The Nordic Public Transport Interface Standard, NOPTIS, is a data standard made to support the interconnection of subsystems within a traffic information system including;

  • Planning systems.
  • Schedule databases.
  • GIS-systems.
  • Realtime vehicle reporting systems.
  • Traveller information systems.
  • Travel-planning systems.

NOPTIS is an initiative by four major nordic public transport authorities: Skånetrafiken, Movia, Storstockholms Lokaltrafik and Västtrafik, encouraged by Swedish Transport Association (SLTF) and Swedich Bus & Coach Federation (BR).

The NOPTIS organisation purpose is to facilitate the use of interfaces and to control future developments of the protocol, with the objective to enhance the efficiency and economics of traffic information systems integration to offer the level of service the public transport traveller will demand in the future.


NOPTIS - Organization icon


Release of a Integration Guide

We have the pleasure to release an example of a successful integration between Skånetrafiken and their signage vendor. This document should be seen as a guide to better understanding the possibilities and limitations within the specification. The guide can be found at our download page.

NOPTIS gets a new homepage

The new homepage if official! “With this new homepage we have possibilities to enhance the understanding of the protocols, and show the industri that NOPTIS is still a adequate and living standard” – Carl Järsberg, Chairman of NOPTIS The old one, www.NOPTIS.org, is still functional due to work with the transfer of .org domain. But […]

NOPTIS gets new chairman

The board of NOPTIS decided to elect a new chairman – Carl Järsberg, Skånetrafiken. Krister Nordland has over almost ten years filled the task of Chairman, we thank him for the extensive work done during these years. It is now time to review the organization and its development to meet the new demand of digitalization. […]

The Maintenance Organization Reference Group

To ensure the validity of the standards and to spread it as widely as possible, a Reference Group has been formed. The Reference Group include representatives for authorities and relevant interest organisations like Vägverket, Swedish Transport Association (SLTF) and Swedich Bus & Coach Federation (BR).

The Maintenance Organization Expert Group

The NOPTIS is kept “state of the art” by cooperating with expertise within the vendors supporting the interfaces. The expertise is facilitated by a the NOPTIS System Management Group to not only to keep the functionality on a high level but also to ensure the compatibility and consistency to the traffic information systems of the public transport authorities. In this way the development of the interfaces will be optimized to suit the travellers service demands.


The development of the NOPTIS interfaces is made in close cooperation between the public transport authorities and the vendors of traffic information systems. There is a NOPTIS Maintenance Organization created to manage development and longevity of the interfaces to ensure functionality and consistency. The NOPTIS organisation is also working actively, through its members, to promote and spread the usage of the interfaces according to the following objectives:

  • Include real world experience into the development of the interfaces
  • Facilitate close cooperation among the public transport authorities within the organization and the vendors supporting NOPTIS.
  • Encourage as many vendors to implement the interfaces for their respective products
  • Involve other parties within the public transportation sector


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There is a universal truth: “One size does not fit all”. This is also true for traffic information system interfaces. The five interfaces within the suite are tailored to fit the functionally different kind of data flowing within a system without unnecessary overhead.

DOI Interface

With Data Output Interface (DOI) it is possible to let other applications get access to data concerning all planned data such as timetables and stops imported via the DII interface.

Learn more...

ROI Interface

With Real-time Output Interface (ROI) it is possible for client applications to receive current real time data such as prognosis, deviation actions and deviation information on the DOI data from the public transport operation calculated by the reports from VSI.

Learn more...

Vehicle System Interface 3.0

Version 3.0 of the NOPTIS Vehicle System Interface (VSI) has now been released.

Learn more...


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Movia logotype
Skanetrafiken logotype
SL logotype

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