ViaQuatro launches full operations of Metrô de São Paulo Line 4, Brazil July 22, 2022 | Latin America News, News ViaQuatro has launched operations on all sections of the Metrô de São Paulo/São Paulo Metro Line 4/Yellow Line. The 15-km line covers 11 stations and deploys 29 trains. It is expected to have a daily ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password