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Metrolink south of Charlemont

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Comments

  • Registered Users, Registered Users 2 Posts: 19,259 ✭✭✭✭murphaph


    I suppose I am comparing the civils required to allow interchange at Woodbrook with the civils already built in the area such as the viaducts for the M50 and its collector-distributor roads, substantial Luas viaducts including one over the M50. Nothing we haven't done already really. The only bit of tunneling required would be at Bride's Glen, but that would be C&C. Providing an interchange doesn't really require any hinterland development so what Woodbrook is currently surrounded by is slightly academic. Glasnevin is low density and mostly has a graveyard for hinterland (which will never be developed for housing) but it will still likely be one of the busiest stations in the country and even if density increases around it, I suspect the vast majority of passengers using it will always be transfering, not starting or ending their journey there. Woodbrook golf course is just development land that hasn't been realised yet. It will probably be too valuable not to develop someday. Could even by CPO'd for housing if need be. Same with Leopardstown Racecourse. which is a vast land bank.

    I honestly think we need to re-evalute these CBAs if everthing fails so easily. At the end of the day it's a political decision, not an accountant's decision what gets built and what doesn't. If the CBA was forced to award +x bonus points for adding redundancy to the network, then providing interchange at Woodbrook would suddenly pass the CBA. It's a product of the weighting given to each input and ultimately those weightings are decided by government. Look at the news today about DART+ SW. It's suddenly possible to do both it and DART+ W at the same time now again.



  • Registered Users, Registered Users 2 Posts: 1,797 ✭✭✭spillit67


    The plan is a spur to the M11 with a park and ride (talking about Luas here but assume we are taking like for like with the notion for any such line).

    Woodbrook is not well located for most of Bray either and not good for the M11/M50. You’d be shovelling a lot of cars into an area already overrun with traffic. Even the Bray Transport “Hub” is built around the idea of bringing buses from outlying areas to the DART and eventually the Luas both through the town and via the Transport Bridge.



  • Moderators, Motoring & Transport Moderators, Technology & Internet Moderators Posts: 24,122 Mod ✭✭✭✭bk


    CBA's are a very useful tool as they help you prioritise projects. It isn't really a pass/fail. You will obviously do the projects with a high CBA before one with a low CBA. That isn't to say you will never do the low CBA project, just that it shouldn't really take priority over a project with a better CBA or a project that will serve more people for the same cost.

    Of course with the WRC we can clearly see examples of projects with poor CBA's getting the go ahead for political reasons.



  • Registered Users, Registered Users 2 Posts: 1,830 ✭✭✭p_haugh


    I presume this is the Fassaroe spur? The bus focussed park and ride is being built there currently (haven't been past in a while but presume it's mostly complete), so hopefully the Luas will tie in with this whenever this extension goes ahead.



  • Registered Users, Registered Users 2 Posts: 1,550 ✭✭✭csirl


    The N11 Luas/Metro is simply not happening. Read the room lads. The wealthiest part of Dublin gets 3 x rail links with the city (Dart/Green/N11) while most of the rest of the city has none. Political suicide for any government who suggests this!



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  • Registered Users, Registered Users 2 Posts: 1,797 ✭✭✭spillit67


    Yeah that one. It’s convenient for those coming from further south. North Bray (Dublin end really) will be well covered with the Luas as it enters the town and those people from further south in the town can access it from Bray Daly (walking, bus or bike as they do with the DART) or by Fassaroe.

    I don’t see anyway in which Woodbrook is convenient for that target market or more particularly those from further south. We are effectively talking about in addition to Bray servicing 350k people from south of Bray itself (likely population of Wicklow less Bray plus Wexford by 2035) with this option whether Metro (which I don’t think it will or should be) or by Luas.



  • Registered Users, Registered Users 2 Posts: 10,552 ✭✭✭✭cgcsb


    CBA isnt an exact science and a lot of it is fudge. The criteria can change and projects can be evaluated under either very generous or very tightly scrutinised criteria depending on the client instructions. The existing western rail corridor between Ennis and Athenry was a fail despite generous criteria, still got built. A luas for rathfarnham was a fail because the options considered maintaining lanes for cars as essential, something that might not be a criteria if it was considered again today.



  • Registered Users, Registered Users 2 Posts: 1,797 ✭✭✭spillit67


    This makes no sense. The reason why this “area” has two rail lines is because of decisions made 200 years ago. They are high demand areas with key State infrastructure. Much of the new housing and development in the city has been horsed into Sandyford and Cherrywood. Beyond that, North Wicklow (and now further south) has experienced substantial population growth. We are not just talking about Dún Laoghaire Rathdown and parts of Dublin City Council and South Dublin, we are talking about Wicklow and Wexford- as it is there is limited park and ride rail infrastructure of easy access on the N11/M11 while part of the point of the latest rail investment is to connect the M1, M50, M4, M7 etc to better rail.

    This argument is made occasionally on places like this- but why both the same argument for the Northside? The projects under the NDP will result in SIX high quality rail lines crossing through the Northside (Red, Green, DART South West, DART West, DART Coastal North, MetroLink). Core investment is going into extending the Luas Green Line, MetroLink and all three DART lines. Nobody talks about the fact that these go into wealthy suburbs (believe it or not they are there too)- they talk about the need for these lines and the potential.

    Arguments on “fairness” are complete twaddle.



  • Registered Users, Registered Users 2 Posts: 1,550 ✭✭✭csirl


    They've been talking about tbese Dart projects for over 20 years. They are also mainly window dressing over stressed victorian rail lines. Dont see them ever happening.



  • Moderators, Science, Health & Environment Moderators Posts: 5,759 Mod ✭✭✭✭spacetweek




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  • Registered Users, Registered Users 2 Posts: 1,550 ✭✭✭csirl


    They built a couple of new stations 20 years ogo - no Dart has ever visited them!



  • Registered Users, Registered Users 2 Posts: 1,797 ✭✭✭spillit67


    So to be clear - the existing “Victorian” lines in South Dublin (DART and Green Line) are enough but upgrades elsewhere of a similar vein aren’t?

    Let’s be frank, the 3 highest quality lines in Dublin following the projects on deck will be MetroLink, DART+ West and DART Coastal North. This is across catchment, capacity and connectivity. They will almost entirely serve the Northside of the county. I don’t see any debates on this or perceived “fairness” and nor should there be.



  • Moderators, Science, Health & Environment Moderators Posts: 20,712 Mod ✭✭✭✭Sam Russell


    They opened Westbrook this year and it is visited by every Dart going to or from Bray.

    So that is progress.

    Post edited by spacetweek on


  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip




  • Moderators, Science, Health & Environment Moderators Posts: 20,712 Mod ✭✭✭✭Sam Russell


    Yes of course. I must have a mental block with that name.



  • Moderators, Science, Health & Environment Moderators Posts: 5,759 Mod ✭✭✭✭spacetweek


    I think you’re talking about Kishogue which was left unserved by diesel rail (not Dart) for 13 years but is now open. There are no Dart station unserved by trains.



  • Registered Users, Registered Users 2 Posts: 4,652 ✭✭✭goingnowhere


    Only station closed anyway recently is Mosney

    There are several Luas stops on the Green line which have never opened



  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip


    Several? I thought it was only Laughanstown left to open?



  • Registered Users, Registered Users 2 Posts: 1,830 ✭✭✭p_haugh


    There's one between Ballyogan Wood and Carrickmines, and another between Carrickmines and Laughanstown that have yet to open. I'm not sure of any other "ghost" stops on the network.

    I would imagine both are expected to open up in the coming years, with Cherrywood being developed and the LDA land bank beside Leopardstown Racecourse also being developed on.

    Screenshot_20260111-135940.png


  • Registered Users, Registered Users 2 Posts: 1,550 ✭✭✭csirl


    Yes, your correct, Kishogue is one. Clondalkin is the other. DART was promised on this route in the 00s, 20 years later, no sign of it. Wouldnt be surprised if it still wasnt there in 20 years time. You would think electrifying a few miles of track would be something easy to do.......but in Ireland its treated as if we're tying to put a man on mars!



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  • Moderators, Science, Health & Environment Moderators Posts: 5,759 Mod ✭✭✭✭spacetweek


    Keep reading this thread and you’ll be updated on the progress on that electrification.



  • Registered Users, Registered Users 2, Paid Member Posts: 1,513 ✭✭✭riddlinrussell


    17728800834014490088764072468333.jpg

    FYI some might have missed it with all the doom and gloom around timelines, but the NTA is going to feasibility study a South West extension of the Metro

    Boards is in danger of closing very soon, if it's yer thing, go here (use your boards.ie email!)

    👇️ 👇️



  • Registered Users, Registered Users 2 Posts: 26,177 ✭✭✭✭Kermit.de.frog


    To Templeogue? Or further? Wouldn't have an easy time getting planning in those parts. The most optimistic opening date for ML appears to be 2033.

    There would be expertise in the country when it finishes we would be foolish to let go.



  • Registered Users, Registered Users 2 Posts: 13,264 ✭✭✭✭tom1ie


    I’d imagine it would be to tallaght/ Firhouse via templeogue/ terenure/ rathfarnham direction which is one of the worst areas in the capital for PT.

    It’s a great idea.

    Anyone opposing planning should be given the same treatment as those in charlemount.



  • Registered Users, Registered Users 2 Posts: 10,552 ✭✭✭✭cgcsb


    I wonder has stitching the green line into metro been canned then. Perhaps there'll just be a metro style service from Sandyford to Charlemont



  • Moderators, Motoring & Transport Moderators, Technology & Internet Moderators Posts: 24,122 Mod ✭✭✭✭bk


    it is just a feasibility study. The study may well find it isn’t feasible (economically). The government previously promised to do a study into the feasibility of this route, so this is just following through on that.

    Keep in mind they also did the DART+ Tunnel options study and that pretty much doomed that project progressing in our lifetimes. Or the previous study into connecting the Northern DART line to the airport and even the previous study on services to Navan a decade ago.

    A feasibility study doesn’t mean it will happen.



  • Registered Users, Registered Users 2 Posts: 13,264 ✭✭✭✭tom1ie


    If the project failed a CBA which I presume is the basis of the feasibility study, does that mean the project is automatically shelved?

    If so that’s a massive flaw in the provision of PT to members of the public.



  • Moderators, Motoring & Transport Moderators, Technology & Internet Moderators Posts: 24,122 Mod ✭✭✭✭bk


    It isn’t a guarantee, but it is unlikely to proceed if it has a poor CBA. We have seen projects with poor CBA’s proceed for political reasons, but that tends to be for “cheap” projects. Much less likely for very expensive tunnelled projects.

    Of course I’d assume such a study will also look at the other options, Green line upgrade to Metro, etc. if those other options end up with a better CBA then it would be difficult to suggest a SW Metro proceed over the other options.

    The purpose of CBA’s isn’t really to say if a project should go ahead or not, but more to help prioritise all the different projects you would like to work on. Like let’s say one project as a poor CBA of just 0.5:1, but another project has a very strong CBA of 4:1, then it just doesn’t make logical sense to prioritise the poor project over the strong project.

    In the DART+ Tunnel report, they looked at like a dozen different possible routes and then gave the CBA’s for the short listed ones. That is sort of thing I’d expect to see a report like this.

    EDIT: To add I’d assume this study will also look at other options for the SW like Luas lines proposed under the Luas 2050 vision, etc.



  • Moderators, Science, Health & Environment Moderators Posts: 5,759 Mod ✭✭✭✭spacetweek


    You are the optimistic one, with full construction not starting till 2027 and a nine year build time that’s 2036 just for the physical work to be done but they’ll be at least another year or two of testing and commissioning after that. However, this is all depending on how fast the winning bidder can do it. So don’t take my words exactly.



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  • Moderators, Science, Health & Environment Moderators Posts: 5,759 Mod ✭✭✭✭spacetweek


    A Southwest Metro line must go via Kimmage and Ballymount on its way to Tallaght otherwise there will not be developable land. It would end up serving the fully built out area centred on Terenure where there will be no opportunity for densifying and it’s nearly all upper middle class people who will have low usage of public transport. Guaranteed to fail a CBA if it goes through Terenure.


    So the way these things are framed is really important. I totally agree that if CBA is all that’s taken into account when building public transport, then you aren’t really looking at it the right way. Public transport is mostly provided for social and quality of life reasons and shouldn’t even be expected to make some sort of profit or return to the exchequer of any kind.



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