| Term | \nExplanation | \n
|---|---|
| Feed | \nFeeds provide routing data (e.g. stops and timetables) from one or more public transport agencies to the API. List of available feeds can be queried by using feeds query. | \n
| Agency | \nSome public transport provider, e.g. HSL. | \n
| Disruption (Alert) | \nA temporary change in public transport services. For example, a stop out-of-use or a diversion on a route. | \n
| Transportation Mode | \nA means of transport, for example: walking, cycling, driving a car, bus, train, subway, tram, ferry, airplane. | \n
| City bike | \nA shared-use bicycle that can be borrowed for a fee by anyone. | \n
| Term | \nExplanation | \n
|---|---|
| Route | \nA public transport service shown to customers under a single name, usually from point A to B and back. For example: trams 1 and 1A, buses 18 and 102T, or train A. Commonly used synonym: line | \n
| Pattern | \nA sequence of stops as used by a specific direction (i.e. inbound or outbound journey) and variant of a route. For example, a variant of a route could be a tram entering service from the depot and joining at the middle of the route or a route might have a short term diversion without changing the route name (longer diversions are usually marked as different routes). | \n
| Trip | \nA specific occurance of a pattern, usually identified by the route and exact departure time from the first stop. For example: tram 15 leaving from Keilaniemi on 2024-12-18 at 13:13, or more generally leaving from Keilaniemi at 13:13 on specified days. | \n
| Headsign | \nA description of a route usually written on the front of the vehicle. For example: Helsinki (for just the destination) or Helsinki - Tampere (for both the origin and destination). | \n
| Term | \nExplanation | \n
|---|---|
| Station | \nA location, which contains stops. For example, a train station is a station and its platforms are stops. | \n
| Stop | \nA public transport stop, from which passengers can board vehicles. | \n
| Cluster | \nA list of stops, grouped by name and proximity. | \n
| Stoptime | \nStoptime is the time when a specific trip arrives to or departs from a specific stop. | \n
| Departure row | \nA special location type, which lists departures of a certain pattern from a stop. Departures rows are identified with pattern id, so querying departure rows will return departures only from one stop per pattern. | \n
| Term | \nExplanation | \n
|---|---|
| Itinerary | \nA combination of different transportation modes at certain times to reach from origin to destination. For example, walking to a bus stop, taking a bus for two stops and then walking to the final destination. Commonly used synonym: journey | \n
| Leg | \nOne part of an itinerary, e.g. walking to a bus stop or a bus ride between two stops. | \n
| Origin | \nA geographical point where an itinerary begins. | \n
| Destination | \nA geographical point where an itinerary ends. | \n