Is It Bi-Modes And Battery Trains To The Rescue?
This article in Rail Technology Magazine is entitled Further delays to GWML electrification as schemes deferred indefinitely.
The delayed schemes include.
- Bristol Parkway to Bristol Temple Meads
- Bath Spa to Bristol Temple Meads
- Oxford to Didcot Parkway
- Henley Branch
- Windsor Branch
There is no mention of the Marlow Branch or the Greenford Branch.
The article also quotes the Rail Minister; Paul Maynard, as saying.
Introducing newer trains with more capacity in these areas could be done without costly and disruptive electrification,
Is this a meaningless platitude or is there substance behind it?
A mix of Class 801 electric trains and Class 800 bi-mode electro-diesel trains were originally ordered for GWR.
But this is said in the Wikipedia entry for the Class 800 train.
In July 2016, it was announced that GWR’s intended fleet of Class 801s were to be converted from pure EMUs to bi-mode units. Subsequently these were reclassified as Class 800s.
So will we see bi-mode trains working the Bristol Temple Meads routes, which are numbered 1 and 2 above?
That would certainly allow the Minister to bathe in the glory of a run to Bristol via Bath and back via Bristol Parkway.
Five-car Class 800 trains could also work route 3, thus giving Oxford trains, that would increase capacity and run on electric power between Didcot and Paddington.
But what about the four branch lines; Greenford, Henley, Marlow and Windsor?
Note.
- The Minister used the word newer not new.
- He also said capacity would be greater.
- When I passed the Marlow branch a few weeks ago, it appeared electrification had started.
- All branches are short, with the Marlow Branch the longest at 7.25 miles.
- The Henley Branch has a 50 mph speed limit.
It should also be noted that the Mayflower Line, where the battery train trial was conducted in 2015 is just over eleven miles long.
So would it be possible to fit batteries to the Class 387 trains to fulfil the Minister’s statement?
- The Class 387 trains are very similar to the Class 379 trains used in the trial on the Mayflower Line.
- They are newer with greater capacity, than the current trains on the branch lines.
The answer could be yes! I reported on Rumours Of Battery-Powered Trains in August 2015. At that time Network Rail were calling the trains Independently Powered Electric Multiple Units or IPEMUs.
The possibility also exists that Class 387 trains with batteries could also work the lines between Didcot Parkway and Oxford, Reading and Basingstoke and Reading and Bedwyn.
Network Rail needs to convert a serious loss of face into at least a score-draw!
If the Great Western does use this approach, they’ll only be taking a similar route to the Germans, as I wrote about in German Trains With Batteries.
Slow Line Traffic Into Paddington
I was thinking today, as I came back from my trip from Paddington, that I described in A Low Key Launch Of New Electric Trains, that when all of the new trains are running on Crossrail and the GWR, the slow lines will be very busy.
According to Wikipedia, Crossrail will be running.
- 4tph Abbey Wood – Heathrow Terminal 4
- 2tph Abbey Wood – West Drayton – Peak Hours Only
- 2tph Shenfield – Reading
- 2tph Shenfield – Maidenhead
In addition there will be non Crossrail services on the line.
- 4 tph Heathrow Express
- 2 tph Paddington Main Line – Bedwyn
- 2 tph Paddington Main Line – Oxford
- 2 tph Paddington Main Line – Hayes and Harlington
So that gives eighteen services an hour, with probably all except the Heathrow Express on the slow lines.
As the Shenfield Branch of Crossrail is going to handle 16 tph, 14 tph would seem to be within the capacity of the slow lines to Reading, even leaving some space for freight.
I do wonder that as GWR has ordered forty-five Class 387 trains, which in view of today will probably be run mainly as eight-car trains, for where they are going to add services to the network.
So how many trains will they need for current services?
- 2 tph to Hayes and Harlington – Under half an hour, so 2 trains, or 4 if running as a pair.
- 2 tph to Oxford (stopping) – Two hours, so 8 trains or 16 if running as a pair.
- 2 tph to Bedwyn – 90 minutes, so 6 trains or 12 if running as a pair.
Oxford and Bedwyn will also be served by fast Class 800 long distance trains.
This gives a total of 32 Class 387 trains.
So what happens to the other thirteen trains?
There has been talk of giving some of the trains an IPEMU-capability, which I reported in Rumours Of Battery Powered Trains to run the branch lines to Henley, Marlow and Windsor and the Reading to Gatwick service.
I just wonder, if the Electrostar might have made a good demonstrator for the IPEMU technology, but that an IPEMU based on an Aventra is so much better, that there is little point in creating an Electrostar IPEMU.
Or are Bombardier wanting to get the Aventra fully designed in all its variants before they tackle creating an Electrostar IPEMU?
So how many trains with an IPEMU-capability would be needed for the branch lines and Reading to Gatwick?
- Gatwick to Reading takes 90 minutes, so 6 trains could provide 2 tph.
- 4 tph on the Greenford Branch, would need 2 trains charging at West Ealing.
- 2 tph on the Henley Branch, would need 1 train charging at Twyford.
- 2 tph on the Marlow Branch would need 2 trains charging at Maidenhead. – By a bit of fiddling, the trains might pass at Bourne End or there could be a passing loop.
- 2 tph on the Windsor Branch, would need 1 train charging at Slough.
This adds up to the missing thirteen trains, if you add in a spare. In Modern Railways for June 2016, one paragraph in a larger article gives some news about the progress of Bombardier’s IPEMU technology. This is said.
Industry sources confirm that options for some of the GWR order to be produced as independently powered EMU (IPEMU) variants fitted with batteries for operation away from electrified routes are still being explored. This would enable GWR services to Gatwick Airport and on some of the Thames Valley branches to be worked by ‘387s’ prior to electrification. Any decision to look seriously at this proposal will depend on final electrification timescales being confirmed by Network Rail.
Ordering the number of trains they have means that GWR can offer a workable solution on all routes in the Thames Valley, depending on what Network Rail deign to deliver and if Bombardier come up with an affordable IPEMU solution.
- No electrification, no IPEMU – Use refurbished diesel multiple units.
- Electrification – Use Class 387 trains as electric multiple units.
- No electrification, IPEMU – Use Classs 387 trains in IPEMU mode.
Obviously, if Network Rail decide to electrify any part of the network later, the trains can be driven and controlled accordingly.
I’m also sure, there will be routes in the Bristol area, where a Class 387 train with an IPEMU-capability could be very useful.
A Low Key Launch Of New Electric Trains
This morning at 07:15, I was on the first Class 387 train out of Paddington for Hayes and Hsrlington.
It was a new train of eight coaches, complete with that smell that all new vehicles have for a few weeks.
At the moment GWR only have four Class 387 trains in service, which should be enough for a two trains per hour (tph) shuttle with eight coaches in each service.
But because the new bay platform for the Greenford Branch has not been completed yet at West Ealing station, there are only a few services a day.
This page on the GWR web site gives more details and says this about services in 2017.
From January, all Greenford trains will terminate at West Ealing; as we increase our electric service between Hayes & Harlington and London Paddington to every 30 minutes.
From May, these trains will start running to and from Maidenhead, as we replace our existing diesel fleet.
Does this mean that from January 2017, the Greenford branch will be served by a four tph shuttle? Or will that be later?
The Longest Underwater Electrification In The UK Since The Channel Tunnel
It may only be a tunnel seven kilometres long and a lot shorter than the Channel Tunnel, but the Severn Tunnel has two tracks, which both have to be electrified, so that the Great Western Railway can run electric trains to and from South Wales.
But the Severn Tunnel was built between 1873 and 1886 and it posed various problems during its construction with water ingress and since with operation because of its length, profile and the pumping of constant water. There is a section in Wikipedia, which is called General, which gives more details.
The Severn Tunnel is probably one of those places, sane engineers wouldn’t want to electrify a railway.
So I was interested to read this article in Rail Engineer, which is entitled Preparing For Severn Tunnel Electrification. The article gives this overview of the project.
The electrification project now moves on to probably one of its biggest challenges: the electrification of the 7.012km long Severn Tunnel. The tunnel will be closed to trains between 12 September and 21 October for the work. It is referred to as the “Severn Tunnel Autumn Disruption” or STAD for short and, just to make it a bit more interesting, included in the STAD are the Patchway Tunnels –1.139km Old (Down); 0.057Km Short (Down); 1.609Km New (Up).
Some facts about the tunnel and the work already done.
- More than 76.4 million bricks were used in the construction.
- Between 10 and 20 million gallons of water have had to be extracted every day to prevent flooding.
- There is also a ventilation shaft through which 80,000 cubic feet of fresh air can be forced into the tunnel each minute by means of an eight- metre diameter fan at the top.
- The contractors first had to scarify 2,500 square metres of tunnel lining to remove more than 35 tonnes of soot.
It is not a small job. But at least the tunnel was in better condition than expected.
The article gives a deep insight into how the Severn Tunnel electrification is a collaboration between several major contractors, who are installing a Swiss system from Furrer + Frey called Rigid Overhead Conductor Rail System in the roof of the tunnel. The ROCS system uses a rigid aluminium rail supported on appropriately designed fittings fixed to the roof of the tunnel. There is more on the ROCS system in this article in Rail Technology Magazine.
To makes things more difficult, the engineers have only got thirty-nine days to do the work.
And if it all goes wrong, there are two sets of politicians who will get very angry!
Is The New Bay Platform At West Ealing Opening On August 1st?
I heard a rumour that the new bay platform at West Ealing station was going to open on the first of August, but I have just found a change in the timetable, that could mean that it is true.
If you look at the on-line timetables, you will find the following.
At present the first two trains after 07:00 from Greenford to West Ealing, are the 07:16 and the 07:46, which go on to Paddington in twenty-six minutes.
From the first of August, they are the 07:13 and 07:43 which are shown as only going as far as West Ealing, where you change for Paddington and do the journey in twenty-eight minutes.
The strange thing is that these two trains are the only ones before nine, that require a change for Paddington.
The times of trains from Hayes and Harlington to Paddington appear to change on the first too!
There is also an additional electric service leaving for Hayes and Harlington at 07:18.
Could it be that electric services are starting on the first of August too?
Sorting Out The Late Great Western Electrification
I could have added something like And Other Issues to the title of this post.
An article in the June 2016 Edition of Modern Railways entitled GWR To Order More ‘387s’ starts with the statement.
Govia Thameslink Railway’s fleet of 29 Class 387/1 EMUs is to be retained by the operator and will not be transferred to Great Western Railway, according to industry sources.
It seems that not only do GTR have trouble with their staff and the new Class 700 trains, but also with other train operators too.
So GWR have snapped up the other fourteen ordered by Porterbrook and supplemented this with an order for fifteen new build units.
This means they have got their required 29 trains to go with the eight they ordered some time ago.
Unfortunately, building more Class 387 trains, which would probably help the rolling stock shortage caused by the non-working Class 700 trains, especially as it appears Bombardier has spare capacity, is not on, as changes to crashworthiness regulations mean that these trains can’t be produced after September 2016.
So it’s probably very lucky, that the Great Western doesn’t have much working electrification.
One paragraph in the article gives some news about the progress of Bombardier’s IPEMU technology. Thios is said.
Industry sources confirm that options for some of the GWR order to be produced as independently powered EMU (IPEMU) variants fitted with batteries for operation away from electrified routes are still being explored. This would enable GWR services to Gatwick Airport and on some of the Thames Valley branches to be worked by ‘387s’ prior to electrification. Any decision to look seriously at this proposal will depend on final electrification timescales being confirmed by Network Rail.
Using IPEMUs on the routes mentioned would be a sensible move.
It would also appear from the article that GWR is going to order more Class 800 bi-mode trains from Hitachi.
There is also this article in Rail Technology Magazine entitled Perry Confirms New GWR Class 801 Will Be Bi-Mode.
As the Class 801 electric train and the Class 800 bi-mode train are more of less identical except for the diesel engines, conversion between the two types is possible.
A First Glimpse Of A Great Western Railway Class 387 Train
This article on the Rail Journal web site is entitled Bombardier Opens Derby Train Testing Facility.
There is a picture of a Great Western Railway Class 387 train in the new dark green livery.
Intriguingly, the train does not have a number, so is it one of those that have served on Thameslink or a new build after the Gatwick Express order has been completed?
Great Western Railway’s New Train
Great Western Railway have a new train.
Certainly, as they always do, this InterCity 125 has scrubbed up well!
Demolition Has Started For The New Platforms At Oxford Station
Demolition has finally started of the old parcels office at Oxford station to create the two platforms for the Chiltern service to the station.
I can’t see this being a large project, as hopefully, it will just be creating the platforms and making sure there are shelters and the other platform details.
Wikipedia says this about the two new platforms.
The scheme also includes two new platforms at Oxford station, to be built on the site of the disused parcels depot. The new platforms will initially be five carriages in length, but provision will be made for them to be extended southwards to eight carriages.
Will they be in Chiltern’s or Great Western Railway’s house style?
As Chiltern Railways coaches are in sets of six, will these platforms be built initially to handle eight coaches? It would seem to be prudent!
Also according to this section in Wikipedia, services will start in December 2016.
Main Line Electrification Between Reading And Didcot
I took these pictures of the electrification on the main lines between Reading and Didcot.
All the masts seem to be erected, but there is stil quite a lot of wires to add.
The Anonymous Widower 