OpenTripPlanner provides open source multimodal trip planning services. The service can create itineraries combining transit, pedestrian, bicycle, and car segments through networks built from OpenStreetMap and GTFS data. Developers can access the OpenTripPlanner data via a web API with methods & parameters for trips, legs, routes, bike rentals, point sets, elevations, properties, travel options, walking directions, public transit and many more options. Data is returned via JSON or XML formats.
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