Trondheim Sporvei Bilruter:Yellow upper part, dark red lower part. Trondheim Sporvei Trondheim Sporvei was a municipally owned tram operator in Trondheim, Norway that existed between 1936 and 1974. The company operated the municipal parts of the Trondheim Tramway until it was merged with A/S Graakalbanen and Trondheim Bilruter to create Trondheim Trafikkselskap. That company has become part of Nettbuss, the largest Norwegian bus company in Norway which is owned by Norwegian State Railways ("Norges Statsbaner AS"). The tramway in Trondheim was started in 1901 and replaced a horse omnibus service from 1893. The city council established Trondhjems Elektricitetsværk og Sporvei to build
Coat of arms of Trondheim "The seal of the citizens of the city of Nidaros". The design of the shield in its present form was made by Haakon Thorsen. Most Norwegian municipalities have a banner of their respective coats of arms as a flag. The flag of Trondheim is instead a red field with the yellow "Trondheim rose". Coat of arms of Trondheim The coat of arms of Trondheim is based on the medieval seal of the city. The seal is probably from the 13th century, but its earliest preserved form is on a document from 1344. The coat of arms was assumed by the