Central line (London Underground) Central line (London Underground) The Central line is a London Underground line that runs through central London, from , Essex, in the north-east to and in the west. Coloured red on the Tube map, the line serves 49 stations over , which makes it the longest Tube line. It is also one of only two lines on the Underground network to cross the Greater London boundary, the other being the Metropolitan line. One of London's deep-level railways, Central line trains are smaller than those on British main lines. The line was opened as the Central London Railway in 1900, crossing
Line 1 Yonge–University Line 1 Yonge–University Line 1 Yonge–University is a route on the Toronto subway in Toronto, Ontario, Canada. It is operated by the Toronto Transit Commission, has 38 stations and is in length, making it the longest line on the subway system. It opened as the "Yonge subway" in 1954 as Canada's first underground passenger rail line, and was extended multiple times between 1963 and 2017. Averaging over 720,000 riders per weekday, Line 1 is the busiest rapid transit line in Canada, and one of the busiest lines in North America. The line forms a rough 'U' shape, with two portions