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DART+ (DART Expansion)

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Comments

  • Registered Users, Registered Users 2 Posts: 3,097 ✭✭✭Citizen  Six


    Irish Rail have access to live information of the trains location and consist, via Nexala. The use of that information is the issue. As far as I'm aware, signallers don't have access to that yet, but they will when the new system comes online at NTCC.



  • Registered Users, Registered Users 2 Posts: 2,412 ✭✭✭KrisW1001


    It is transformational, because it's bringing DART frequency and capacity to the other commuter lines



  • Registered Users, Registered Users 2 Posts: 1,505 ✭✭✭p_haugh


    I right, I though you meant how long till it's due. Yes, knowing the length of the train would be handy!

    I was in Japan the other month, and they even had it marked out on the platform where to board at each carriage. At stations with differing train types calling at it, there were different colour coded marks on the platform for each type of train.



  • Registered Users, Registered Users 2 Posts: 1,505 ✭✭✭p_haugh




  • Registered Users, Registered Users 2 Posts: 3,097 ✭✭✭Citizen  Six


    I've seen that in France with the TGV too. Great help when boarding a train.



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  • Registered Users, Registered Users 2 Posts: 3,925 ✭✭✭Beta Ray Bill


    Do they have dates for testing?
    I'd love to go out and have a look



  • Moderators, Computer Games Moderators, Recreation & Hobbies Moderators Posts: 10,773 Mod ✭✭✭✭CatInABox


    And the Japanese had a good laugh at myself and my wife sanding around like gombeens, while they all stood in the various lines. Very politely allowed us to board after they saw I realised that we were totally skipping, but I'd clearly made their day with my stupid look and realisation 😂



  • Registered Users, Registered Users 2 Posts: 200 ✭✭ArcadiaJunction


    that's all very good, but if they experience multiple issues just because Alstom is taking care of support and parts is no good if one or multiple failures occur during rush hour. Contract or not, they still have to be withdrawn from service and there seems to be a hell of a lot of bells and whistles to potentially go wrong. Especially with a fleet of this size. That new bogie system leaves me uncomfortable if I am honest about it. It's radical no matter how you look at it. Again, I hope I am being pessimistic and they are fantastic in actual service.



  • Registered Users, Registered Users 2 Posts: 200 ✭✭ArcadiaJunction


    but the DART LHB DMUs and Luas Trams were established and well proven technology when introduced. Both basically risk-free from a technical standpoint. These are new tech.



  • Registered Users, Registered Users 2 Posts: 2,412 ✭✭✭KrisW1001


    The bogie design is not new to this train, it looks like they’re a feature offered on the X'Trapolis family trains since at least 2009 (Article here describes the same arrangement: Alstom unveils X'trapolis UK | News | Railway Gazette International ).

    The battery technology is really all that’s "new" for the DART+ trains.



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  • Moderators, Science, Health & Environment Moderators Posts: 20,358 Mod ✭✭✭✭Sam Russell


    Did not stop the Luas trams getting stuck on the ramps when they were etended.



  • Registered Users, Registered Users 2 Posts: 72,751 ✭✭✭✭L1011


    That type of bogie is extremely common already.



  • Registered Users, Registered Users 2 Posts: 4,366 ✭✭✭goingnowhere


    Not so the LHB fleet was uber high tech train of its day with a solid state hard coded PLC style control. The traction electronics took a fair time to tweak as they blew up thyristors regularly in the early days and had to re engineer how the safety circuits worked and of course the tweaks to stop the EMI put out which killed long wave radio reception. ATP and radio did work out of the box though modifications were made. The UK were still building 1940's era camshaft control DC trains while we had state of the art GTO chopper drive.

    Luas was proven and effectively a stock product (part built at the same factory as the LHB fleet…)



  • Registered Users, Registered Users 2 Posts: 4,366 ✭✭✭goingnowhere


    Its important to note all the liability currently lies with Alstom, the train remains owned by Alstom until such time that it gains CRR certification and Irish Rail accept it into traffic.

    The 15 year support contract is there, and this is the carrot and stick solution. Alstom needs to build a reliable and robust train or they will get taken to the cleaners later by Irish Rail on repairs and modifications

    There is nothing 'new' on the train, everything is 'new' for us

    • Alstom has extensive experience with hybrid trains, so battery mode is nothing new, the Hydrogen train they make is mostly battery powered anyway
    • ETCS is proven tech
    • The door ramps, again proven tech
    • Articulated trains, again proven tech


  • Registered Users, Registered Users 2 Posts: 273 ✭✭PlatformNine


    Yea that was a typo, Kilcoole was the second station I was refering two in my first sentence. I mix them up more than I'd like to admit.

    I suppose we will see IE's plan as D+ south preferred options emerge and when the wicklow capacity study is published. If they want to increase Wicklow DART capacity above 1tph, Greystones-Wicklow will need some upgrades, and I hope that will include upgrades to Kilcoole sation. However I doubt there is enough space around Kilcoole to do that. The inner rail enthusiast in me wants to see at least part of the section rerouted away from the coast with an improved and reloacted Kilcoole station. Along side being 145km/h capable and either be partially dual tracked or have added passing loops. But I also don't expect IE to spend so much to upgrade a corridor that will always be so limited in capacity because of Bray Head.



  • Registered Users, Registered Users 2 Posts: 1,396 ✭✭✭gjim


    Yep. Frequency is probably the fundamental quality of successful metro systems. Ridership-frequency elasticity is apparently a well studied phenomena - it's been proven that ridership increases with service frequency particularly for commuter type distances. Reading a few abstracts, the literature seems to suggest some major "flip" in the way people view PT once service frequency rises about 10/hour.

    Which makes sense - "turn-up-and-go" means not having to consult timetables or plan their comings and goings around a train or bus schedule and is a game changer for users and negates the major benefit of using a private vehicle.



  • Registered Users, Registered Users 2 Posts: 18,557 ✭✭✭✭Idbatterim


    i am driving to athlone tomorrow, I would prefer to take the train, but getting to heuston station is an hour from Churchtown with public transport! Why isnt there a park and ride, around the m50 or just west of it, for proper park and ride intercity services? In the absense of a proper transport system here, that would actually see, taking public transport over the car, make sense…



  • Registered Users, Registered Users 2 Posts: 3,097 ✭✭✭Citizen  Six




  • Registered Users, Registered Users 2 Posts: 1,456 ✭✭✭bikeman1


    I regularly think this. Heuston station is a pain to get to for many. It has been made easier with the S2 and N2 of late.

    I leave my place 70 minutes before my train is due off Heuston.

    I could pop in my car 30 minutes before that same train leaves Heuston and get to a park and ride near the M50 comfortably (with the exception of the 07:00/09:00 slot which is not when I take intercity).

    Of course because of this I regularly drive down the country because it is much faster because of the faff before and after Heuston or Connolly.



  • Registered Users, Registered Users 2 Posts: 2,412 ✭✭✭KrisW1001


    Yeah.. The Kildare Line in particular manages to be equidistant between two junctions on M50, and then equidistant between N4 and N7 outside, which which makes it difficult to get from station to motorway and vice-versa. Inside the M50, Park West/Cherry Orchard (the closest station to M50 on the Kildare line) is particularly hard to get to from either J7 or J9. (M50 has no Junction 8 - maybe we should put it back in as a DART park&ride? … I’m kidding!)

    Kishogue would be the best-connected place near M50 to meet an InterCity train, but really only from N4 - it’s a bit of a slog from N7.

    The outer orbital DART route (I can’t remember what it was actually called) was proposed to fix this connectivity problem. This was a North-South corridor shadowing M50, connecting the Sligo and Kildare lines with Tallaght. Because it would cross the major roads, adding P+R would be easier. You could still meet an inter-city train, but you’d get a DART P+R from somewhere nearer to you and it would bring you to the nearest stop for the inter-city.



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  • Registered Users, Registered Users 2 Posts: 15,584 ✭✭✭✭loyatemu


    they're spending a fortune protecting the existing line and have ruled out moving it as part of the options process:

    Kilcoole station (which is little more than a single platform halt) is down a narrow road nearly 2km from the village with a small car park I don't think can be expanded.

    I'm sure during the Dart South consultation there will be calls for Newcastle to be reopened but it's in an even more remote and awkward location.



  • Registered Users, Registered Users 2 Posts: 7,906 ✭✭✭GerardKeating


    So widen the road to the station, and build a couple of apartment blocks beside the station ?



  • Registered Users, Registered Users 2 Posts: 273 ✭✭PlatformNine


    As expensive as the prefered option for ECRIPP will be, it is still likely a fraction of the cost of a even a partial new alignment between Greystones and Wicklow. And I think some of the works along the section would still need to be done even if the alignment was relocated?

    I don't think its quite that far is it? Either way it doesn't matter, its not close and even if it was the road to the station is pedestrian-hostile. I almost think with how limited space is for a car park, that they would be better off asking the NTA to buy an Enviro100(or some other small single-deck bus) that can turn around in such a small space, and run a feeder service to Kilcoole as part of the DART extension. I would imagine ridership at the station will increase substantially(from being the second least used station on the line) if it recieves an hourly DART, and its not sustainable to have most passengers drive to the station.

    Ah guarenteed. Correct me if I am wrong but I think every D+ project so far has come with calls to open/re-open some station. The only reason I could see IE even consider reopening Newcastle would be for it to serve as a passing loop between Wicklow and Greystones. However I think there would barely be any space as is, let alone after the sea wall upgrades from ECRIPP. If a passing loop is really needed, my guess is IE would look south of Newcastle where there seems to be more space to work with.



  • Registered Users, Registered Users 2 Posts: 15,584 ✭✭✭✭loyatemu


    some of the line was doubled in the past, but the layout has changed a lot over the years with coastal protection and the line being move inwards. They're also working on greenway alongside the line. I don't think it needs to be doubled or passing loops in the near future, it's only 15 mins from Greystones to Wicklow, so they could even go to 40 mins frequency if they wanted to, which would be every 2nd Greystones Dart continuing to Wicklow.



  • Moderators, Science, Health & Environment Moderators Posts: 5,320 Mod ✭✭✭✭spacetweek


    KrisW1001

    M50 has no Junction 8 - maybe we should put it back in as a DART park&ride? … I’m kidding!

    Not sure why you're saying you're kidding - this is a very good idea that we definitely should do. It would be an intercity P&R though not a DART P&R. A large car park for the station should be built with bus bays and turnarounds and nearby bus routes sent there.



  • Registered Users, Registered Users 2 Posts: 273 ✭✭PlatformNine


    It would likely have to with the plans to remove (or at least reduce) the Heuston car park. Though it likely would be designed for both IC and DART users. A P&R like that just off the M50 would hopefully help reduce car journies within the city.

    plus ideally if they did that, they could also then convert some of the existing Heuston car park into other uses, including as extra platforms and/or sidings to future proof the station. Though from the sounds of the Heuston master plan it seems like they plan to turn the entire area into a large mixed-use development.

    Post edited by PlatformNine on


  • Registered Users, Registered Users 2 Posts: 3,097 ✭✭✭Citizen  Six


    Driver testing on the new Dart+ train is due to start today.



  • Registered Users, Registered Users 2 Posts: 3,925 ✭✭✭Beta Ray Bill




  • Registered Users, Registered Users 2 Posts: 4,366 ✭✭✭goingnowhere


    Dynamic testing not driver testing



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  • Registered Users, Registered Users 2 Posts: 3,097 ✭✭✭Citizen  Six


    Not union problems. Company problems, making unrealistic demands, not seen in heavy rail anywhere else in the world.



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