Complex sentence: Overhead wiring was dismantled between 1975 and 1982; the veichles were partly scrapped and partly sold to Salerno transportation authority (A.T.A.C.S.).
Split into simpler sentences: Overhead wiring was dismantled between 1975 and 1982. Some vehicles were scrapped, while others were sold to the Salerno transportation authority (A.T.A.C.S.).