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GWR West Fleet IEP Cascade Update

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JamesRowden

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Also, how do current TOCs which split and join en-route cope with delays? Such as Southern (if they're running any trains that is :lol:)?

I experienced this at Haywards Heath on Saturday. Haywards Heath has 4 platforms on a double track railway and there are 2 splits/joins in each direction per hour. This means that a front portion can wait for a rear portion without blocking the line. On this occasion the front portion of the train was late for the joining. I was traveling in the rear portion. We approached Haywards Heath slowly, the joining took place, we made an additional stop at Three Bridges and were 10 minutes late.
 
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swt_passenger

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It would be interesting to have some real statistics from a TOC about the proportion of their delay minutes that comes down to failed joining, because it is regularly posted that it is a massive problem, that NR don't like it, etc etc.

Yet it carries on anyway?
 

The Ham

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It would be interesting to have some real statistics from a TOC about the proportion of their delay minutes that comes down to failed joining, because it is regularly posted that it is a massive problem, that NR don't like it, etc etc.

Yet it carries on anyway?

The times I've seen it (on SWT's services) if anything it allows the TOC to make up time, as the joining/splitting is seamless even though there are a few extra minutes allowed in the timetable for it to happen.
--- old post above --- --- new post below ---
Well I know exactly how they will get around it, they will put some mega padding in the timetable.

...which will be more than offset by the faster journey times and the need for less time at each station for the slam doors being left open and someone having to go and shut them. (i.e. add in 10 minutes of padding on a London Cardiff service and the journey time will still be 10 minutes faster than it is today!)

As such it will not be a problem.
 

tbtc

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Also, how do current TOCs which split and join en-route cope with delays? Such as Southern (if they're running any trains that is :lol:)?

It would be interesting to have some real statistics from a TOC about the proportion of their delay minutes that comes down to failed joining, because it is regularly posted that it is a massive problem, that NR don't like it, etc etc.

Yet it carries on anyway?

True.

It's probably easier to list the TOCs that don't have scheduled services joining/splitting on a daily basis than the ones who do.

VTEC certainly don't, but I'd suggest a majority of TOCs seem to cope with this perfectly well - despite the latest warnings of doom from people who seem to find something different to complain about IEP on a weekly basis (have we done the steep floors recently... what about there being too much space taken up by bikes and too little space available for bikes?).

What exactly is the problem with 9 car trains going between Bristol and Weston Super Mare considering they will likely need that capacity between London and Bristol? I don't see anyone complaining about HST's running to Weston at the moment? Have we really got into another Voyager like situation where some of the brand new shiny trains we have ordered will be too short?

Running like this would require more carriages to be built.

It's also worth pointing out that some of the IEP critics have moaned about the added weight of diesel tanks being part of trains running "under the wires", yet seemingly have no problem running several empty carriages all the way to Hereford/ Gloucester etc.

A few hundred seats should be fine for Bristol to Weston super Mare, surely?
 

LNW-GW Joint

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It would be interesting to have some real statistics from a TOC about the proportion of their delay minutes that comes down to failed joining, because it is regularly posted that it is a massive problem, that NR don't like it, etc etc.
Yet it carries on anyway?

It seems to work OK at Chester for joining/splitting Voyagers, which is pretty close to the intended IEP 5/10-car operation.
But they do allow 7-10 minutes to do it, though something like 3 minutes is often achieved.
Chester is a relatively quiet place to do it though. Oxford is a very poor place to join/split/switch traction, being very busy and with only 2 available platforms.
 
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swt_passenger

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Oxford is a very poor place to join/split/switch traction, being very busy and with only 2 available platforms.

But that is intended to change fairly shortly? AIUI a down loop will be available for through trains in the initial phase.
 

Failed Unit

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Most joining splitting services I have used seem to have the signal headway as the biggest restricting factor. I have once in my life had a delay at Faversham when the units arrived in the wrong order. Even then we were on the move within 2 minutes of it arriving.

I know some TOCs have less work to do than others such as Great Northern which don't have to bother with opening / closing interconnecting doors (I have never understood why they don't bother on the 317s) but I have had more failures on services that portion work because of staff availabilty (on the platform at the station the action takes place at) rather than technical problems.
 

Dave1987

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...which will be more than offset by the faster journey times and the need for less time at each station for the slam doors being left open and someone having to go and shut them. (i.e. add in 10 minutes of padding on a London Cardiff service and the journey time will still be 10 minutes faster than it is today!)

As such it will not be a problem.

But the fact they are such hugely long coaches with narrower ends means that dwell times won't be reduced that much. Plus the whole point is to make journey times faster, not just use the timetable padding differently.
--- old post above --- --- new post below ---
True.

It's probably easier to list the TOCs that don't have scheduled services joining/splitting on a daily basis than the ones who do.

VTEC certainly don't, but I'd suggest a majority of TOCs seem to cope with this perfectly well - despite the latest warnings of doom from people who seem to find something different to complain about IEP on a weekly basis (have we done the steep floors recently... what about there being too much space taken up by bikes and too little space available for bikes?).



Running like this would require more carriages to be built.

It's also worth pointing out that some of the IEP critics have moaned about the added weight of diesel tanks being part of trains running "under the wires", yet seemingly have no problem running several empty carriages all the way to Hereford/ Gloucester etc.

A few hundred seats should be fine for Bristol to Weston super Mare, surely?

I do apologise that I've not been a massive fan of this insanely expensive project (that's got even more expensive with converting all to bi-modes but the DFT won't say how much more because it's probably embarrassing). Or is it a forum rule that we have to all be fans of the IEP project.:roll:
 
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Philip Phlopp

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But the fact they are such hugely long coaches with narrower ends means that dwell times won't be reduced that much. Plus the whole point is to make journey times faster, not just use the timetable padding differently.

Longer dwell times owing to vehicle length will be countered by fewer standing passengers in aisles delaying passengers from boarding and alighting, and by the quicker door opening and closing procedures.

IEP isn't HS2, it's not a brand new line with brand new trains, IEP represents an incremental improvement over HST - electric traction increases speeds on the electrified core GWML, longer coaches and passenger carrying driving vehicles provide additional capacity, power doors, digital seat reservations and more generous overhead luggage racks all speed up boarding.

It moves things on a little bit - bit faster service, bit more capacity, few more journey options, bit more flexibility for TOCs. It's not the cure to all of the railway's faults and the expectations people have for what is simply an HST replacement, are at times quite unrealistic.

None of the other proposed solutions, none of the other wishful thinking, none of the other plans DfT, ORR and countless NR and TOC representatives sat through does quite so much as IEP quite so well. There were proposals which were better in some respects but they tended to be far worse in others.
 

Harbornite

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Hopefully Network rail will one day be able to start implementing their wish of 140mph on parts of the routewith ERTMS etc. Correct me if I'm wrong but that is the long-term intention?
 

JamesRowden

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But the fact they are such hugely long coaches with narrower ends means that dwell times won't be reduced that much.

A 5+5 SET will have 20 doors for passengers to get on/off at a station where as a 2+10 HST (which would be about the same length but probably wouldn't be practical for performance reasons) would only have 19 (I'm excluding the door for the bycycle space).
 
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LexyBoy

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Don't they have only one passenger door per side on one of the driving cars (the other being staff access for the kitchen I think?), making it 18 for the 2x5 IEP? The 10 car HST would have 18 or 19 depending on whether it has a full or mini-buffet.

There'll probably be long dwell times at first as bemused passengers try to work out how to open the window, then when they realise they can't, start to panic and barge through to the next carriage to see if the door is open there :)
 

The Ham

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But the fact they are such hugely long coaches with narrower ends means that dwell times won't be reduced that much. Plus the whole point is to make journey times faster, not just use the timetable padding differently.

My post wasn't a serious suggestion that they would add in 10 minutes of padding, rather it was to point out that even if GWR did what you were suggesting (i.e. adding more padding) even allowing for DOUBLE what you feared would cause delays it would still allow the same amount of time to be made up due to better journey times.

If this was being proposed for every service then you may have a bit of a point, however it will only impact a select number of services and only services which are joining (so on that account alone less than 50% of services) and also only at times of disruption when delays are greater than 5 minutes (otherwise some to all of the lost time could be made up by faster running and/or shorter dwell times either at the joining station or along the route)

Just on the point on the number of services which this could affect, it will only be those services which are joining (which as pointed out above) will be at most 50% of all services run by 80x's, however it can only be those services which are run by 5 coach units. Given that 2/3's of the fleet are 5 coach trains at most that puts the total number of services at 1/3 of all services, however that doesn't allow for any of the 5 coach units being run in pairs. As such if you assume that 1/3 of all the 5 coach units are running as pairs at any given time then you are down to 30% of the total fleet meaning that you are looking at 15% of all services run by 80x's which COULD be impacted by a train running late by over 5 minutes (which is an unlikely event).

If we go further and include the whole of the Thames Valley EMU's as well then it falls to about 11% of all services into Paddington MAY (on a bad day) suffer from some form of overloading due to not being able to join up. Based on the 90% performance for the High Speed trains, that would imply (all things being equal, which they are not as often it is a few bad days a year that cause most of the problems) that about 1% of all services (or one in 100 services, which based on 2tph over a 15 hour daily timetable would mean that two service a week would be affected, given that most passengers only use 10 out of about the 200 services which would be run over a week means the likelihood of your train being impacted would be very low) which however you look at means that it's not such a big problem as you make out.

Given that the 80x's (when running full length) have an increase in passenger seats of 18% over the HST's and the 5 coach sets are about 60% of that of a HST and any loss in capacity due to only being able to accommodate 60% of passengers compared to a HST on a few services is more than made up by the remaining services being able to carry more passengers than a HST.

As such are you seriously saying that it is better to run a train which can carry (simplified to demonstrate the point) 100 passengers (i.e. a HST) rather than 118 passengers because, sometimes if something goes wrong some trains may only be able to carry 60 passengers. As like that is going to make life so horrendous for those on the train that can carry 60 people (on the very few times that it happens) that means that they would rather not have the extra space the rest of the time.
 

Dave1987

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Longer dwell times owing to vehicle length will be countered by fewer standing passengers in aisles delaying passengers from boarding and alighting, and by the quicker door opening and closing procedures.

IEP isn't HS2, it's not a brand new line with brand new trains, IEP represents an incremental improvement over HST - electric traction increases speeds on the electrified core GWML, longer coaches and passenger carrying driving vehicles provide additional capacity, power doors, digital seat reservations and more generous overhead luggage racks all speed up boarding.

It moves things on a little bit - bit faster service, bit more capacity, few more journey options, bit more flexibility for TOCs. It's not the cure to all of the railway's faults and the expectations people have for what is simply an HST replacement, are at times quite unrealistic.

None of the other proposed solutions, none of the other wishful thinking, none of the other plans DfT, ORR and countless NR and TOC representatives sat through does quite so much as IEP quite so well. There were proposals which were better in some respects but they tended to be far worse in others.

Philip I completely respect your points of view but I considering the sheer cost of these trains it should be absolutely perfect with massive gains in performance and capacity. Just moving things on a little bit is frankly a bit ridiculous when other lines move things on a little bit for far far cheaper. I mean the PAC were scathing over the costs of the project.
--- old post above --- --- new post below ---
My post wasn't a serious suggestion that they would add in 10 minutes of padding, rather it was to point out that even if GWR did what you were suggesting (i.e. adding more padding) even allowing for DOUBLE what you feared would cause delays it would still allow the same amount of time to be made up due to better journey times.

If this was being proposed for every service then you may have a bit of a point, however it will only impact a select number of services and only services which are joining (so on that account alone less than 50% of services) and also only at times of disruption when delays are greater than 5 minutes (otherwise some to all of the lost time could be made up by faster running and/or shorter dwell times either at the joining station or along the route)

Just on the point on the number of services which this could affect, it will only be those services which are joining (which as pointed out above) will be at most 50% of all services run by 80x's, however it can only be those services which are run by 5 coach units. Given that 2/3's of the fleet are 5 coach trains at most that puts the total number of services at 1/3 of all services, however that doesn't allow for any of the 5 coach units being run in pairs. As such if you assume that 1/3 of all the 5 coach units are running as pairs at any given time then you are down to 30% of the total fleet meaning that you are looking at 15% of all services run by 80x's which COULD be impacted by a train running late by over 5 minutes (which is an unlikely event).

If we go further and include the whole of the Thames Valley EMU's as well then it falls to about 11% of all services into Paddington MAY (on a bad day) suffer from some form of overloading due to not being able to join up. Based on the 90% performance for the High Speed trains, that would imply (all things being equal, which they are not as often it is a few bad days a year that cause most of the problems) that about 1% of all services (or one in 100 services, which based on 2tph over a 15 hour daily timetable would mean that two service a week would be affected, given that most passengers only use 10 out of about the 200 services which would be run over a week means the likelihood of your train being impacted would be very low) which however you look at means that it's not such a big problem as you make out.

Given that the 80x's (when running full length) have an increase in passenger seats of 18% over the HST's and the 5 coach sets are about 60% of that of a HST and any loss in capacity due to only being able to accommodate 60% of passengers compared to a HST on a few services is more than made up by the remaining services being able to carry more passengers than a HST.

As such are you seriously saying that it is better to run a train which can carry (simplified to demonstrate the point) 100 passengers (i.e. a HST) rather than 118 passengers because, sometimes if something goes wrong some trains may only be able to carry 60 passengers. As like that is going to make life so horrendous for those on the train that can carry 60 people (on the very few times that it happens) that means that they would rather not have the extra space the rest of the time.

I understand where you are coming from but I understand how things actually happen in the real world on the operation railway. I've seen trains that should really be 8 or even 12 cars that are run as just a 4 car because control believe they can get away with it and the train is wedged. Yes not every train needs to be full length but I'm sure passengers won't be too please if they were used to a full HST and then end up with a packed 5 car for whatever reason. And these trains are going to cost so much to use I'm sure they will push it as much as they can. Commuters are the main target because that's where the votes are for the politicians.
 

BestWestern

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Presumably then we'll see a 401XX TSB 'mini buffet', a 423XX 'coach C' with disabled facilities, a 44XXX TGS, and either a 42XXX TSO or perhaps a 425XX composite standard/first.
 

47802

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Presumably then we'll see a 401XX TSB 'mini buffet', a 423XX 'coach C' with disabled facilities, a 44XXX TGS, and either a 42XXX TSO or perhaps a 425XX composite standard/first.

As these trains are effectively DMU substitutes and No GWR DMU's in the South West have 1st Class I cannot really see why there would be any 1st class. With power doors will they even need a TGS either perhaps a modify the Mini Buffet or Disabled Loo coach to have a Conductors Office and Cycle Space.
 
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Rich McLean

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As these trains are effectively DMU substitutes and No GWR DMU's in the South West have 1st Class I cannot really see why there would be any 1st class. With power doors will they even need a TGS either perhaps a modify the Mini Buffet or Disabled Loo coach to have a Conductors Office and Cycle Space.

TGS contains the trains safety equipment, as well as other bits (on-board wifi) so unlikely to be removed from the formation.
 

BestWestern

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As these trains are effectively DMU substitutes and No GWR DMU's in the South West have 1st Class I cannot really see why there would be any 1st class. With power doors will they even need a TGS either perhaps a modify the Mini Buffet or Disabled Loo coach to have a Conductors Office and Cycle Space.

It depends entirely on what GWR want to do with the services I suppose, the HSTs allow a significant enhancement over the current provision, if that is deemed desireable.
 

The Ham

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It depends entirely on what GWR want to do with the services I suppose, the HSTs allow a significant enhancement over the current provision, if that is deemed desireable.

Quite, if there is an over provision of seats then why not put in some first class seats which will earn GWR some more income for little in the way of extra cost.

Likewise, depending on the facilities at the stations served then having a buffet could generate extra income, although that would potentially involve higher costs to have and run, so the risk may not result in enough of a return to justify doing it.
 

47802

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TGS contains the trains safety equipment, as well as other bits (on-board wifi) so unlikely to be removed from the formation.

GC HST's seem to manage without a TGS, and they seem to want a train with better Dwell times and a TGS with only 1 passenger access door might slow things down a bit, but I take your point it would probably take more work to get rid of the TGS which they may not want to do.

--- old post above --- --- new post below ---
It depends entirely on what GWR want to do with the services I suppose, the HSTs allow a significant enhancement over the current provision, if that is deemed desireable.

Well yes it does but given they are being used on services previously earmarked for DMU's I doubt it, people seem to have forgotten the fact these will be semi-fast/stopping services where the majority of passengers are likely to be short to medium distance passengers. Like it or not the 802's are for the Intercity Services.
 
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jimm

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I do apologise that I've not been a massive fan of this insanely expensive project (that's got even more expensive with converting all to bi-modes but the DFT won't say how much more because it's probably embarrassing). Or is it a forum rule that we have to all be fans of the IEP project.

Philip I completely respect your points of view but I considering the sheer cost of these trains it should be absolutely perfect with massive gains in performance and capacity. Just moving things on a little bit is frankly a bit ridiculous when other lines move things on a little bit for far far cheaper. I mean the PAC were scathing over the costs of the project.

Or is it your rule that we have to agree with any and every criticism you make in order not to be accused by you of being cheerleaders for IEP?

How is a 125mph train - with the potential for 140mph once the infrastructure is in place to allow it - going to deliver a massive gain in performance over, er, a 125mph train? It will accelerate better, especially using 25kv, but a 'massive' gain would probably need rocket boosters - not popular in Goring, I'd suggest - or a new high-speed line.

As for what constitutes perfection, I would refer you to any discussion on here about seats, where one person's perfect seat is another's idea of an instrument of torture.

Despite the odd grudging concession you make here and there, you seem unable to distinguish between the way the project has been managed by the DfT and the stupidly expensive and complicated way they have ordered trains, and the trains themselves.

Some of us can - and do - make a distinction. I agree with you - and the House of Commons Public Accouts Committee - about the project management and financing side. I have said this a lot, but you still keep ignoring it as it's easier for you to just claim anyone who ventures any criticism, mild or otherwise, of what you say, or asks for further clarification on various points you make, is just a fan of IEP - end of discussion.

It would clearly have been better for DfT to finalise the IEP concept and leave the actual arrangements for ordering and maintaining the trains to the manufacturer, a leasing company and the operators - you know, like the GWR/TPE AT300/802 orders where the costs of the trains appear to bear some relationship to what would be expected in a normal procurement process.

PS: There is nothing unique about the PAC having a pop at the way the government does things, particularly anything involving Private Finance Initiative-type arrangements, but that doesn't seem to have made a blind bit of difference to any government since the 1990s, when the Norwich & Norfolk Hospital, one of the first big PFIs, was swiftly shown to be a disaster for taxpayers but just great for the financiers.

I understand where you are coming from but I understand how things actually happen in the real world on the operation railway. I've seen trains that should really be 8 or even 12 cars that are run as just a 4 car because control believe they can get away with it and the train is wedged. Yes not every train needs to be full length but I'm sure passengers won't be too please if they were used to a full HST and then end up with a packed 5 car for whatever reason. And these trains are going to cost so much to use I'm sure they will push it as much as they can. Commuters are the main target because that's where the votes are for the politicians.

We've all seen trains run short-formed for various reasons. On the railway, like life generally, stuff happens and trains break down. Maybe control were doing the best they could in the circumstances?

I've had to get over a three-car - or even a two-car - Turbo turning up instead of an HST on occasion over the years. By comparison a five-car 800 would be luxury.

The on-the-record statement from GWR that all peak trains in and out of Paddington will be nine-car or 2x5 - in normal circumstances - is clear enough, as is the further clarification Clarence Yard provided above (post 165, page 11). Something will happen at some point that will result in a service operating as a five-car, but providing a train that gets people where they want to go, even if it's a bit cosy, is, I find, usually a better/more popular solution than no train at all.

Quite, if there is an over provision of seats then why not put in some first class seats which will earn GWR some more income for little in the way of extra cost.

Likewise, depending on the facilities at the stations served then having a buffet could generate extra income, although that would potentially involve higher costs to have and run, so the risk may not result in enough of a return to justify doing it.

It seems pretty clear that the first class market is long-distance passengers - and the 802s will still serve that, plus anyone making a local trip who absolutely must have first class who would have to pick out HST services right now anyway - so I can't see what the point would be on short HSTs, where most passengers will be making local trips and the trains will empty out and refill at Exeter and Plymouth in particular.

Similarly, with catering, buffet cars mean extra overheads to maintain the equipment, whereas if it was felt there were some trains/times of the year when a refreshment service might be worthwhile, trolleys would be far more flexible and allow one person to cover different trains by hopping on and off.

After all, if the 158 transfer happens at some point, trolleys would be the only option anyway. Remember the 180s have buffets fitted, but they have never been used by FGW/GWR since the current five sets returned in 2012, with trolleys used instead.
 
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Philip Phlopp

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The problem with IEP and the PAC is that it's questionable whether a manufacturer would have produced a product as good as IEP without guaranteed orders and a financing system which covered a good deal of their upfront development costs.

IEP is, in technical terms, a massive gain, it's a huge leap forward. It must have cost Hitachi many million pounds to develop and it's certainly costing them a vast amount to introduce the product into service before they begin to recoup their initial outlay.

IEP is the first 26m based unit we've introduced into the UK, it's the first bi-mode unit we've introduced into the UK, it's the first electro-diesel design to use 25kV rather than 750V DC, and it's the first diesel unit designed from conception to be convertible to all-electric.

It's one of only three 140mph capable electric units in the UK, it's the first one to meet the MU differentials for timetabling and pathing, and it's the first 125mph/140mph capable unit that will work in multiple on electric away from HS1.

It also has to meet the exceptionally onerous train technical specifications for passenger access, comfort and safety, the equally onerous requirements for reliability and maintainability. The contractual agreements for Agility force (quite correctly) exceptionally high levels of train availability.

The development work for IEP has pushed the Hitachi engineers as hard as they've ever been pushed before - limited by axle loadings and loading gauge, plus all of the TTS, they've produced an exceptional product.

It might not look it, after all, it doesn't look dramatically different to any other longer distance multiple unit, but the mix of capabilities in the package Hitachi has developed is remarkable, and Hitachi's engineers really must take credit.

It's probably worth remembering British Rail colleagues who developed HST 45 years ago, the fact IEP is so good yet only gives incremental advances in capacity and performance is no slight to Hitachi, it's a testament to how good HST was and remains.
 

Dave1987

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Or is it your rule that we have to agree with any and every criticism you make in order not to be accused by you of being cheerleaders for IEP?

How is a 125mph train - with the potential for 140mph once the infrastructure is in place to allow it - going to deliver a massive gain in performance over, er, a 125mph train? It will accelerate better, especially using 25kv, but a 'massive' gain would probably need rocket boosters - not popular in Goring, I'd suggest - or a new high-speed line.

As for what constitutes perfection, I would refer you to any discussion on here about seats, where one person's perfect seat is another's idea of an instrument of torture.

Despite the odd grudging concession you make here and there, you seem unable to distinguish between the way the project has been managed by the DfT and the stupidly expensive and complicated way they have ordered trains, and the trains themselves.

Some of us can - and do - make a distinction. I agree with you - and the House of Commons Public Accouts Committee - about the project management and financing side. I have said this a lot, but you still keep ignoring it as it's easier for you to just claim anyone who ventures any criticism, mild or otherwise, of what you say, or asks for further clarification on various points you make, is just a fan of IEP - end of discussion.

It would clearly have been better for DfT to finalise the IEP concept and leave the actual arrangements for ordering and maintaining the trains to the manufacturer, a leasing company and the operators - you know, like the GWR/TPE AT300/802 orders where the costs of the trains appear to bear some relationship to what would be expected in a normal procurement process.

PS: There is nothing unique about the PAC having a pop at the way the government does things, particularly anything involving Private Finance Initiative-type arrangements, but that doesn't seem to have made a blind bit of difference to any government since the 1990s, when the Norwich & Norfolk Hospital, one of the first big PFIs, was swiftly shown to be a disaster for taxpayers but just great for the financiers.



We've all seen trains run short-formed for various reasons. On the railway, like life generally, stuff happens and trains break down. Maybe control were doing the best they could in the circumstances?

I've had to get over a three-car - or even a two-car - Turbo turning up instead of an HST on occasion over the years. By comparison a five-car 800 would be luxury.

The on-the-record statement from GWR that all peak trains in and out of Paddington will be nine-car or 2x5 - in normal circumstances - is clear enough, as is the further clarification Clarence Yard provided above (post 165, page 11). Something will happen at some point that will result in a service operating as a five-car, but providing a train that gets people where they want to go, even if it's a bit cosy, is, I find, usually a better/more popular solution than no train at all.

Blimey do you actually see what happens in the real world at all and not just looking at ideal world scenarios and read all the PR nonsense that politicians and chief executives come out with? Yes getting people where they want to go is the aim of the game. But you have a fleet of super expensive shiny new trains. So if a passenger ends up on a packed 5 car standing in the vestibule the first thing they are going to think is why didn't they order more trains, this train always used to be 8 carriages long, now its only 5 and I'm forced to stand up and they will complain. And to be excuse of failures won't wash because the like of Claire Perry have been at pains to stress how reliable these trains will be etc.

And control doing the best under the circumstances? You clearly haven't experienced it in the real world with the barmy decisions that are made!
--- old post above --- --- new post below ---
The problem with IEP and the PAC is that it's questionable whether a manufacturer would have produced a product as good as IEP without guaranteed orders and a financing system which covered a good deal of their upfront development costs.

IEP is, in technical terms, a massive gain, it's a huge leap forward. It must have cost Hitachi many million pounds to develop and it's certainly costing them a vast amount to introduce the product into service before they begin to recoup their initial outlay.

IEP is the first 26m based unit we've introduced into the UK, it's the first bi-mode unit we've introduced into the UK, it's the first electro-diesel design to use 25kV rather than 750V DC, and it's the first diesel unit designed from conception to be convertible to all-electric.

It's one of only three 140mph capable electric units in the UK, it's the first one to meet the MU differentials for timetabling and pathing, and it's the first 125mph/140mph capable unit that will work in multiple on electric away from HS1.

It also has to meet the exceptionally onerous train technical specifications for passenger access, comfort and safety, the equally onerous requirements for reliability and maintainability. The contractual agreements for Agility force (quite correctly) exceptionally high levels of train availability.

The development work for IEP has pushed the Hitachi engineers as hard as they've ever been pushed before - limited by axle loadings and loading gauge, plus all of the TTS, they've produced an exceptional product.

It might not look it, after all, it doesn't look dramatically different to any other longer distance multiple unit, but the mix of capabilities in the package Hitachi has developed is remarkable, and Hitachi's engineers really must take credit.

It's probably worth remembering British Rail colleagues who developed HST 45 years ago, the fact IEP is so good yet only gives incremental advances in capacity and performance is no slight to Hitachi, it's a testament to how good HST was and remains.

Ow indeed the HST was a marvel of engineering and the fact they are still in service 40 yrs on is a testament to that. But with the advances in CAD and CFD and the power of computer based modelling I'm not sure I would give them that bigger accolade to be honest. And with regards to comfort the passenger transport groups don't seem overly optimistic about the comfort levels on board. From what I've been told the reason the costs are so high is because of the reliability figures the DFT were demanding in the tech specs along with the rest of the long list. The DFT haven't even released the figures for how much more it's costing to convert the whole lot on GW to bi-mode as I suspect the costs are embarrassingly high.
 

Philip Phlopp

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Ow indeed the HST was a marvel of engineering and the fact they are still in service 40 yrs on is a testament to that. But with the advances in CAD and CFD and the power of computer based modelling I'm not sure I would give them that bigger accolade to be honest. And with regards to comfort the passenger transport groups don't seem overly optimistic about the comfort levels on board. From what I've been told the reason the costs are so high is because of the reliability figures the DFT were demanding in the tech specs along with the rest of the long list. The DFT haven't even released the figures for how much more it's costing to convert the whole lot on GW to bi-mode as I suspect the costs are embarrassingly high.

The reports that came back from the test/press run into Paddington were what the IEP team and Hitachi were hoping for - much quieter than a Voyager and very comfortable was the general consensus for the diesel powered run.

The design was a massive challenge - these units have packaging which would give a few Formula 1 designers some massive headaches. They've had to package engines, fuel tanks, exhaust systems, heating-ventilation-air conditioning, door systems, retention toilets, seat reservation systems and extensive sound and heat insulation materials in the bodyshell, whilst providing more seating than an HST with none of the systems intruding into the furnishable space in the way a Voyager suffers.

That's the difficult part, the designers then need to make sure that replacing, repairing or maintaining all those components is as quick as it can be, so parts need to be mounted on sliding or hinged brackets, they need quick release fittings, which further complicates the packaging. The packaging can't interfere with reliability either, so there needs to be cooling and thermal protection, so one component doesn't melt or freeze another causing a failure.

The costs of converting the all-electric Great Western stock to bi-mode is probably going to be expensive, but some might be cascaded away from the Great Western franchise and replaced with new all-electric IEP stock when the electrification project is finally wrapped up.

The additional bi-mode stock could end up providing further additional capacity at Great Western and/or be cascaded to CrossCountry, East Midlands or East Coast franchises if they require additional capacity. That's something that's getting on for 2022-2024ish though. Capacity requirements could be anywhere at that time.
 

Clarence Yard

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So Dave, exactly which service, let's say weekdays for simplicity, that is currently 8 cars long is going to be 5 cars long in future and in which you are going to have to stand up, day in, day out?
 

jimm

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Blimey do you actually see what happens in the real world at all and not just looking at ideal world scenarios and read all the PR nonsense that politicians and chief executives come out with? Yes getting people where they want to go is the aim of the game. But you have a fleet of super expensive shiny new trains. So if a passenger ends up on a packed 5 car standing in the vestibule the first thing they are going to think is why didn't they order more trains, this train always used to be 8 carriages long, now its only 5 and I'm forced to stand up and they will complain. And to be excuse of failures won't wash because the like of Claire Perry have been at pains to stress how reliable these trains will be etc.

As opposed to the continuous stream of doom-laden nonsense you come out with on here about anything and everything to do with these trains, however trivial/irrelevant it is?

Maybe you could just wait until the trains enter service and the new GWR timetable take shape before blethering on about packed five-car trains yet again. If that is what happens, I'll hold my hands up and admit I was wrong.

But given the pledges about the length of peak services, the number of other new trains arriving in the Thames Valley over the next couple of years, whether GWR or Crossrail stock, I feel reasonably confident I won't have to.

And since when has anyone promised that nothing will ever go wrong with these trains? But the reliability record of the 395s and other Hitachi rolling stock in use in Japan and other places around the world suggests that they should run okay now and again...

And control doing the best under the circumstances? You clearly haven't experienced it in the real world with the barmy decisions that are made!

A two-car Turbo replacing an HST wasn't the greatest idea I have ever seen, but if that train had been an outright cancellation, then there would have been a three-hour hole in the Cotswold Line service past Oxford - one hour since the previous train and two hours until the next one on the timetable. What else should they have done if that Turbo was the only thing they could get hold of in a hurry at Paddington on the Saturday morning it happened?

Ow indeed the HST was a marvel of engineering and the fact they are still in service 40 yrs on is a testament to that. But with the advances in CAD and CFD and the power of computer based modelling I'm not sure I would give them that bigger accolade to be honest. And with regards to comfort the passenger transport groups don't seem overly optimistic about the comfort levels on board. From what I've been told the reason the costs are so high is because of the reliability figures the DFT were demanding in the tech specs along with the rest of the long list. The DFT haven't even released the figures for how much more it's costing to convert the whole lot on GW to bi-mode as I suspect the costs are embarrassingly high.

What were you expecting them to create, a space rocket on rails for the 21st century?

As for 'passenger transport groups', presumably you mean the Railfuture comments - where, as ever, you pounced on the negatives - even though this was a report on a static mock-up in a design studio, as opposed to, er, an actual train, in the metal.

I haven't noticed anyone who rode on 800004 last week having fits of hysterics about their experience - Modern Railways commented on Twitter about ride at 80mph being like a 395, whatever that means, but also said engine noise was less obtrusive than a Meridian, while Paul Clifton of the BBC said the interior was a bit grey - another DfT decision - but also that the train was quiet and smooth.

We know the costs for the extra bi-modes are going to be high - whatever they turn out to be - because it's a variation of a contract that was daft to begin with.

That is not the fault of the trains, or Hitachi - it is down to the way the Government went about acquiring and paying for the trains and the delays to the GW electrification programme. But once again, you seem to be incapable of making any distinction, or apportioning blame where it is due, if it gives you yet another excuse to have a go at anything to do with IEP.
 
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Philip Phlopp

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That is not the fault of the trains, or Hitachi - it is down to the way the Government went about acquiring and paying for the trains and the delays to the GW electrification programme. But once again, you seem to be incapable of making any distinction, or apportioning blame where it is due, if it gives you yet another excuse to have a go at anything to do with IEP.

The cost of modifying the IEP sets is still going to be dramatically cheaper than asking Vossloh/Stadler for a couple dozen diesel electric locomotives, and at the end of the day, we've got a fleet of bi-mode units that can be replaced by all-electric units and re-deployed onto other routes, or used as is.

The cost of flexibility is high on the railway, the cost of not having flexibility is much higher.

We all know there were cheaper (upfront) ways to procure a replacement for HST and IC225 but the proposed solutions were less flexible, had reliability concerns, some were going to need extensive track and signalling modifications and most had operating cost problems.

The early reviews of the Thameslink stock, and the very early reviews of the IEP stock suggest, despite the PACs concern, DfT has managed a really good job (aided undoubtedly by train manufacturers Siemens and Hitachi) of procuring two large fleets of rolling stock.

The risk now is passenger demand, and as ever, I think that will only ever be under-estimated by DfT. It was wrong for Borders Railway just this year, every passenger demand figure for IEP will be wrong, I predict, and I wouldn't be surprised if we need more stock, if GW keeps the bi-modes and procures more all-electric sets and if 5 car sets are lengthened to 9 car sets.
 

CosherB

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.... off topic I know, but I'm sure VTEC would also be delighted to snap up at least a further eight IEP sets ..... ;)
 

tbtc

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I do apologise that I've not been a massive fan of this insanely expensive project (that's got even more expensive with converting all to bi-modes but the DFT won't say how much more because it's probably embarrassing). Or is it a forum rule that we have to all be fans of the IEP project.:roll:

Tee hee hee, what a clever nickname...

Seriously though, Dave, I don't think there are any "fanboys" here ignoring the downsides of IEP, however much you want to suggest that.

Most people seem to be able to understand that the compromises give the least worst new train possible. I wouldn't have funded it like they have, but this may have been a necessary bill to pay to ensure a new manufacturer into the UK market and a new generation of trains (rather than Bombardier churning out more trains based on superannuated BR designs).

If there's a better alternative then do tell. But every one I've seen suggested seems to have bigger problems than the ones that people like you have identified with IEP (e.g. we could avoid bi-mode if we had diesel locos and electric locos, but the time penalty for switching them in stations like Edinburgh Waverley would be considerably more than the few minutes to join/split five coach IEPs... we could run 250m coaches all the way to Hereford/ Penzance etc at all times but the fuel costs would be considerably more than the minor inconvenience of dragging diesel tanks under the wires when trains are on electric mode).

Seriously, what's your better alternative?
 

jimm

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The cost of modifying the IEP sets is still going to be dramatically cheaper than asking Vossloh/Stadler for a couple dozen diesel electric locomotives, and at the end of the day, we've got a fleet of bi-mode units that can be replaced by all-electric units and re-deployed onto other routes, or used as is.

The cost of flexibility is high on the railway, the cost of not having flexibility is much higher.

We all know there were cheaper (upfront) ways to procure a replacement for HST and IC225 but the proposed solutions were less flexible, had reliability concerns, some were going to need extensive track and signalling modifications and most had operating cost problems.

The early reviews of the Thameslink stock, and the very early reviews of the IEP stock suggest, despite the PACs concern, DfT has managed a really good job (aided undoubtedly by train manufacturers Siemens and Hitachi) of procuring two large fleets of rolling stock.

The risk now is passenger demand, and as ever, I think that will only ever be under-estimated by DfT. It was wrong for Borders Railway just this year, every passenger demand figure for IEP will be wrong, I predict, and I wouldn't be surprised if we need more stock, if GW keeps the bi-modes and procures more all-electric sets and if 5 car sets are lengthened to 9 car sets.

I'd agree with almost everything you say, though to be fair to DfT, Borders Rail forecasting was down to Transport Scotland and a whole reinstated railway is a bit different from introducing a new train fleet on an existing route. Experience of other reopenings in Scotland and elsewhere should have taught them that underestimating passenger traffic on that route was a strong possibility using the traditional forecasting methods.

Should seven more nine-car 802s - or nine five-car sets as I think Modern Railways first suggested back in April - be ordered, the fleet GWR ends up with is going to be a deal bigger than simply replacing HSTs on a one-for-one basis.

Lengthening, if required, should be reasonably straightforward, given the IEP specification and all the hard work that, as you have said, Hitachi have put into the whole project. Should First still be the incumbent operator into the 2020s, Mark Hopwood and his team have a pretty good track record over recent years of making convincing cases to DfT for extra rolling stock.
 
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