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Ground Surveys Initiated for São Paulo Metro Line 22
Urban RailBRJune 19, 2026Score: 9/10PRO

Ground Surveys Initiated for São Paulo Metro Line 22

Signal

Geotechnical investigations for São Paulo's 29 km Line 22-Marrom have commenced.

Impact

positive

The São Paulo government and local commuters will benefit from reduced traffic congestion and improved public transport options. The project aims to connect Cotia, Sabiá, and Osasco to Sumaré station, enhancing accessibility in the region.

São Paulo's metro system is set to expand with the initiation of geotechnical investigations for the proposed Line 22-Marrom. This new line, measuring 29 kilometers and featuring 19 stations, aims to provide a vital link between the western suburbs of Cotia, Sabiá, and Osasco, ultimately connecting to Sumaré station on the existing metro network.

The project is a response to the increasing congestion on the Raposo Tavares highway, which has become a significant bottleneck in the São Paulo Metropolitan Region. By offering an underground alternative, the Line 22-Marrom is expected to alleviate traffic pressures and enhance the overall efficiency of public transport in the area.

Local authorities have prioritized this project as part of a broader strategy to improve urban mobility and reduce reliance on road transport. The commencement of ground surveys marks a critical step in the planning and development phases, allowing engineers to assess the geological conditions necessary for construction.

As the project progresses, it will likely involve collaboration between various stakeholders, including the São Paulo state government, local municipalities, and construction firms. The successful implementation of Line 22-Marrom could serve as a model for future metro expansions in other congested urban areas across Brazil.

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