Line S4 (Milan suburban railway service)
| Camnago Lentate–Milano Cadorna | |||
|---|---|---|---|
An S4 train at Milan Affori. | |||
| Overview | |||
| Status | Operational | ||
| Locale | Milan, Italy | ||
| Termini | |||
| Stations | 13 | ||
| Website | Trenord | ||
| Service | |||
| Type | Commuter rail | ||
| System | Milan suburban railway service | ||
| Route number | S4 | ||
| Operator(s) | Trenord | ||
| History | |||
| Opened | 2004 | ||
| Technical | |||
| Line length | 23 km (14 mi) | ||
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) | ||
| Electrification | 3,000 V DC | ||
| |||
The S4 is a commuter rail route forming part of the Milan suburban railway service (Italian: Servizio ferroviario suburbano di Milano), which converges on the city of Milan, Italy.
The route runs over the infrastructure of the Milan–Asso railway. Like all other Milan suburban railway service routes, it is operated by Trenord.