DATEX II is the electronic language used in Europe for the exchange of traffic information and traffic data.

The development of DATEX II was initiated in the early 90s due to the need for information exchange between traffic centers of motorway operators.

Soon there was the need to share this information to ITS service providers in order to accommodate them with the relevant information.

Nowadays this data provision is searchable and accessible via the NAPs. By means of DATEX II, traffic information and traffic management information is published in a way that is language independent and not constrained by presentation format or end-user service-channel restrictions.

This means that there is no room for misunderstandings and / or translation errors by the recipient, but the recipient can choose to transform the data into spoken text, an image on a map, or integrate it in a navigation calculation.

The increasing scale on which ITS services are being dimensioned, as well as the new digitization requirements arising from self-driving cars, require increased use of standards and thus also challenges the DATEX II community accordingly.

  • DATEX II is one of the core standards to provide data that is regulated by the European Delegated Regulations on ITS-services. It supports the digital provision of data about:
    • Traffic conditions / real time use of the road network,
    • State of the road network (accidents/incidents),
    • Safety related Traffic Information,
    • Traffic management measures,
    • Traffic regulations,
    • (Truck) Parking,
    • Refuelling and recharging infrastructure and its real time availability.
  • DATEX II supports the joint traffic management process of collaborating traffic management entities. 
  • The DATEX II organisation is open to all stakeholders in the traffic and travel domain that want to participate in the development, maintenance and user support of DATEX II.
  • Substantial part of the activities of DATEX II organization are funded in the context of NAPCORE, with a strong representation and contribution of the stakeholder community (originally road operators and road authorities, but now extending to parking, fuelling, charging stakeholders as well). 
  • The governance of the DATEX II organization is controlled by the “Rules of Procedure of the DATEX II organization”.
  • DATEX II is a multi-part standard, maintained by CEN Technical Committee 278, Road Transport and Traffic Telematics, see
  • The more stable parts of the CEN DATEX II series CEN/ 16157 have been approved as European Standard in 2018-2020. Other parts are now a Technical Standard and once they are more mature, they will become European Standards as well.

Within the scope of NAPCORE, DATEX II will evolve to support new data distribution technologies andwork on joint ontologies that have cross-domain relevance within the mobility sector.

A substantial DATEX II support ecosystem is available at