The History and Expansion of the São Paulo Metro: From 1974 to the 2026 Megacity Transit Network
How rail rapid transit transformed the largest metropolis in the Southern Hemisphere over five decades
The history of the São Paulo Metro (Companhia do Metropolitano de São Paulo) is inseparable from the rapid modern urban expansion of South America's greatest economic hub. Today, combined with the commuter rail network of CPTM and privatized lines (ViaQuatro and ViaMobilidade), the São Paulo metropolitan rail system spans over 380 kilometers across 17 transit lines, carrying more than 7 million passengers every weekday.
1. Origins and the Pioneer Era: The 1970s
Although initial proposals for subterranean transit in São Paulo date back to the late 19th century, civil construction officially began on April 24, 1968 on the North-South Line (now Line 1 - Blue) in the southern Jabaquara district.
On September 14, 1974, Brazil witnessed its first commercial subway journey, operating 6.4 km between Jabaquara and Vila Mariana. By 1975, the line reached Santana in the northern zone, slicing directly underneath São Paulo’s historic city center and connecting major civic hubs such as Sé, São Bento, and Luz.
2. Line 3 - Red: The High-Capacity East-West Axis (1980–1988)
The 1980s were dominated by the rapid construction of Line 3 - Red, designed to relieve congested bus corridors from the East Zone. Opening in stages through Bresser, Belém, Tatuapé, and reaching Corinthians-Itaquera in 1988, as well as the Palmeiras-Barra Funda intermodal terminal in the west, Line 3 evolved into one of the highest-density subway corridors on Earth, regularly carrying over 1.2 million riders daily.
3. Line 2 - Green and the Paulista Avenue Corridor (1991–2006)
In 1991, the system expanded into the financial heartland with the opening of Line 2 - Green beneath the iconic Paulista Avenue, initially connecting Paraíso to Consolação. In subsequent years, Line 2 pushed west toward Vila Madalena (1998) and southeast toward Alto do Ipiranga, Sacomã, and Vila Prudente (2010), playing a crucial role in orbital orbital passenger transfers without passing through the city center.
4. Driverless Automation: Line 4 - Yellow and Line 5 - Lilac
In 2010, São Paulo introduced Line 4 - Yellow, the first fully automated, driverless GoA4 subway line in Latin America. Operated by the private concessionaire ViaQuatro, Line 4 created vital orbital connections at Paulista, Faria Lima, Pinheiros, and Luz.
Meanwhile, Line 5 - Lilac, which initially opened in 2002 serving the southwest periphery between Capão Redondo and Largo Treze, completed a major extension between 2014 and 2019, integrating directly with Line 1 - Blue at Santa Cruz and Line 2 - Green at Chácara Klabin.
5. Monorail Innovations and Airport Rail Links (2014–2026)
The deployment of Line 15 - Silver in 2014 introduced automated high-capacity straddle monorail technology to the metropolis, extending from Vila Prudente to São Mateus and Jardim Colonial. In 2018, commuter rail operator CPTM opened Line 13 - Jade, connecting the metropolitan rail network directly to São Paulo-Guarulhos International Airport (GRU).
6. The Horizon: 2026 to 2030
São Paulo continues building extensive transit infrastructure, highlighted by the fully underground Line 6 - Orange (Brasilândia to São Joaquim), the Line 17 - Gold Monorail connecting Congonhas Airport to Morumbi, the eastward extension of Line 2 - Green to Penha, and new regional intercity passenger trains (TIC Campinas).