Actv
Actv S.p.A. (Azienda del Consorzio Trasporti Veneziano) is a public company responsible for public transportation in Venice and Chioggia municipalities and for interurban bus services in province of Venice. ACTV is not responsible for Venice People Mover (managed by AVM) and waterbus routes between airport and the lagoon area (managed by Alilaguna). Connections by bus with Venice airport are managed by ACTV and by ATVO. Network. Venice municipality. Lagoon area. The main public transportation means are motorised waterbuses ("vaporetti"), which ply regular routes along the Grand Canal and between the city's islands. Lido and Pellestrina islands. Lido  and Pellestrina are two islands forming a barrier between the southern Venetian Lagoon and the Adriatic Sea. On those islands road traffic is allowed. There are bus services and waterbus services linking the islands with other islands (Venice, Murano, Burano) and with the peninsula of Cavallino-Treporti. Mainland. The mainland of Venice is composed of 4 boroughs: Mestre-Carpenedo, Marghera, Chirignago-Zelarino and Favaro Veneto. Mestre is the center and the most populated urban area of the mainland of Venice. There are several bus routes and two tramway lines. Several bus routes link the mainland with "piazzale Roma", the main  bus station in Venice, via Ponte della Libertà a road bridge connecting the historical center of the city of Venice to the mainland.