 In the end the headway was reduced to 45 minutes.In 1974 the three public transport companies in Trondheim, all three owned by the city, were merged to create Trondheim Trafikkselskap (now Team Trafikk, part of Nettbuss).But the most troubled era for the tram service in Trondheim was in the 1980s, when the future of the tram was one of the hottest political issues in Trondheim, resulting in several mayors having to leave office.