| Term | Explanation |
|---|---|
| Feed | Feeds 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. |
| Agency | Some public transport provider, e.g. HSL. |
| Disruption (Alert) | A temporary change in public transport services. For example, a stop out-of-use or a diversion on a route. |
| Transportation Mode | A means of transport, for example: walking, cycling, driving a car, bus, train, subway, tram, ferry, airplane. |
| City bike | A shared-use bicycle that can be borrowed for a fee by anyone. |
| Term | Explanation |
|---|---|
| Route | A 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 |
| Pattern | A 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). |
| Trip | A specific occurance of a pattern, usually identified by the route and exact departure time from the first stop. For example: bus 102 leaving from Otaniemi on 2017-11-21 at 10:00, or more generally leaving from Otaniemi at 10:00 on specified days. |
| Headsign | A 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). |
| Term | Explanation |
|---|---|
| Station | A location, which contains stops. For example, a train station is a station and its platforms are stops. |
| Stop | A public transport stop, from which passengers can board vehicles. |
| Cluster | A list of stops, grouped by name and proximity. |
| Stoptime | Stoptime is the time when a specific trip arrives to or departs from a specific stop. |
| Departure row | A 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. |
| Term | Explanation |
|---|---|
| Itinerary | A 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 |
| Leg | One part of an itinerary, e.g. walking to a bus stop or a bus ride between two stops. |
| Origin | A geographical point where an itinerary begins. |
| Destination | A geographical point where an itinerary ends. |