Major Revamp Of Wales’ Busiest Station Gets Go-Ahead
The title of this post, is the same as that of this article on the BBC.
This is the sub-heading.
Plans for a major revamp of Wales’ busiest railway station have received final approval.
These three paragraphs add more details.
The £140m upgrades to Cardiff Central – including a new brick arch rear entrance, larger concourse and improved waiting areas – aim to support passenger growth and reduce overcrowding.
Better accessibility for people with reduced mobility and additional retail and cycle facilities are also among the changes.
Work is due to start in the middle of next year with the aim of completing most of it within three years.
Note.
- The new entrance on the south side of the station, was opened in September 2015.
- A new Platform 8 was added in 2017, which allows sixteen local trains per hour to run between Cardiff Central and Cardiff Queen Street stations, to serve the twenty railway stations in the city.
- All platforms are bi-directional, which surely improves the flexibility of the rail network in Cardiff City centre.
- Access from the station to the Principality Stadium has improved greatly in recent years.
- The station will remain open during the works.
Cardiff’s railways are a comprehensive mix of local and inter-city trains.
I have some thoughts on Cardiff Station.
The Cardiff & Valleys Day Ranger
This very useful ticket, is the ideal way to explore the Cardiff and Valleys area and I’ve used it several times.
- I usually buy it from one of the two ticket offices in Cardiff Central station, but in one case, I did buy it in Paddington to save time.
- According to Transport for Wales, you can buy it on a local train from the conductor.
- It costs about £16 for an adult, but railcard apply.
I actually find taking a train up the valleys, is a good way to clean out my lungs.
Sights To See On The Cardiff & Valleys Lines
Google AI makes these suggestions.
The Cardiff & Valleys Lines offer historic castles (Cardiff, Caerphilly, Castell Coch), world-class museums (St Fagans, National Museum Cardiff, Big Pit), industrial heritage (Rhondda Heritage Park, Royal Mint Experience), and stunning nature in Bannau Brycheiniog National Park, with scenic railway journeys connecting these sites for history, culture, and outdoor adventure.
Hopefully, when the new Stadler trains and tram-trains are fully operational on the Cardiff & Valleys Lines, someone will write a full guide.
My First Ride On Class 231 Trains – 22nd November 2023
I had several rides on Class 231 trains on a visit to Cardiff.
Note.
- The trans were running on the Rhymney Line.
- Like Greater Anglia’s Class 755 trains, they have pop-out steps and a PowerPack in the middle.
- The trains didn’t appear to be using their pantographs to run on electric, where it existed.
They were very similar to the Class 755 train.
One Of The Worst Train Journeys I’ve Had In The UK Since The 1960s
I started out with a simple objective, in that I intended to go to Cardiff Central station and then explore the Cardiff Valley Lines to look at the progress of the electrification. I had also arranged to possibly have a drink, with an old acquaintance at Rhymney station.
For the first time, I took the Elizabeth Line from Moorgate to Paddington to catch a long distance train. It is so much easier than taking the Underground.
I bought a Super Off Peak Return ticket to Cardiff Central station for £62.15 with my Senior Railcard.
This was the journey I took today.
- I left Paddington on the 10:18 train for Cardiff Central.
- The train arrived at Bristol Parkway at 11:34½.
- Real Time Trains says this about the rest of the journey. “This service was cancelled between Bristol Parkway and Cardiff Central due to a problem with signalling equipment (J3)”
- I was advised by a member of staff, that I wouldn’t be going to Cardiff in the near future and he advised taking a CrossCountry train to Bristol Temple Meads and then going back to London using my Return ticket.
- I left Bristol Parkway at 12:12¼ and arrived in Bristol Temple Meads at 12:20½, after taking the CrossCountry train.
- At Bristol Temple Meads to salvage something of a wasted day, I took a diversion to Severn Beach for the princely sum of £1.95 with my Senior Railcard, arriving back at Bristol Temple Meads at 14:48½.
- I then caught the next train to London, which turned out to be the 16:00, as both the 15:00 and 15:30 were cancelled due to an incident at Didcot.
- The train left Bristol Temple Meads at 16:03 and arrived at London Paddington at 18:00, which was twenty minutes late.
Note.
- I never got to Cardiff.
- If I’d waited at Bristol Parkway and caught the next train, I’d have got to Cardiff at 16:15¼, which would have been four hours later, than if the first train hadn’t been cancelled and had been on time.
I’ve just tried to phone Great Western Railway, but their Contact Us page only gives details of Facebook, Twitter and What’s App. I don’t use any of those!
Conclusion – Added On 5th June 2023
I just received an e-mail saying the cheque will be the post!
Cardiff Northwest Corridor Tram-Train Report Published
The title of this post, is the same as that of this article on Railway Gazette.
This is the introductory paragraph.
Proposals have been published for the development of a tram-train network to serve housing developments on the Northwest Corridor between Cardiff and Llantrisant.
And this paragraph describes the route.
The report looks at a route making use of the existing City Line railway from Cardiff and then following a safeguarded former railway alignment to M4 Junction 33 and Creigiau. Possible extensions could run from Creigiau to Cross Inn and Pontyclun and from Cross Inn to Miskin, Talbot Green, Llantrisant and Beddau.
This map shows the route from the City Line to Creigiau.
Note.
- The City Line to Radyr passing through Waun-Gron Park, Fairwater and Danescourt, which is shown in yellow.
- The South Wales Main Line running across the bottom of the map, which is shown in orange.
- The M4 running Westerly from the North-East corner of the map.
- The A4232 runs North-South and meets the M4 at Junction 33.
- Creigiau is in the North-West corner of the map.
The route of the tram-train would follow the route of the disused railway between the City Line and Creigiau, which is shown as a dotted line, identified with the code LTO.
This second map from OpenRailwayMap shows the area around Junction 33 of the M4.
Note.
- The M4 going across the map.
- The A4232 going South from Junction 33.
- The proposed tram-train line passing to the East of Junction 33.
I suspect that as there is a BP petrol station and a Travel Lodge at the junction, there is a lot of scope to create a comprehensive Park-and-Ride hub for Cardiff, that would be served by the new tram-train.
The third OpenRailwayMap shows the various routes from Creigiau.
Note.
- Creigiau is in the South-East corner of the map.
- Cross Inn is in the middle of the map.
- The South Wales Main Line, which is shown in orange, cuts across the the South-West corner of the map.
The ultimate destinations of Miskin, Pontyclun, Talbot Green, Llantrisant and Beddau all have disused railway tracks leading to Cross Inn.
Serving The Royal Mint
The Royal Mint moved to Llantrisant in the late 1960s and it could be served by the tram-train, as it is to the North of the town, close to a disused railway line.
I must admit, I am very surprised, that a company that employs 10,000 people doesn’t have a nearby railway station.
But then the move of the Royal Mail to Wales was planned by Harold Wilson’s government, which was led by a man, who believed that railways were irrelevant and everybody should have their own cars.
Installation Of OLE Begins In The Valleys
The title of this post, is the same as that of a short article in the September 2021 Edition of Modern Railways.
This is the first paragraph.
Construction of Core Valley Lines (CVL) overhead electrification equipment commenced on 26 July, when the first piles for masts were installed on the Aberdare branch.
The article appears has several small stories buried in the text.
Was This Good Project Management?
This is a paragraph.
The work, between Penrhiwceiber and Mountain Ash took place a year later than Transport for Wales had aimed for prior to the Covid-19 pandemic. However, TfW does not expect significant delays to completion, because the CVL transformation has been rescheduled and revised.
It certainly sounds like it to me that good Project Management has brought the electrification back on track.
I have seen this happen many times over past decades.
Yesterday, at Whitechapel station, I asked one of Crossrail’s Senior Managers, who in the past had used Artemis, if good project management was bringing Crossrail under control. He gave a knowing smile and said that there’s still a lot to do with the trains and gave me the official First Half Of Next Year answer.
But I do wonder, if we’ll get a surprise!
Battery Power To The Rescue
This is a paragraph.
Less overhead line electrification will be needed than was expected when the plans were announced in 2018. Improvements in battery technology enable the battery/electric dock to run further without OLE than had been assumed.
There must be an optimal point, where the extra expense of battery/electric trains are paid for by the savings and disruption of not installing overhead line equipment.
Using The Pandemic To Advantage
This is a paragraph.
TfW also accelerated preparatory works between Radyr and Pontypridd with a three-week blockade last winter taking advantage of low passenger numbers during the second Covid-19 lockdown.
It sounds like another case of good Project Management.
Dealing With A Level Crossing
This is a paragraph.
A crossing on the Rhondda Line will be permanently closed as a result of TfW purchasing the only building accessed by it! Deputy Climate Change Minister Lee Waters said it was more cost-effective for TfW to acquire the former army barracks at Pentre than spend an estimated £450,000 to bring the nearby crossing up to the requisite safety standards.
This Google Map shows the site.
It strikes me, that Transport for Wales will have to be very innovative to find a sensible use for a site hemmed in by the railway on one side and the River Rhondda on the other.
Conclusion
As we do more electrification in the UK, hopefully we’ll get better at it.
Cardiff Queen Street Station
Cardiff Queen Street station is the first station to be refurbished for the proposed South Wales Metro.
Note.
- The station is fully step-free.
- The platforms are wide, which helps interchange or waiting for your destination. See Canada Water on the Overground and St. Pancras on Thameslink.
- Currently, to get to Cardiff Bay station, you need to catch a five trains per hour (tph) shuttle train from Platform 1.
The service pattern is fairly-straight-forward, with the following lines passing though the station from South to North.
- 2 tph – Coryton Line between Radyr and Coryton stations via Cardiff Central.
- 2 tph – Cynon Line between Barry Island and Aberdare stations via Cardiff Central.
- 2 tph – Rhondda Line between Cardiff Central and Treherbert stations.
- 3 tph – Rhymney Line between Cardiff Central and Bargoed stations.
- 1 tph – Rhymney Line between Penarth and Rhymney stations via Cardiff Central.
- 2 tph – Taff Line between Cardiff Central and Merthyr Tydfil stations.
It is said, that to build anything, you need good foundations.
These services through Cardiff Queen Street station, seem to be a good foundation for the South Wales Metro.
The current proposed services through the station after the Metro is completed are.
- 2 tph – Coryton Line between Penarth and Coryton stations via Cardiff Central – Tri-Mode Stadler Flirts
- 2 tph – Cynon Line between The Flourish and Aberdare stations.. – Stadler Citylink Metro Vehicles
- 2 tph – Rhondda Line between Cardiff Queen Street and Treherbert stations – Stadler Citylink Metro Vehicles
- 2 tph – Rhondda Line between The Flourish and Treherbert stations – Stadler Citylink Metro Vehicles
- 2 tph – Rhymney Line between Barry Island and Rhymney stations via Cardiff Central – Tri-Mode Stadler Floirts
- 2 tph – Rhymney Line between Bridgend and Rhymney stations via Cardiff Central – Tri-Mode Stadler Flirts
- 2 tph – Rhymney Line between Penarth and Caerphilly stations via Cardiff Central – Tri-Mode Stadler Flirts
- 2 tph – Taff Line between The Flourish and Merthyr Tydfil stations – Stadler Citylink Metro Vehicles
- 2 tph – Cynon and Taff Lines between Aberdate and Merthyr Tydfil stations via the City Line and Cardiff Central – Stadler Citylink Metro Vehicles.
Summarising services gives these figures.
- 6 tph – To and from The Flourish – Stadler Citylink Metro Vehicles
- 10 tph – To and from Cardiff Central – Tri-Mode Stadler Flirts
- 2 tph – To and from Cardiff Central – Stadler Citylink Metro Vehicles
This Google Map shows Cardiff Queen Street station.
Note.
- The bay platform, which is numbered 1, is in the South East corner of the station. is used for services to Cardiff Bay station.
- There is no North-facing bay platform.
- Northbound trains for Aberdare, Merthyr Tydfil and Treherbert share Platform 5.
- Northbound trains for Bargoed, Coryton and Rhymney share Platform 4.
- Sounthbound trains use Platforms 2 and 3.
I believe that this layout will be changed in the creation of the South Wales Metro.
In an ideal world passengers should have a same-platform or cross-platform interchange between services going in the same direction.
If services going in the same direction shared the same platform, this would meet sixteen tph using two platforms, as two tph will terminate at Cardiff Queen Street station.
Canada Water station on the East London Line of the London Underground in a couple of years will be handling twenty tph.
- The platforms are wide with escalators, lifts and stairs.
- Four Southern destinations and Two Northern destinations are served.
- All services are run by Class 378 trains.
- Access between train and platform is step free and wheel-chairs and buggies can be pushed across.
- The East London Line has modern signalling.
If Crossrail and Thameslink will be able to handle twenty-four tph with digital signalling, I believe a solution can be found so that sixteen tph can pass through Cardiff Queen Street station.
Having seen wide platforms in operation at stations like Canonbury, London Bridge and Whitechapel, I feel an ideal layout at Queen Street station would be to use Platform 3 for all Southbound services and Platform 4 for all Northbound services, with as wide a platform as possible in between.
Consider.
- Passengers from Rymney and Coryton needing to go to The Flourish, would get off the train and get a Citylink for The Flourish.
- Passengers between The Flourish and Cardiff Central would just have to walk across the platform at Queen Street station to change trains.
- Passengers needing a train to Rhoose Airport could choose to change at Queen Street station.
Most waits at Queen Street station would be in a few minutes.
Although, passengers would wait longer for Barry Island, Bridgend and Rhoose Airport.
There is still the problem about what to do with the two tph that from Treherbert that terminate at Queen Street station.
- They could use Platform 2 or 5.
- They could use a new bay platform in the North end of Pltform 3/4.
- They could go through Queen Street station to terminate at The Flourish
- They could go through Queen Street and Central stations to terminate elsewhere.
Option 1 would have problems.
- Every thirty minutes a Citylink would have to cross the busy lines to the North of Queen Street station.
- Passengers wouldn’t always use the same platform for the Rhondda Line.
- Passengers wouldn’t have an easy interchange at Queen Street station.
Option 2 would be better.
- The track layout would be similar.
- Rhondda Line passengers would only have the inconvenience of sometimes walking along the platform.
.Even if this option was not used to turn trains, I suspect it could be built, as it would also be useful for service recovery purposes.
I like Option 3, although it will have the following consequences.
- ,The Flourish would need to be able to handle eight tph on the two proposed platforms.
- Queen Street station would need to be able to handle eighteen tph in both directions.
I suspect that both problems are solvable.
The problem with Option 4 is where do you turn the two extra trains?
I suspect that the Citylink vehicles can only use the City Line after Cardiff Central.
Would it be a good idea or not to run four tph on this route?
I don’t know! But a personable young station man at Queen Street station, said that handling the football can be a problem.
So perhaps more trains going to Ninian Park station might be a good idea.
I write about it in detail in The South Wales Metro and Big Events.
Conclusion
Cardiff Queen Street station has the possibility to be a World Class Metro interchange.
How Can Discontinuous Electrification Be Handled?
On the proposed South Wales Metro, it is proposed to use discontinuous electrification to avoid rebuilding a lot of bridges and other structures.
This document on the KeolisAmey web site details their plans for the new Wales and Borders Franchise.
The document states this about the electrification.
Discontinuous overhead line electrification to 25 KVAC with permanently earthed sections around restricted structures, saving 55 interventions e.g. rebuilding bridges/no need for wire in Caerphilly tunnel.
So how are these interventions avoided?
The Karlsruhe Solution
On the Karlsruhe Stadbahn, similar Citylink vehicles to those proposed for Cardiff need to work on both the main line 15 KVAC used in Germany and the 750 VDC used by Karlsruhe trams.
To isolate the two voltages, a ceramic rod is placed in the catenary. The vehicle’s pantograph just rides across the voltage boundary and the vehicle’s electrical system uses whatever voltage is present.
Bridges On The South Wales Metro
These pictures show some of the types of bridges on the Cardiff Valleys Lines.
They are a real assortment.
- Some station footbridges from the Victorian era with nice castings and decoration, but no much-needed step-free access.
- Some quality brick and stone arch bridges.
- British Rail-era steel bridges, with no architectural merit
- Some modern road bridges in steel and concrete.
I also saw sizeable pipelines over the railway, which would need to be raised.
The greatest number were simple steel bridges like the one at Caerphilly station, designed to get pedestrians and cyclists, who were not using the railway, from one side of the tracks to the other.
I suspect the simplest way would be to erect two standard gantries at a safe distance of a few metres either side of the structure.
Between the two gantries would be an conductor, like this one. that I photographed in the Berlin Hauphtbahnhof.
It would be earthed, so that it offered no danger to life. There could even be extra supports under the bridge.
At each end, it would be connected to the 25 KVAC using a ceramic rod or other insulating device.
The vehicle’s pantograph would then ride from one side of the bridge to the other on its own track without being lowered.
Anything electrified at 25 KVAC would be kept at a very safe distance from the bridge.
In the earthed section, when the vehicle would be receiving no power, the vehicle would automatically switch to battery power. There would be no driver action required, except to monitor it was all working as it should.
As on the South Wales Metro, it appears that all vehicles using the lines proposed to be electrified will have their own onboard batteries, there shouldn’t be any problem.
In some ways, this discontinuous operation is a bit like using your laptop connected to the mains. When say the cleaner pulls out the plug to put in the vacuum cleaner, your laptop switches automatically to the battery.
The Caerphilly Tunnel
The Caerphilly tunnel is over a mile long. This picture shows the tunnel entrance.
It would probably be possible to electrify using a rail in the roof, but why bother if the trains running through the tunnel could go from one end to the other on their own battery power?
Trains could lower the pantograph before entry and then raise it again, when under the electrification at the other end.
This could be performed automatically using a GPS-based system.
I have also had an e-mail, which said this.
As I understand Caerphilly will have a natural bar in it but be much closer to the train roof than would be allowed with a live one.
Now there’s an idea!
A composite or earthed metal rail would be fixed to the roof of the tunnel, so that the pantograph could run smoothly from one electrified section on one side of the tunnel to the electrification on the other side, using battery power all the way.
Cost Savings
In Novel Solution Cuts Cardiff Bridge Wiring Cost, I talked about another method applied in South Wales to avoid rebuilding a bridge.
At this bridge, traditional electrification methods were used, but the need to demolish the bridge was avoided by using advanced insulation and protection measures.
This was my final statement.
Network Rail reckon that the solution will save about £10 million on this bridge alone, as it avoids the need for an expensive rebuild of the bridge.
The savings on this bridge will be higher as it is a large bridge over several tracks, but even saving a million on each bridge in the South Wales Metro is £55 million, which will probably be enough to build much of the infrastructure to extend to The Flourish, which would appear to not need expensive viaducts or electrification.
Should Downhill Tracks Be Left Without Electrification?
I think this may be possible on the South Wales Metro, as vehicles coming down the hills could use gravity and small amounts of battery power.
Regenerative braking would also be continuously charging the batteries.
It would certainly be simpler, than having to constantly swap between overhead and battery power on the descent, where the electrification was discontinuous.
As the lines are going to have a more intensive service, there will be additions of a second track in places to allow trains to pass.
Any electrification that could be removed from the project would be beneficial in terms of building and operational costs.
Other Routes
This post has used the South Wales Metro as an example, but I don’t see any reason, why the discontinous method and that used on the Cardiff Bridge can’t be applied to other bridges and structures over the lines on other routes in the country.
I suspect, that if they’d been used on the Gospel Oak to Barking Line, electric trains would have been running months ago!
Conclusion
Look what you get with thinking, when you have a Bonfire of the Boxes!
Every Pair Of Pictures Tell A Story
This picture on the Rail Technology Magazine website shows a Greater Anglia Class 755 train.
And this picture on the Global Rail News website shows one of the new trains for Transport for Wales.
It is captioned “A Tri-mode unit on the Rhymney Line”.
On another report it is captioned “How a KeolisAmey tram-train will look”.
All trains look very similar and I’m pretty certain that Wales will be getting some Class 755 trains.
Class 755 Trains
Class 755 trains will have the following characteristics.
- 100 mph operating speed.
- Able to work on 25 KVAC overhead electrification
- Able to work using an onboard diesel power-pack.
- Three or more passenger cars.
- Ability to be lengthened by adding extra cars as required.
- Lots of power.
They would be ideal replacements for the current Class 175 trains, as the performance would appear to be similar.
They would also be ideal for services on the following routes.
When running around Birmingham, Cardiff, Crewe, Liverpool and Manchester, they would be able to use the electrification.
So are Keolis/Amey going for a predominantly uniform fleet of perhaps three-car and four-car Class 755 trains outside of the Cardiff Valley Lines, just as Greater Anglia used these trains on their routes without electrification North of Cambridge and Ipswich?
The Borderlands Line
The interesting route is the Borderlands Line between Wrexham Central and Bidston stations.
Currently, to get to and from Liverpool, there is a need to change trains at Bidston.
Merseyrail‘s new Class 777 trains are being built by Stadler.
- They will link Bidston station to Liverpool, where they will call at several stations in a single-track loop tunnel.
- The trains have been designed to work under battery power.
- Both classes of train are likely to be very similar under the skin.
So to eliminate the time-wasting change of train at Bidston station, I wonder if Stadler have designed the Class 755 and Class 777 trains, so that they can both run in the loop tunnel.
The additions needed to the Welsh Class 755 trains, over the Greater Anglian versions would be.
- Ability to use Merseyrail’s third rail electrification.
- Clearance to run in the tunnel with diesel onboard.
- Ability to evacuate passengers in the tunnel, in an emergency.
As Merseyrail have recently rebuilt the tunnel for the new Class 777 trains, I suspect that Stadler can design a Class 755 train, that would be able to avoid the change of train at Bidston.
I’ll Wait For More Information
It would seem prudent to wait for more information.
Discontinuous Electrification For Valley Lines?
The title of this post, is the same as that of an article in the May 2018 Edition of Modern Railways.
The Valley Lines in question are the Cardiff Valley Lines, that fan out from Cardiff Central and Cardiff Queen Street stations in various directions.
- Some of the lines into the valleys are quite steep.
- The lines in the Cardiff area seem to be typical coastal lines and fairly flat.
- The lines are a mixture of single and double track.
- There are various plans to extend some of the branches.
According to the article, it would appear that the current diesel system would be replaced with a system, with these characteristics.
- Light rail vehicles
- Discontinuous electrification
- Use of stored energy.
- Street running is expected to be in the specification for the vehicles to be used, to allow extension in the Cardiff Bay area and perhaps other places.
The proposal would save costs against full electrification and heavy rail.
My observations follow.
Batteries
Batteries will be an integral part of the design of the new rail vehicles.
Powering The Trains
The article states that battery power will be used to power the trains on sections that are difficult to electrify, like the mile-long Caerphilly Tunnel.
Battery power could also be used on level and downhill sections of track up to a few miles, but I suspect on steep uphill sections, electrification will be needed.
Handling Regenerative Braking
I believe that regenerative braking will be employed on the rail vehicles and the energy generated will be stored in the batteries.
The main advantage of this is that it simplifies the power supply to the electrification, as it only has to handle power going to the train.
This less complex electrical system, saves construction costs.
Recovering The Train’s Potential Energy
A train travelling from Cardiff to one of the terminal stations at the heads of the valleys, will need to acquire an amount of potential energy, based on the train’s mass and the height involved. This will be provided by the train’s traction system powered by the electrification and the energy in the batteries.
Coming down the hill, the regenerative braking will control the speed of the train and store any energy generated in the batteries.
This will save on the cost of energy to operate the system.
Charging The Batteries
The batteries will be charged from both the overhead electrification and the regenerative braking.
Extensive simulations of the route on computers would be able to calculate the following, for a wide range of scenarios.
- The size of the batteries.
- The power of the traction motors.
- Where the electrification needs to be installed.
- The maximum power output of the electrification system.
These calculations could also lead to an energy-saving operating philosophy, that could be programmed into the train’s computer system.
I suspect the worst case scenario, would be a train full of the heaviest Welshmen after an important rugby match at the Millennium Stadium.
Electrification
My thoughts on how various sections of track would be electrified follow.
Tracks With A Significant Uphill Gradient
These would need to be electrified, as I doubt battery power on the steepest gradients, would be enough to take a fully-loaded train to the top of the hill.
Electrification would be lighter-weight 750 VDC overhead wires.
The picture shows some of the overhead wires in Birmingham, that are used by the Midland Metro’s Urbos 3 trams.
Tracks With A Downhill Gradient
These would not need to be electrified, as Newton’s friend gravity would do most of the work.
However, as batteries will be fitted, these can have three important functions on downhill stretches of track.
- Give the tram a nudge if needed.
- Restart the train after a stop at a station.
- Store any energy created by regenerative braking.
Note that we could have the unusual situation on a double-track section of line, where the uphill track was electrified and the downhill track was left without electrification.
Level Tracks
These would not need to be electrified, as battery power would be used to propel the train.
Selected Stations
Some stations could need to be electrified to ensure that the service was reliable. These might include terminal stations or those with tricky gradients on either side.
Tracks With 25 KVAC Electrification
Some of the tracks used by the trains on the Cardiff Valley Lines should be electrified with 25 KVAC, by the end of December 2018.
Class 399 tram-trains, that are used in Sheffield can use either 750 VDC and 25 KVAC overhead electrification.
it would probably be a good idea, if the new vehicles on the Cardiff Valley Lines could also use both voltages.
Automatic Pantographs
The pantographs on the vehicles would be raised and lowered automatically to access the electrification. This could even be GPS-controlled and able to be carried out at line speed.
Tram-Trains?
I very much feel, that tram-trains could be used to advantage.
- Some of the Valley Lines are also used by freight trains, so couldn’t be converted to trams-only.
- Tram-trains like the Class 399 tram-train, under test in Sheffield can work on both 750 VDC and 25 KVAC overhead wires.
- Tram-trains can use conventional railway signalling.
- Tram-trains could work on the South Wales Main Line to Newport.
- Modern tram-trains like the Class 399 tram-train have performance, that is about the same as a Class 142 train, which is a Pacer, that works the Cardiff Valley Lines, in large numbers.
- Tram-trains could run on the streets as trams, as they do in Sheffield.
Several manufacturers make tram-trains, which I believe could be suitablefor the Cardiff Valley Lines.
Stadler’s Class 399 Tram-Trains
Nothing is said about the vehicles, that would be used, but I think they need the following characteristics.
- Ability to climb the steepest section of the routes using 750 VDC overhead electrification.
- Ability to store energy.
- Regenerative braking to charge the batteries coming down the hills into Cardiff.
- A similar capacity to a Class 150 train, which is around 150 seats.
- It would be a bonus if they could use 25 KVAC overhead electrification, which will be available on part of some of the routes.
- Ability to raise and lower the pantograph quickly and automatically.
- Ability to run on the National Rail network.
- Ability to run on the street.
This specification is virtually the same as a Class 399 tram-train with the following additions.
- More seats and possibly an extra car.
- Batteries.
Class 399 tram-trains are a UK version of the Stadler Citylink tram-train. The German version is used in Karlsruhe to climb into the hills surrounding the city, on routes that are as challenging as the Cardiff Valley Lines.
So I have no worries about a version of the Class 399 train handling the Cardiff Valley Lines.
I certainly believe after my experience in Karlsruhe, and looking at other Citylink variants, that Stadler can come up with a tram-train for Cardiff based on the Class 399 tram-train.
And Then There’s CAF!
CAF have provided the Urbos 3 trams for Edinburgh Trams and the Midland Metro.
These are modern trams, that will be doing the following in a few years in the Midlands.
- Running on stored energy in the centre of Birmingham and to Wolverhampton station.
- Sharing the South Staffordshire Line with heavy freight on a new route to Merry Hill Shopping Centre.
This sounds like a tram-train with stored energy.
Wikipedia also lists a version of the Urbos family, called an Urbos TT, which is described like this.
The Urbos TT series is built with tram-train technology, connecting existing heavy rail infrastructure directly to urban tramway systems.
This document on the CAF web site, gives more details of Urbos variants, including the Urbos TT.
Looking at the modular nature of the design, you could have a custom-built tram-train tailored to the rail network.
But surely, the major factor with CAF, is that they have recently opened a factory at Newport.
If CAF get the order for the Cardiff Valley Lines, they could do a substantial part of the train building in a factory connected directly to the lines.
Converting The Valley Lines
I think that there are advantages and cost savings to be had, by good design in this area.
Could The Rail Vehicles Be Designed To Fit The Existing Platforms?
The first thing to do would be to design, build and fully test the rail vehicles.
Could the tram-trains be built, so that they fitted all the existing platforms?
- Class 150 trains are 2.82 metres wide.
- Urbos 3 trams on the Midland Metro are 2.65 wide.
If the tram-trains could run without platform modifications, this would be a big cost saving and still allow diesel units to use the lines, at the same time.
Testing The Trains
If the tram-trains were being given a 25 KVAC capability, they could even be tested on the quadruple-track the South Wales Main Line after the line is electrified through Newport.
Electrifying The Lines
It could be that the only sections of the valley lines that will need electrification, are the steep lines into the hills, as all other sections could use stored power or the 25 KVAC, where it exists.
- It would probably be possible to put up the simpler 750 VDC overhead lines during weekend and perhaps longer possessions.
- The electrification could be designed so that it doesn’t interfere with existing services.
- The lines would be converted one at a time.
- ,Note that tram-trains could share track and platform with the current diesel trains working the lines.
If CAF were to get the order surely the Ebbw Valley Line, which could be connected easily to the factory would be the first to be converted.
Conclusion
Obviously, the devil will be in the detail, but it does look like a viable plan will emerge.
I think that if CAF get the order, that they could be big winners.
The Cardiff Valley Lines could demonstrate the following.
- Running on main lines with 25 KVAC electrification.
- Running on 750 VDC electrification.
- Running on batteries.
- Running on lines with steep hills.
- Street running.
- Sharing tracks with freight trains and other passenger services.
- The tram-trains could also connect to Cardiff Airport.
It is a world-class demonstration and test track for innovative tram-trains, designed to cope with challenging rail networks.
With a factory close by at Newport, the selling of the tram-trains to other operators would be a salesman’s dream.
I think there’s more to CAF coming to Newport, than was apparent, when the deal for the factory was signed.
First Qatar Airways Flight From Doha Lands In Cardiff
The title of this post is the same as that of this article on the BBC.
The story is also reported in the Business section of The Times under a title of Direction Of Travel Brings Qatar Airways To Cardiff Airport.
This is the first paragraph from the latter article.
Trade winds from the Middle East have brought a whiff of what a successful Brexit might look like: a 300-seat, state-of-the-art Qatar Airways jetliner carrying a full business-class cabin and several tonnes of freight that has travelled from the 35C of Persian Gulf heat to 10C of Welsh drizzle.
To some it might seem to be a surprising new route.
As a former private pilot, who knew many of the UK’s airports pretty well, Cardiff Airport has many advantages.
- It has a long runway.
- It is not very busy.
- Air traffic control and other services are top class.
- It has a terminal capable of handling a large number of planes.
- British Airways have a large maintenance centre at the Airport.
- Ground transport to Cardiff includes buses and a railway station at Rhoose Cardiff International Airport station.
It could be an airport, that just needs more airlines and passengers to take advantage of its facilities.
The two articles suggest various reasons, why Qatar are going to run a service, that will be daily by July.
- It gives Cardiff a direct link to the world’s fastest growing hub airport at Doha.
- Qatar have lots of investments all over the UK.
- Doha gives direct access flights to to Australia, China, India, Japan, Korea and New Zealand, to give six examples.
- Cardiff Airport wants to develop as a warehousing hub and Qatar Airways is big in freight.
- The export market for Welsh food and other perishables could be transformed.
- The Times reminds us there are nine million sheep in Wales.
The Times also has this memorable phrase.
Quite why the flights have been launched has as much to do with Welsh lamb as it does with not being Bristol.
But I think there are other reasons.
New Routes For Qatar Airways To North America
Look at Qatar Airways routes to North America.
- They serve mostly Eastern seaboard destinations from Doha.
- Chicago and Los Angeles are also served from Doha, but they are long flights of over sixteen hours.
- San Francisco, Seattle and Vancouver are not served.
So would Cardiff with its top-class facilities make an excellent hub for Qatar Airways?
Would a pos-Brexit UK be free to allow Qatar Airways to run services from Cardiff to selected destinations in North America?
Remember, it’s also about freight!
Improved Rail Access
This Google Map shows the Airport.
Note.
- Rhoose Cardiff International station is South of the Airport at the bottom of the map.
- The main terminal is on the North side of the Airport.
- The Vale of Glamorgan Line through the station and then skirts past the Eastern end of the runway on its way to Cardiff.
- The Vale of Glamorgan Line is double-track with sections of single-track.
- The Vale of Glamorgan Line was scheduled to be electrified.
It would appear that providing better passenger and freight access would not be the most challenging of problems, if they were to become needed in the future.
Improved Passenger Services
The current service at Rhoose Cardiff International station is as follows.
- An hourly service to Bridgend.
- An hourly service to Cardiff Central, Cardiff Queen Street and Aberdare.
- On Sundays the service is only two-hourly.
The service needs to be improved.
It would be possible to run a service from Cardiff to Swansea along the Vale of Glamorgan Line.
- The service would call at Rhoose Cardiff International station.
- The service could be run by trains designed for an airport service.
- The service would connect to all the Cardiff Valley Lines at Cardiff Central station.
- The service could be extended at the Western end to Llanelli and Fishguard.
- The service could be extended at the Eastern end to Newport, Bristol Parkway and Bristol Temple Meads.
If bi-mode or diesel trains were to be used no new infrastructure would be needed.
Two trains per hour are needed and may be possible, but it might be necessary to find a solution to the two single-trac sections of line.
Freight Services
After reading, the two articles, I’m convinced that both Cardiff Airport and Qatar Airways are backing the use of the airport as a freight hub.
But all freight would have to leave the airport by truck, as there is no rail connection.
Because of the closeness of the Vale of Glamorgan Line to the airport, it would be possible to create a high-quality cargo-handling facility, with rail access.
In The Go-Anywhere Express Parcel And Pallet Carrier (HSPT), I proposed using four-car Class 321 trains as parcel and pallet carriers.
- These could serve anywhere in the UK from Cardiff Airport.
- If from the Airport to Cardiff were to be electrified, electric freight could go fast to London and the South East.
- Cardiff could be used as an alternative freight hub,, for an over-crowded Heathrow.
I shall be interested to see how Cardiff Airport develops a cargo terminal..
Conclusion
Qatar Airways may have more money than Croesus, but they seem to be spending it wisely, in developing a route to Cardiff.
The Anonymous Widower 