Trondheim

Trondheim has a well-developed public transport system, and most of those who work in the city centre catch the bus to work. The AtB customer service centre sells tickets and t:cards (smart cards for public transport) and provides information about schedules and other questions related to public transport in Trondheim and Sør-Trøndelag. Ticket machines are situated at several locations in the centre, while you can also buy tickets via a mobile app.
Fuente: BCN/Visit Trondheim