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 # KPublicTransport
 
 A library for accessing realtime public transport data and for performing
 public transport journey queries.
 
 This includes:
 * Finding bus stops or train stations, departures/arrivals from there, and journeys between those.
 * Path and routing information for individual transport sections of a journey.
 * Information about train coach and train station platform layouts.
 * Information about rental vehicle positions and availability, such as shared bikes or scooters.
 * Realtime information about the operational status of elevators or escalators.
 * Unified access to onboard API on trains for obtaining the current position and journey.
 
 !! Before using this, please read the license compliance and attribution section below !!
 
 ## Data Model
 
 The key elements are:
 
 * KPublicTransport::Journey (getting from one place to another)
 * KPublicTransport::Stopover (departures/arrivals)
 * KPublicTransport::Location (a place, stop, or train station, rental vehicle dock, floating rental vehicle, elevator/escalator,
 ie. anything that has a geo coordinate associated with it).
 
 ## Supported Operations
 
 * Location searches: retrieve stop information based on name or geo coordinates.
 * Stopover (arrival/departure) queries: retrieve base schedule and if available realtime information
   about upcoming arrivals and departures at a stop.
 * Journey queries: obtain ways to get from A to B.
 * Vehicle and platform layout queries: information about where coaches stop on a platform,
 and how a platform is structured.
 
 All operations can be started from KPublicTransport::Manager with an API similar to
 QNetworkAccessManager.
 
 Onboard API access is available via the KPublicTransport::OnboardStatus class.
 
 ## Backends
 
 All data is retrieved from online backend services, this library is not offline capable.
 The following Free Software/Open Data backend types are supported:
 * [Navitia](https://navitia.io).
 * [OpenTripPlanner](http://opentripplanner.org), in the REST, Digitransit and Entur variants.
 * [GBFS](https://github.com/NABSA/gbfs/) feeds for rental vehicles, such as provided by
 the [OpenBike](https://github.com/stadtulm/OpenBike/) bike rental system.
 * [accessibility.cloud](https://accessibility.cloud/) for realtime elevator/escalator status information.
 
 Additionally, a few proprietary/vendor-specific backends are supported too though.
 
 Configurations for about 70 backend services can be found in 'src/lib/networks'.
 Backend service configations follow the [Transport API Repository](https://github.com/public-transport/transport-apis/)
 format.
 
 ## License Compliance and Attribution
 
 When using the data retrieved by this library you need to comply with the license
 terms of the backends this is coming from, in particular https://www.navitia.io/api-term-of-use.
 
 Attribution information that need to be displayed in an appropriate place in the
 application using this are provided globally via KPublicTransport::Manager::attributions()
 as well as more fine-grained per query reply via KPublicTransport::Reply::attributions().
 
 Besides attributing backend data correctly, this library also contains static data
 retrieved from [Wikidata](https://wikidata.org) licensed as CC0 as well as data
 from [OpenStreetMap](https://openstreetmap.org) licensed as ODbL, so those should
 be appropriately credited in your application as well.
 
 ## Development
 
 Setting the `KPUBLICTRANSPORT_LOG_DIR` environment variable will result in all network operations
 being logged there, grouped by backend, and including the full network traffic. This is useful for
 example to capture rare scenarios not parsed correctly yet, or for exploring what additional information
 is available that KPublicTransport does not expose yet.