The Gruppo Torinese Trasporti (GTT) is a public benefit corporation responsible for public transportation in the provinces of Turin, Alessandria, Cuneo and Asti. It was created in 2003 from the merge of ATM (Azienda Torinese Mobilità) and SATTI (Società Torinese Trasporti Intercomunali), the latter responsible for railway connection in the province of Turin as well as for the Turin metro. GTT is now wholly owned by the Turin City Hall.