A second metro route which includes Heuston stop or even terminus in the area would be a far better spend than DU. I fully get the benefits of DU but is two different underground systems really necessary.
Is there any possibility of electrification for Dublin-Cork/Limerick or Dublin-Belfast?
Timing electrification to coincide with the end of life of the 201s would make sense.
Well you could in theory be waiting 20+ years for that based on 071 class.
I hope IE (NTA) are monitoring the roll out Hitachi Class 801 (EMU) and 802 (BMMU) across mainlines in the UK which appears to be a good train overall. Cannot see full electrification of a route been completed end to end for a long time and bi mode will be needed.
Luas to Finglas/Poolbeg are pretty much straight forward projects. Lucan would be a very good addition and take pressure off the Red Line between Heuston-Connolly.
So is the proposal for Metro and Luas to share tracks? My understanding of the term "Metro" is total segregation from other forms of transport. I think the number of road crossings on the Green line alignment would make it problematic for a Metro route. Having to intersperse Metro trains with Green line trams would strike me as unworkable, and would severely limit the speed and frequency of the Metro service.
That media proposal a few weeks ago could never work impossible.
An attempt to add third rail to part of Northern Line and improve DART/Commuter/Enterprise.