S4 was extended from Seveso to Camnago on 19 February 2006. The new Romolo station on line S9 was opened 3 months later. Lines S1, S2, S6 and S10 were extended from Porta Vittoria to the new station of Rogoredo on 15 June 2008. Two new stations, Pregnana Milanese and Rho Fiera Milano were opened in 2009. Line S8 and S11 began operation at the end of the same year, while the service was extended to reach Lodi and Treviglio. On 26 March 2011, with the completion of the Milan Metro Line 3 north extension, a new station, Affori, was opened in place of the old one, to be an interchange with the Metro. On 1 May 2011 a new company, Trenord, was created from the joining of the two main regional train operators in Lombardy, Trenitalia and LeNord. Trenord is since then the operator of most of suburban lines. Planned extensions line S2: extension from Milano Rogoredo to Pieve Emanuele. line S8: extension from Milano Porta Garibaldi to Milano Bovisa. line S9: extension from Saronno to Busto Arsizio. line S13: extension from Milano Bovisa to Garbagnate. At least five new lines are expected to enter service in the next few years: line S14: Magenta - Milano Rogoredo. line S15: Parabiago - Milano Rogoredo. line S16: Abbiategrasso - Lambrate - Rho. line S17: Garbagnate - Garbagnate Ovest - Lainate. line S18: Milano Bovisa - Milano Porta Garibaldi - Carnate Usmate - Orio al Serio. Several new stations are also planned for the Milan urban area: Milano Tibaldi, the renewed Milano Porta Romana and others. Gallery See also Transport in Milan List of Milan S Lines stations References External links Trenord - Le linee S Line S5 Metropolitan City of Milan Passenger rail transport in Italy