How do I request a stop be added to a train service

Definitely contact your TD and ask them to contact the NTA.

Last year, Michael Lowry TD and Jackie Cahill TD successfully pressured Irish Rail into having the 17:05 from Heuston stop at Thurles. The stop was removed- they got it reinstated (or at least claimed credit).

Sorry, what statutory consultations are required to have an additional stop on an existing route timetabled?

What is the polytechnic? Never heard of it.

It is arguable that any interchange stop, especially at a major terminus like Broombridge (given that the Luas terminates there and its proximity to Broadstone Bus Depot) should be added to all trains (Commuter and Intercity) along the route alignment. Otherwise, you have v-shaped commutes. We should be providing incentives where possible and convenient for those currently making such journeys by car.

Integration at Broombridge would also improve the relatively under-utilised northern section of the GL. Requiring a change at Maynooth is not an insignificant inconvenience for passengers who would like to make this connection on any sort of regular basis.

I think you can be fairly sure that if the station is opening within the next month, that the timetable for the line is already finalised internally.

Remember new working timetables for staff have to be finalised at least a month in advance, in order to go to be printed ahead of any new timetable change. Pelletstown station opening is going to make operating the Maynooth line "interesting" to say the least, given some of the tight turnarounds at Maynooth (it will add 2 minutes onto each individual journey time which will eat into turnaround times at Maynooth/M3 Parkway), and that the entire Connolly timetable is not being recast.

Bearing in mind that most of the Sligo trains already stop at Drumcondra, I could see thAT another two minute stop at Broombridge is going to cause problems at peak times, given the longer signalling sections on the line, and the volume of trains on the section between Glasnevin Junction and Clonsilla.

Realistically, I suspect that it probably will have to wait for the signalling upgrade to happen.

Adding stops like that is much more complex than people think unfortunately.

there's going to be an interchange with the Metro at the proposed Glasnevin station which will be the next one along from Broombridge.

So you'd have to stop the InterCity trains there as well, which could have knock-on effects for Dart frequency. It would also encourage more people (from Maynooth I suppose) to use the IC as a commuter service. So there are arguments against adding the extra stops and just encouraging people to change onto the Dart at Maynooth.

Its not incorrect. Each added stop means that the following train can not enter the signalling section until the stopping train has cleared the section, and so on and so on. The addition of Pelletstown means more pressure on an already overstretched signalling system will mean that more trains will back up behind as commuters stop at the new station. currently the upshot of opening Pelletstown is that your IC train may end up stopped at Ashtown behind a commuter that now has an additional stop at Pelletstown!! I.e. your journey will be longer.

It is absolutely a good idea as Broombridge is a major hub now but as LXFlyer says i would think that it will have to wait until the signalling upgrade is complete. I suspect this is the plan and both NTA and IE would say this if contacted.

It makes no difference to me, I'm just pointing out there's 2 options for timetabling the Intercity on this line - you add a stop for everywhere there a connection; or you say if passengers want to access the commuter network they do it at Maynooth and Connolly but not in between.