The Luas green line remains out of action today. It has been about 24 hours since it went down and we do not know when it will be back. This is causing significant disruption and frustration for commuters across Dublin. Businesses across the city are also concerned, particularly as we are in the lead up to the busy Christmas shopping period. The fact that one Luas line going down can cause such havoc in our capital city is indicative of how poorly our city is served by its public transport links. Contrary to what t…