シーズンシート
In public transport, a season ticket allows the user to travel by public transport an unlimited number of times within a period of time. The term "commuter pass" is used in some countries. Season tickets are typically sold for a week, month or year. The validity of season tickets varies. At one extreme it may only allow travel between two points (A to B) by only one operator and one route (if there are more than one competing). At the other extreme, it may allow unlimited travel within a geographic area, or even a whole country, allowing free choice of method of transportation (bus, tram, train, etc.) and free choice of operating company.