O-Train: Tunny's Pasture to Bayview

The O-Train is a light metro transit system in Ottawa, Canada. There are two lines, the electrically-operated Confederation Line and the diesel-operated Trillium Line.

The name "O-Train" was based on the classic Duke Ellington signature tune "Take the 'A' Train", which refers to the New York City Subway's A train. Because Ottawa is a bilingual city, the name had to work in both English and French. In French, it is pronounced similarly to au train, as in to travel "by train".