Tarifzone
Tarifzone is a geographic area used in tariff systems to determine the price of transport tickets. In many public transport networks, fares are calculated based on the number of zones a trip passes through rather than on a fixed origin-destination distance. A journey contained within a single zone requires a cheaper ticket than one that crosses multiple zones. Tickets may be offered as single-zone, multi-zone, or all-zone passes, and some networks also sell time-limited or day passes valid for a chosen set of zones.
Tariff maps define the boundaries of zones and are published by the fare authority or transport association
Practical use: when buying a ticket, travelers must select the zones they intend to travel through. If