IE not keen on the airport metro and while I agree it won't happen anyone want to speculate why they appear desperate for a DART spur which we all know cannot handle the so called "vision" they have for intercity services to the airport etc. A fancy new signalling system won't cut it unless they put down a more than 7kn of new tracking into the city center.
http://www.newstalk.com/Irish-Rail-q...h-is-realistic