Trondheim of the city and its suburbs. In addition, the Nattbuss (Night Bus) service ensures cheap and effective transport for those enjoying nightlife in the city centre during the weekends. The Nattbus has other prices than ordinary buses. The European route E6 highway passes through the city centre of Trondheim in addition to a motorway bypass along the eastern rim of the city. Trondheim is twinned with: Trondheim Trondheim (; historically Kaupangen, Nidaros and Trondhjem) is a city and municipality in Trøndelag county, Norway. It has a population of 193,501 (4th quarter 2017), and is the third-most populous municipality in Norway,
Trondheim Östersund in Sweden, and two southbound connections to Oslo, the Røros Line and Dovre Line. The Coastal Express ships (Hurtigruten: Covering the Bergen–Kirkenes stretch of the coast) call at Trondheim, as do many cruise ships during the summer season. Since 1994 there is also a fast commuter boat service to Kristiansund, the closest coastal city to the southwest. Every morning the Hurtigruten ships have one southbound and one northbound arrivals and departures in Trondheim. A car ferry route from the port of Flakk in the northwest of the municipality, connects Trondheim with Fosen. Various bridge projects over the Trondheim Fjord