The S2 is a commuter rail route forming part of the Milan suburban railway service, which converges on the city of Milan, Italy.
Split-flap display at Milano Porta Garibaldi showing an S2 train to Mariano Comense as the next departure.
The S4 is a commuter rail route forming part of the Milan suburban railway service, which converges on the city of Milan, Italy.
An S4 train at Milan Affori.