Looking at these numbers and the claims that it has a capacity 3 times that of the current luas green line, i can easily see that this sevice fulfills "current" needs.
However current needs are meaningless! The true goal of a proper future transport system would be to cater for all commuter corridors with large capacity high frequency services. Not only that but it will have to be GREEN! ITs an electric system, it has to get power from somewhere, where is it going to come from, the national grid? With population growth and a proposed electrification of several Dublin lines, there will be a huge demand on power, wheres it going to come from
The Metro should be built to this plan, as it seems efficiant for the time being, but to respect are children and grand children the tunnels should be wide and the platforms adjustable so that with minor work to a segregatted line we can make the metro a real underground service.
Also, if we all want to stop global warming etc etc, trains, trams and buses and anything else should be the governments only priority. Its not like hydrogen fuel cells or sollar cars are viable in the very near future.