In the case of these two bridges I saw the potential and went out to shoot them deliberately so that was pleasing. Luas ( Irish for "speed") is a tram/light rail system in Dublin, Ireland, which in 2015 carried 34.6 million passengers. There are two main lines: the Green Line, which began operating on 30th June 2004, and the Red Line which opened on 26th September 2004. The system now has fifty-four stations and 36.5 kilometres (22.7 mi) of track. The system now has fifty-four stations and 36.5 kilometres (22.7 miles) of track