The Cork Suburban Rail () network serves areas in and around Cork city in Ireland. There has been a suburban rail system in Cork since the middle of the 19th century; however, it was subject to line closures in the 20th century. The city also had a tram network - a short-lived horse-tram service in the 1870s and an electric tram system between 1898 and 1931. The Cork Suburban Rail network operates on three lines, and is served by 10 stations. In 2018, there were 3.46 million passenger journeys on the Cork to Dublin line (up 10% from 2017), 908,000 on the Cork to Cobh line, and 437,000 on the Cork-Midleton line (up 5.8%). Routes Cork to Mallow Three services run from Cork Kent to Mallow. Dedicated commuter services using 2600 class railcars supplement stops at Mallow and Cork by 22000 class railcar operated services from Cork to Tralee and Mark 4 locomotive hauled coach and 22000 class railcar services from Cork to Dublin Heuston. Mallow is served by seven commuter trains, three intercity trains from Cork to Tralee, and 14 intercity trains from Cork to Heuston per day. A single weekday service, the 06:15 Cork-Heuston express, does not stop at Mallow. Cork to Cobh Services run from Cork Kent to Little Island, Glounthaune, Fota, Carrigaloe, Rushbrooke, Cobh. The Cork-Cobh journey takes 24 minutes, stopping at all stations. Following an upgrade in July 2022, trains run every 30 minutes. The service is normally provided by two-coach 2600 Class diesel railcar sets, although trains of two sets are often used when to service the arrival of international cruise liners in Cobh. Fota station is especially busy during summer months, as the station serves visitors to Fota Wildlife Park. Cork to Midleton Services run from Cork Kent to Little Island, Glounthaune, Carrigtwohill and Midleton. The journey time between Cork and Midleton is 23 minutes. Following an upgrade in July 2022, trains run every 30 minutes. In combination with services to Cobh, trains call at Little Island and Glounthaune every 15 minutes. This project was funded under the Irish Government's Transport 21 investment programme and opened on 31 July 2009. It involved the provision of a 10 km (6.25 miles) single track railway to Midleton with a passing loop at Carrigtwohill, new bridges to replace level crossings, improving existing bridges, new signalling systems and the reopening of Carrigtwohill and Midleton stations. The former