line 1/3 to the end of the 1970s. In 1975, trolleybus no 203, with Mauri light aluminum alloy bodywork, was added to the fleet. This experiment was extended to the 668 Vibertis that had never received attention, nor revisions: nos 209 and 214. In 1977, four more vehicles, nos 241 to 244, were purchased from AMT in Genoa. Again, these were Fiat 668 Mauris. With the closure of line 2 in 1978, the Alfas nos 900 and 910, and the remaining 668 Vibertis, were scrapped. The trolleybuses still circulating were nos 203, 209, 214, and 231 to 244. After a final period of agony with the limitation of the service only to the morning hours, the trolleybus service was suspended in 1985, for asphalting work on Via Chiodo. It was restored three years later, on 26 November 1988, with the arrival of new Breda vehicles, numbered from 801 to 814, following the presentation, on 19 December 1987, of the prototype, no 800. The new vehicles, with their wide technological gap due to air conditioning in summer, space for the inclusion of an independent brand of auxiliary motor, and a capacity of 112 (20 seats, 91 standing and 1 driver), had a greatly positive impact: they are all still in service to this day. In 1998, the network was reorganized, with the activation of the new trunk line Canaletto–Bragarina, and the separation of lines 1 and 3 after 30 years of operation as a circular line. In 2005, due to work on line 3 in Corso Nazionale and near Piazzale Ferro, trolleybus services were suspended between Chiappa and Canaletto and replaced by buses on a single line 3 Chiappa–Felettino. Between 2005 and 2007, the trolleybuses were circulating at a record low: only three daily on line 1 Pegazzano–Bragarina at a frequency of one every 20 minutes. On 30 March 2007, the inaugural run of line 1 took place to the new terminus at Palaspezia. From 12 May 2007 to 11 September 2008, trolleybuses operated alternatively either to the terminus at Bragarina, or to the new one at Palaspezia at a frequency of one every 10 minutes. From 12 September 2008 to 31 March 2011, line 1 effectively operated only between Pegazzano and Bragarina, at 12-minute intervals with six cars on the road. From 1 April 2011, with the introduction of the new timetable, trolleybuses are circulating once again three at a