterloo Suburban Services Proposed To Move To Crossrail 2, I showed that four tph could be run to Chessington South, Epsom, Hampton Court and Shepperton stations.
It looks like North West and South Central London are missing out.
How Can Services Be Improved In North West London?
There are radial routes from the centre of London to the suburbs.
Starting from the North and going to the West, there are the following lines.
- The High Barnet branch of the Northern Line
- The Mill Hill East branch of the Northern Line
- The Midland Main Line to St. Albans, Luton, Bedford and the East Midlands.
- The Edgware branch of the Northern Line
- The Jubilee Line to Stanmore
- The West Coast Main Line to Watford, Milton Keynes, the West Midlands, the North West of England and West Scotland.
- The Bakerloo Line to Harrow & Wealdstone.
- The Watford DC Line of the London Overground
- The Amersham, Chesham and Watford branches of the Metropolitan Line
- The Chiltern Route to Aylesbury.
- The Chiltern Main Line to High Wycombe, Banbury, Bicester, Birmingham and Oxford.
- The West Ruislip branch of the Central Line.
- The Uxbridge branch of the Metropolitan and Piccadilly Lines
When I used to live at Cockfosters as a child, to visit my many cousins in North West London, there was no alternative but to use a bus and take well over an hour each way.
There are now some circular rail routes in London but nothing in the North West of the capital.
The Dudding Hill Line And The West London Orbital Railway
But there is the little-used freight route called Dudding Hill Line.
- It runs between Cricklewood on the Midland Main Line and Acton Central on the North London Line.
- It is four miles of double-track railway.
This YouTube video shows a cab ride from Acton to Cricklewood.
Plans exist to turn it into the West London Orbital Railway, which will run two services.
- West Hampstead and Hounslow via Cricklewood, Neasden, Harlesden, Old Oak Common Lane, Acton Central, South Acton, Lionel Road, Brentford, Syon Lane and Isleworth
- Hendon and Kew Bridge via Brent Cross West, Neasden, Harlesden, Old Oak Common Lane, Acton Central, South Acton
Note.
- The proposed frequency of both services is four tph.
- There would be some stations to be built, but the track exists.
- There would be no new tunnels.
- The route is technically feasible.
- The route would connect West London to High Speed Two.
- There would be little disruption whilst it was built.
- The services could be run by dual-voltage battery-electric trains charged on the electrification at both ends of the route.
- The scheme represents a high value for money, with a benefit-cost ratio (BCR) of 2.2.
On the other hand, the scheme has two serious problems, as far as the current London Mayor is concerned.
- Transport for London has no money, partly because of London’s Fare Freeze.
- The project is not in South London.
This important and value-for-money project will not be built, whilst Sadiq Khan is still Mayor of London.
Harlesden Interchange
I believe that if we get the interchanges right on the West London Orbital Railway correct we can do things like.
- Increase the benefit cost ratio.
- Link the route to South London to make the Mayor a bit happier about the North London Scheme.
This Google Map shows Harlesden station.
Note.
- The Bakerloo Line/Watford DC Line running North-West/South-East through Harlesden station.
- The West Coast Main Line in the Southern section of the map.
- The Dudding Hill Line running North-South across the map.
Platforms will be built on the Dudding Hill Line to connect that would probably be new or extended platforms in the current Harlesden station to enable interchange between the West London Orbital and the Watford DC Lines.
I also think there is a possibility that platforms could be added to the slow tracks of the West Coast Main Line, so that suburban services into London Euston can also connect to the West London Orbital Line.
It would also enable a connection between Southern’s Clapham Junction and Milton Keynes service and the West London Orbital Railway.
Looking at this from various angles, I think that an architect good at designing three-dimensional structures could develop a quality Harlesden Interchange station.
Neasden Interchange
Like Harlesden, Neasden is another possibility for a comprehensive interchange.
This Google Map shows Neasden station.
Note.
- There are a lot of lines going through Neasden station.
- The Dudding Hill Line goes across the South-East corner of the map.
- There is plenty of space in the area.
This map from cartometro.com shows the lines in the area.
Note.
- The Dudding Hill Line is indicated by the former Dudding Hill station.
- The red tracks are Metropolitan Line tracks.
- The silver tracks are Jubilee Line tracks.
- The Southerly pair of lines through Neasden and Dollis Hill stations are Chiltern’s lines into Marylebone.
- The Chiltern tracks divide to the West of Neasden station, with the Aylesbury line following the other tracks and the Chiltern Main Line diverging to the West.
- London’s largest Underground Depot at Neasden, lies to the North-West in an area of London noted for few merits with the North Circular Road passing through.
I wonder, if the station and the depot offers a unique opportunity to offer large scale additions to London’s housing stock over the top of a rebuilt station and depot.
This Google Map shows the wider area.
Note.
- Much of the depot appears to be open-air stabling for trains.
- The North Circular Road passes North-South between the depot and Neasden station.
- The Dudding Hill Line cuts across the South-East corner of the map.
- This corner of the map is labelled as Dudden Hill.
- According to Wikipedia, Dudding Hill is considered a more genteel spelling of Dudden Hill and could be as old as 1544.
It looks as if it would be relatively easy to develop over the top of the depot to create housing, industrial or commercial properties.
But why stop there and cover both the North Circular Road and the six tracks through Neasden station?
Neasden station could be rebuilt into a station with platforms on the following lines.
- Metropolitan Line
- Jubilee Line
- Chiltern Lines
- Dudding Hill Lines
Note.
- I estimate that Chiltern has a train about every six minutes, so some could stop.
- There might be space for a bay platform for Chiltern.
Neasden could be a major housing and transport hub.
- There could be large amounts of parking.
- Road access would be good.
- It would have good rail connections.
- It could have a bus interchange.
- London needs housing.
It might even be an alternative to Chiltern’s plan for a West Hampstead Interchange.
The Mayor of London, Transport for London and the Borough of Brent need to be bold!
Improvements To Chiltern’s Routes
Chiltern Railways have some plans that could improve services in North West London.
Using The Acton-Northolt Line
Wikipedia says this about using the Acton-Northolt Line to access new platforms at Old Oak Common station.
Upgrading the Acton–Northolt line (formerly the “New North Main Line”) to new platforms at Old Oak Common. This upgrade will also extend to London Paddington to increase capacity on the Chiltern Main Line as there is no room to expand the station at Marylebone.
This scheme has merit.
- The platforms would be connected to the Chiltern Main Line along the route of a partly-disused railway.
- The route could be double-tracked.
- There must be space for at least two new platforms.
- The new platforms could easily handle four tph.
- There may be a case for some new stations.
The scheme could add valuable extra capacity for Chiltern.
A Chiltern Metro
Wikipedia says this about a proposed metro service between Marylebone and West Ruislip stations.
- The Metro would have a frequency of four tph.
- It would call at Wembley Stadium, Sudbury & Harrow Road, Sudbury Hill Harrow, Northolt Park and South Ruislip.
- The service would require a reversing facility at West Ruislip.
- There would need to be passing loops at Sudbury Hill Harrow, and Wembley Stadium.
Given that the Chiltern Metro was first proposed over a decade ago, perhaps the concept could be increased in scope.
- Housing and other developments along the route may suggest that a station further out like High Wycombe might be a better terminal.
- ERTMS in-cab digital signalling is likely to be installed at some time, which would decrease headways between trains and allow more services.
- Electrification is likely in some form before 2040 and this will improve train performance.
- If Neasden station were to be rebuilt, as a comprehensive transport and residential development, I believe that this Metro service should also call at Neasden, as it would complement the West London Orbital Railway.
I believe that a review of the Chiltern Metro may mean, that an improved version is worth building.
Improvements To The Milton Keynes And Clapham Junction Service
I feel that this service could be key in improving services between North London and South London via the West London Line and High Speed Two’s station at Old Oak Common.
Currently, this service is as follows.
- It runs between Milton Keynes and Clapham Junction stations.
- It has a frequency of one tph.
- It calls at Bletchley, Leighton Buzzard, Tring, Berkhamsted, Hemel Hempstead, Watford Junction, Harrow & Wealdstone, Wembley Central, Shepherd’s Bush, Kensington (Olympia), West Brompton and Imperial Wharf stations.
- The service used to extend to South Croydon via Wandsworth Common, Balham, Streatham Common, Norbury, Thornton Heath, Selhurst and East Croydon.
- It uses Class 377 trains.
- It shares parts of the route with the London Overground.
I also think it has various issues and questions with respect to the future.
- The Class 377 trains are only 100 mph units, whereas the outer suburban trains on the West Coast Main Line are 110 mph Class 350 trains, which will soon be replaced by 110 mph Class 730 trains. Do the slower trains cause timetabling problems?
- Is one tph enough?
- The route doesn’t serve High Speed Two at Old Oak Common station.
- Is the service run by the right operator?
- What is the ideal Southern terminal?
These are my thoughts on the various issues.
The Service As A North-South Link
A friend, who lives in South London has told me, that if you go to an event at Wembley stadium the route is busy.
On the other hand, I’ve used it at midday on a Tuesday and found the trains empty.
But developed properly it could connect the following.
- Milton Keynes Central
- Bletchley for the East West Rail Link
- Watford for the West Coast Main Line to the North
- Wembley Central for Wembley Stadium and other entertainments
- Willesden Junction for the North London Line
- Hythe Road for High Speed Two, Crossrail and the Great Western Railway
- Shepherd’s Bush for the shopping.
- Clapham Junction for most of South London and the South of England
It would be a very useful cross-London route to complement Thameslink and the East London Line.
The Frequency
The current Milton Keynes and Clapham Junction has a frequency of one tph.
This may be enough for some parts of the route, as other services also provide services.
But many would argue, that perhaps South of Watford Junction, the service needs to be increased to connect the area to Old Oak Common and Clapham Junction.
I feel that High Speed Two, Crossrail and the Great Western Railway give so much connectivity, that between Clapham Junction and Willesden Junction needs a frequency of at least eight tph.
As the North London Line and the Watford DC Line are working at a frequency of four tph, this could indicate that a four tph direct service Watford Junction and Clapham Junction be ideal. Perhaps, it could continue North to Milton Keynes with a frequency of two tph.
The Trains
I am absolutely certain, that the full service needs to be operated by dual voltage trains, that are capable of running at 110 mph.
The Class 350/1 trains of West Midlands Trains would probably be ideal for the full service.
- They are dual voltage trains.
- They are 110 mph trains.
- They have a long distance interior.
They are being replaced with new Class 730 trains, so would be available.
If some services were running only as far North as Watford Junction, these could be either Class 378 or Class 710 trains of the London Overground.
The Connection To The West London Line And High Speed Two
This map from Wikipedia by Cnbrb shows the latest iteration of the lines at Old Oak Common station.
Note.
- The green route is taken by the Milton Keynes and Clapham Junction trains.
- The bright blue is High Speed Two.
- The purple is Crossrail.
- The orange is the Overground
- Hythe Road station is proposed for the West London Line to connect to Old Oak Common station for High Speed Two.
- Hythe Road station will have a bay platform to turn trains from the South.
- Old Oak Common Lane station is proposed for the North London Line to connect to Old Oak Common station for High Speed Two.
But where is the connection between the Milton Keynes and Clapham Junction service and Old Oak Common station for High Speed Two?
- Access from the South is not a problem as the Overground can be used to Hythe Road station.
- Extra services from the South can be run to and from the bay platform at Hythe Road station.
- Access from the East is not a problem as the Overground can be used to Hythe Road station.
- How do passengers go between say Wembley Central and Heathrow?
In addition for access from the West is the Overground can be used to Old Oak Common Lane station.
But as things stand at the moment the Milton Keynes and Clapham Junction service bypasses Hythe Road station and the only ways to go from Milton Keynes to Old Oak Common station for either High Speed Two, Crossrail or the Great Western is to do one of the following.
- Change to the Watford DC Line at Watford Junction, Harrow & Wealdstone or Wembley Central and then change to the Overground at Willesden Junction for either Old Oak Common Lane or Hythe Road station.
- Continue South to Shepherd’s Bush station, cross over to the other platform and then come back to Hythe Road station.
- Go via Euston station. OK for High Speed Two, but not for Crossrail or the Great Western.
They cannot be serious!
I hope that there is a cunning plan to enable the Milton Keynes and Clapham Junction service to connect.
Whilst on the subject of connections at Old Oak Common, where is the promised connection of Crossrail to the West Coast Main Line?
Were all these connections just kicked into the long grass and quietly forgotten, as they were deemed too difficult and/or expensive?
I think serious questions need to be asked about the design of Crossrail and High Speed Two at Old Oak Common.
Why weren’t Crossrail and High Speed Two designed to connect directly to the London Overground at Willesden Junction station perhaps by the use of a North South people mover serving the following lines?
- Bakerloo, Watford DC, West Coast Main and West London Orbital Lines at a rebuilt Harlesden station.
- London Overground at the high-level Willesden Junction station.
- High Speed Two
- Crossrail and the Great Western Railway
- The new Chiltern platforms.
- Central Line at East Acton station.
Note.
- Hythe Road and Old Oak Common stations would not be needed.
- The Milton Keynes and Clapham Junction service would call additionally at the rebuilt Harlesden station.
The current design of Old Oak Common stinks like a horse designed by a committee!
The Northern Terminal
I suggested earlier that some trains use Watford Junction and others use Milton Keynes Central.
Both stations have the capacity and the connectivity.
The Southern Terminal
In the last ten years, South Croydon, East Croydon and Clapham Junction have been used as the Southern terminal.
Thameslink seems to have chosen its various terminals to satisfaction of the travelling public, so perhaps the same method or personnel should be used.
The Operator
The Gibb Report said that this service should be transferred to the London Overground and I wrote about this proposal in Gibb Report – East Croydon – Milton Keynes Route Should Be Transferred To London Overground.
This is one suggestion, but I do wonder, if it should be transferred to West Midlands Trains and run in conjunction with their West Coast Main Line services.
- The service needs 110 mph trains.
- Timetabling and operation should be easier.
- London Overground trains don’t have a long-distance interior.
On the other hand, trains running between Watford Junction and Clapham Junction would probably be better if they were London Overground trains.
Conclusion
I believe that by using the current network and some modern trains and signalling, the passenger services to the West of the capital can be substantially improved.
A London Overground Replacement For Southern’s East Croydon And Milton Keynes Service
In July 2017, I discussed this suggestion by Chris Gibb in Gibb Report – East Croydon – Milton Keynes Route Should Be Transferred To London Overground.
In an article, in the July 2019 Edition of Modern Railways, , which was entitled ‘710s’ Debut On Goblin, this was this last paragraph.
On the West London Line, TfL is curremtly working with the Department for Transport on options for the devolution of services originally suggested in Chris Gibb’s report on the Govia Thameslink Railway franchise, which could lead to ‘710s’ being deployed here.
It made me think, that further investigation was called for.
An Apology
I apologise, if you think I’m repeating myself.
What The Gibb Report Says
The Gibb Report, says this about the current service between East Croydon and Milton Keynes Central stations.
I believe there is an option to transfer the East Croydon – Milton Keynes operation to TfL and it’s London Overground concession in 2018.
TfL may decide to change the service, for example by not running it north of Watford Junction, or running it to an alternative southern destination other than East Croydon. They could also develop the combined West London line service to better match available capacity to demand.
They would have a number of crewing and rolling stock options, but should be able to operate the service more efficiently than GTR in the longer term, without the involvement of Selhurst.
Selhurst TMD is the depot in South London, where the current Class 377 trains are based.
A few of my thoughts.
The Trains
Using Class 710 trains as suggested in the Modern Railways article, would surely offer a suitable crewing and rolling stock option for the route, if they were based at the convenient Willesden TMD, where the fleet of up to twenty-five dual-voltage Class 710/2 trains are stabled.
The Northern Terminus
Chris Gibb suggested the service might not go past Watford Junction.
I think that could be difficult.
- The longitudinal seating of the Class 710 train, is probably not suitable for outer suburban services North of Watford.
- East Croydon to Watford Junction takes 69 minutes, which is not a good journey time to create an efficient service.
It would also appear to be tricky for a train to transfer between the West London Line and the Watford DC Line.
This map from carto.metro.free.fr shows the complicated track layout in the Willesden Junction area.
Note.
- The two Willesden Junction stations, labelled High Level and Low Level.
- The Watford DC Line, which is shown in black and orange, passing to the North of Willesden TMD. and through the Low Level station.
- The four tracks shown in black are the West Coast Main Line, with Watford to the West and Euston to the East.
- The North London Line to Richmond and the West London Line to Clapham Junction splitting at Wilesden High Level Junction.
The current service between East Croydon and Milton Keynes, is only one train per hour (tph) and uses a succession of flat junctions to take the slow lines to and from Watford.
This is not a good operational procedure and I suspect Network Rail and various train operators, would like to see it discontinued.
So if trains in a new London Overground version of the service, don’t go up the Watford DC Line or the West Coast Main Line, where do they turn back?
Note the siding to the East of the High Level platforms, which is labelled Willesden Junction Turnout.
This is regularly used to turnback London Overground services on the West London Line.
I feel that London Overground will be turning their replacement service in Willesden Junction High Level station.
Current train services at the station include.
- For passengers, who want to go further North, there is a good connection to the Watford DC Line for Wembley Central, Harrow & Wealdstone and Watford Junction stations.
- The Watford DC Line can also take you to Euston.
- The Bakerloo Line between Stonebridge Park and Elephant & Castle via Central London.
- Frequent North London Line services between Stratford and Richmond.
The station has kiosks, coffee stalls, toilets and waiting rooms.
There are certainly worse places to change trains.
The Southern Terminus
Obviously, existing travellers on the route would like to see as few changes as possible.
East Croydon station must be a possibility for the Southern terminus, as it is the currently used.
But East Croydon is a busy station and perhaps it is not a convenient station for trains to wait in the platform.
On the other hand, West Croydon station offers some advantages.
- The station has a long bay platform, which might be long enough for nine or ten cars.
- There is a separate turnback siding.
- It has space to add another bay platform, but this may have been sold to a developer.
- It already has a four tph London Overground service to Highbury & Islington station.
- Using West Croydon avoids the crowded lines to the North of East Croydon station.
It is also managed by London Overground, so the landlord would be co-operative.
How Many Trains Would Be Needed For A West Croydon And Willesden Junction Service?
West Croydon station has two possible routes, that trains could take to Willesden Junction.
- Via Norwood Junction and Clapham Junction in 55 minutes.
- Via Selhust and Clapham Junction in 45 minutes.
These times mean that a two-hour round trip between West Croydon and Willesden Junction should be possible.
Trains required for various frequencies would be as follows.
- One tph – Two trains.
- Two tph = Four trains.
- Four tph – Eight trains.
They would need to be dual voltage Class 710/2 trains, as are now running on the Gospel Oak to Barking Line.
Compare the figures with those for the current East Croydon and Milton Keynes service, which needs four pairs of four-car trains for an hourly service.
What Would Be The Frequency?
I think one, two and four tph are all possibilities!
One tph
One tph would be a direct replacement for the current service. But is it enough?
Services at West Croydon could probably share the bay platform with the existing Highbury & Islington station service.
Two tph
Two tph could be a compromise frequency.
Two tph could probably still share the current bay platform with the Highbury & Islington service.
Four tph
Four tph would be a full Turn-Up-And-Go service,
- It would probably be London Overground’s preference.
- It would give a very passenger-friendly eight tph between Willesden Junction and Clapham Junction stations.
- The two services would call at opposite sides of Clapham Junction station.
- It would give a four tph link between Croydon and High Speed Two.
- Westfield wouldn’t mind all the extra shoppers at Shepherds Bush!
But there could be downsides.
- The service could need an extra bay platform at West Croydon.
- Would it be possible to turn four tph at Willesden Junction?
- Will the train paths be available through South London.
But four tph would probably would be London Overground’s preference.
It will be interesting to see the reasons, why Transport for London choose a particular frequency.
A Trip Between Imperial Wharf And East Croydon Stations
Today, I took a trip between Imperial Wharf and East Croydon stations at around 11:30.
- The train was two four-car Class 377 trains working as an eight-car train.
- After Clapham Junction it wasn’t very busy.
- I was in the last car, which was empty, except for myself.
I came to the conclusion, that an eight-car train was too much capacity for the Southern section of the journey.
I suspect that Transport for London have detailed passenger estimates for this route, so they should be able to determine the frequency and length of replacement trains required.
The Upgraded Norwood Junction Station
In Major Upgrade Planned For Norwood Junction Railway Station, I talked about a plan to upgrade Norwood Junction station.
The idea behind the upgrade is to improve connectivity and capacity in the crowded Croydon area.
If the West Croydon and Willesden Junction service, was routed via Norwood Junction station, the upgraded station would give easy access to both East and West Croydon stations.
Conclusion
I’ve always liked Chris Gibb’s suggestion of the transfer of the service between East Croydon and Milton Keynes stations to the London Overground and I can now start to see flesh on the bones!
At the present time and until better data is available, I think the replacement service should be as follows.
- The Northern terminus should be Willesden Junction.
- The Southern terminus should be West Croydon station, where there are good tram and train connections.
- The route would be via Shepherds Bush, Kensington Olympia, West Brompton, Imperial Wharf, Clapham Junction, Wandsworth Common, Balham, Streatham Hill, West Norwood, Gipsy Hill, Crystal Palace and Norwood Junction.
- Going via Gipsy Hill, rather than the current route via Selhurst, would give access to the connectivity at Norwood Junction.
- The frequency should be four tph.
- Trains will be four- or five-car Class 710 trains.
The benefits would be as follows.
- The rail hubs of Clapham Junction, Norwood Junction, West Croydon and Willesden Junction would be connected together by a Turn-Up-And-Go service.
- The proposed four tph service would need eight Class 710 trains, whereas the current one tph service needs eight Class 377 trains. Would this be better value?
In the future with a connection to High Speed Two in the Old Oak Common area, the benefits would increase.
- There would be a simple interchange with High Speed Two.
- South London from Clapham to Croydon, would get a direct service to High Speed Two.
- There would also be a better connection to Heathrow Airport and other rail services through Old Oak Common.
I think that the connection to High Speed Two trumps everything else.
The Anonymous Widower 