 Bremen has an international airport situated south of the city centre.Trams in Bremen and local bus services are offered by the Bremer Straßenbahn AG (translates from German as "Bremen Tramways Corporation"), often abbreviated BSAG, the public transport provider for Bremen.The Bremen S-Bahn covers the Bremen/Oldenburg Metropolitan Region, from Bremerhaven in the north to Twistringen in the south and from Oldenburg in the west, centred on Bremen Central Station.