Value is used to pay for one trip, which may contain changes. Two zone single trip tickets are valid for one 80–110 minutes depending on the zones used. AB, BC and D tickets have 80 minutes and ABCD has 110 minutes. Fare collection On most buses, the driver checks tickets as passengers board. The metro, local trains, trams, ferries, and nine bus lines classified as trunk lines use a proof-of-payment system: fare inspectors check tickets on randomly selected vehicles, and charge a fine of €80 and the price of a single ticket to those who do not have one. If a passenger has forgotten his/her Travel Card with valid travel period, the passenger may later visit a service point of the transport company and will not have to pay the fine. See also Public transport Public transport in Tampere Urban sprawl References External links Helsinki Regional Transport Authority Journey Planner for the Helsinki region Helsinki.fi - Information about transportation and maps in Helsinki region Public transport in Finland Transport in Helsinki