 Inderøy Automobillag was founded in 1917, and operated a route from Røra Station on the Hell–Sunnan Line via Straumen to Utøy.The idea to have a county-owned bus company was launched by engineer Emil Astrup, who was head of the Public Roads Administration in Nord-Trøndelag.He wrote a letter in 1918, where he stated that it would be more operationally efficient and easier to coordinate traffic if the bus routes in the county were merged into a single entity that was controlled by a political body.