July, routes 6 and 11 were revised in the city centre, with route 6 no longer serving the railway station, leaving unused the relatively new wiring along Viale Berengario, and route 11 taking over from route 6 the service along Corso Canal Grande and via Piazza Roma. The outer termini of both routes were unchanged. Effective 1 January 2012, a reorganization saw the replacement of Azienda Trasporti Collettivi e Mobilita (ATCM)IT by Società Emiliana Trasporti Autofiloviari S.p.A. (SETA)IT as the operator of all urban transit service in Modena. In spring 2012, route 6 was extended a second time at its southern end, by about from Via Forlì to Via Chinnici, along new streets built in 2011 to serve new apartment blocks. The service was extended on 11 April, but temporarily using diesel buses, and regular operation with trolleybuses did not begin until 15 May 2012. Services On Mondays to Fridays and on Saturday mornings, the routes comprising the present Modena trolleybus system are as follows: On Saturday afternoons and Sundays, routes 6, 7 and 11 are replaced by 6A, 7A and 11A. Route 6A terminates at Autostazione, not serving the section to Via Santi. Routes 7A and 11A are designed to avoid the section of Via Emilia that is pedestrianised at these times (between Corso Duomo and Corso Canal Grande), and they essentially exchange their city-centre routings. Route 7A is diverted via Piazza Roma, and 11A is diverted via Autostazione, but all four of their outer termini are unchanged. Fleet Past fleet The following trolleybuses have been used on the Modena system, but are now retired: Fiat 668/F 122 Cansa CGE (4 trolleybuses, nos. 11-14), originally destined for Catania; Fiat 668/F 131 Cansa Marelli (12 trolleybuses, nos. 15-26), entered service between 1949 and 1950 - the last remaining were retired in 1972, upon the closure of line 5; no. 17 was bought by a private purchaser, and is still visible, although in poor condition, in a private forest at Serramazzoni (MO); Fiat 2401 Cansa Marelli: (2 trolleybuses, nos. 27-28), entered service in 1953 - due to several problems with the steering and electrical systems, these units were withdrawn in 1967; Fiat 2411 Cansa CGE (6 trolleybuses, nos. 29-34), registered in 1959 - the last units ceased service in 1986; no. 33, was maintained for training drivers until the end of the 1980s, and has been preserved as a historic vehicle