ViaQuatro to conduct feasibility study for Metrô de São Paulo Line 4 extension, Brazil May 11, 2022 | Latin America News, News The Government of São Paulo has granted permission to ViaQuatro to conduct a feasibility study for a project to extend the Metrô de São Paulo/São Paulo Metro Line 4. The project will cover the constru... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password