The Nordic Public Transport Interface Standard (NOPTIS) is a set of aligned Transmodel-based interfaces supporting the interconnection of subsystems within a public transport information system, including planning systems, schedule databases, GIS-systems, real-time vehicle reporting systems, traveller information systems, travel-planning systems, etc.
There are five interfaces in NOPTIS.
Three of the interfaces are focused on allowing partial data provision to an integrator system, while the two remaining interfaces are focused on providing harmonized information to passenger information systems.
One of the interfaces is NOPTIS DII which is a XML/XSD-based interface for transferring planned data prepared in advance from different planning, geographic information and similar systems into, for example, a central public transport database.
Another interface in NOPTIS is RII which is a XML/XSD-based interface for transferring information concerning CONTROL ACTIONs such as JOURNEY CREATIONs and JOURNEY CANCELLATIONs, etc., as well as disruption information.
Of the remaining interfaces, VSI is a vehicle-centric XML/XSD-based interface for transferring real-time information, while ROI is a stop- and vehicle journey-centric XML/XSD-based interface for providing passenger information systems with applied real time information.
The NOPTIS initiative was taken by the four major public transportation authorities in Sweden: Movia (Copenhagen and wider region), Skånetrafiken (Malmö and wider region), Storstockholms Lokaltrafik (Stockholm and wider region) and Västtrafik (Göteborg and wider region) encouraged by Swedish Transport Association (“SLTF”) and Swedish Bus & Coach Federation (BR).
NOPTIS is currently used in the majority of public transport in both Sweden.