ViaMobilidade in the context of São Paulo metro

The São Paulo Metro (Portuguese: Metrô de São Paulo, [meˈtɾo dʒi sɐ̃w ˈpawlu]), commonly called the Metrô, is one of the rapid transit companies serving the city of São Paulo, alongside the São Paulo Metropolitan Trains Company (CPTM), ViaQuatro and ViaMobilidade, all four forming the largest metropolitan rail transport network of Latin America. The metro system carries about 4,200,000 passengers a day.

The six lines in the metro system operate on 104.4 kilometres (64.9 mi) of route, serving 91 stations. It is complemented by a network of metropolitan trains operated by CPTM and ViaMobilidade, which serve the city of São Paulo and the São Paulo Metropolitan Region. The systems combined form a 382 km (237 mi) long network, all accessible via one single ticket. The metropolitan trains differs from Metro because it also serves other municipalities around São Paulo with larger average distance between stations and freight trains operating in some lines.

The Companhia Paulista de Trens Metropolitanos (CPTM) (lit. 'São Paulo Metropolitan Trains Company') is one of the rapid transit companies serving the city of São Paulo, alongside the São Paulo Metro, ViaQuatro and ViaMobilidade, all four forming the largest metropolitan rail transport network of Latin America. It was created on 28 May 1992, from several railroads that already existed in Greater São Paulo, Brazil.

Part of the Greater São Paulo rail system, the CPTM currently operates 57 stations in five lines, with a total length of 199 kilometres (124 mi). The system carries about 2 million passengers a day. On 7 December 2018, CPTM set a weekday ridership record with 3,221,035 trips.