Line S12 (Milan suburban railway service)

The line S12 (Linea S12) is a commuter rail route forming part of the Milan suburban railway service (Servizio ferroviario suburbano di Milano), which converges on the city of Milan, Italy.

The route runs over the infrastructure of the Milan Passante and Milan–Bologna railways. Like all but one of the other Milan suburban railway service routes, it is operated by Trenord.

Route
Line S12, a cross-city route, heads initially in a southerly direction from Milano Bovisa through the Milan Passante railway to Milano Rogoredo. From there, it turns south-east towards its southern terminus, Melegnano.

History
The route was activated on 12 September 2016. The route was suspended on 25 February 2020 due to COVID-19 pandemic and it has been partially restored in August 2023, with four trains per direction per day, running at 15 minutes intervals when paired with line S1. A more complete service shall be restored in 2024.

Stations
The stations on the S12 are as follows (stations with a coloured background are within the municipality of Milan):