High Quality Content by WIKIPEDIA articles! Buffalo Metro Rail is the public transit rail system in Buffalo, New York, USA; it is operated by the Niagara Frontier Transportation Authority (NFTA). The system consists of a single, 6.4-mile (10.3 km) long line that runs for most of the length of Main Street (New York State Route 5) in the City of Buffalo, from First Niagara Center in Downtown Buffalo to the south campus of the University at Buffalo in the northeast corner of the city.