The Rio de Janeiro Metro, commonly known as simply the Metro, is a rapid transit network serving the city of Rio de Janeiro. Brazil. The metro was inaugurated on 5 March 1979 and consists of five stations running on a single line. The system currently covers a total of 58 kilometres, serving 41 stations, divided into three lines: Line 1 (16 kilometres); Line 2 (30.2 kilometres), which travels together on a shared part of the line covering 10 stations an approximate distance of 5 kilometers (3.1 mi); and Line 4 (16 kilometres). The Rio Metro has the second largest ridership in Brazil, after the São Paulo Metro. The Rio de Janeiro Metro is not only a practical means of daily commute, but also a symbol of the city's commitment to efficient and sustainable urban mobility. With its modern stations, high ridership and ongoing expansion plans, the metro system remains an integral part of Rio de Janeiro's dynamic and interconnected transportation landscape.