Västtrafik is the agency responsible for public transport services involving buses, ferries, trains, and the Gothenburg tram network in the county of Västra Götaland, Sweden (plus Kungsbacka Municipality).

Until 31 December 2011 the ownership was shared equally between the Västra Götaland Regional Council and the 49 municipalities in the region, from 1 January 2012 the county council is the sole owner.

The whole of Gothenburg's public transport network is equipped with sensors which track the location of every bus or tram at any given time.

The system allows riders to estimate when a tram or bus will be leaving from the next stop in real time.

The most common problematic situations arose when a single staff member checked a group of people where none had tickets.