The Sarmiento Railway is a major commuter rail line in Buenos Aires, Argentina. It connects the city to the western suburbs, facilitating daily travel for thousands of passengers. The line is named after Domingo Faustino Sarmiento, an influential Argentine educator and politician. Opened in the late 19th century, the Sarmiento Railway has undergone various upgrades and expansions over the years. It operates several services, including express trains, and is an essential part of the city's public transportation network, helping to reduce traffic congestion and improve accessibility for residents.