Technical Guidance for the implementation of EU specifications
In the framework of Directive 2010/40/EU, EU specifications have been adopted in order to ensure compatibility, interoperability and continuity for the deployment and operational use of Intelligent Transport Systems (ITS) for the provision of EU-wide safety related traffic information (SRTI) and real-time traffic information (RTTI) services.
For that purpose, Member States need to set up and manage their national access points (NAP), where the relevant data needs to be easily available for exchange and reuse.
In order to further support the harmonised implementation of the specifications under the Directive 2010/40/EU, related to both:
- COMMISSION DELEGATED REGULATION (EU) No 886/2013 of 15 May 2013 with regard to data and procedures for the provision, where possible, of road safety-related minimum universal traffic information free of charge to users;
- COMMISSION DELEGATED REGULATION (EU) 2015/962 of 18 December 2014 with regard to the provision of EU-wide real-time traffic information services.
The following resources may be used on a voluntary basis and aim to provide technical guidance to all stakeholders seeking to improve the accessibility, exchange, re-use and update of the road and traffic data required for the provision of high quality and continuous safety-related and real-time traffic information services across the Union.
Datex EU harmonized Profile for the implementation of Safety-related traffic information
For the purpose of making these data available in the DATEX II (CEN/TS 16157) format, the need to have an EU harmonized profile was essential, allowing DATEX II users to customize their implementations according to their own requirements, whilst keeping interoperability on common parts (publications, operating modes) with other users. The provision of such EU harmonized profiles was only possible after the publication of the current version of DATEX II Version 3.0. The link refers to the SRTI profile, while RTTI is not yet available.
http://d2docs.ndwcloud.nu/profiles/srti.html
Technical Specification on data exchange on changes in road attributes
CEN/TS 17268:2018 defines the content specification for the exchange of road-related spatial data, and especially updates thereof. Based on the content specification, this document defines also a physical exchange format (structure and encoding) for the actual data exchange. In addition, it defines web services needed to make the coded data on updates available. This technical specification addresses specifically static data in the remit of COMMISSION DELEGATED REGULATION (EU) 2015/962 and aims at helping keeping digital maps for ITS up to date. Although the focus of this document is on providing information on updates, the technology described in this document in principle also enables the exchange of full data sets. More information on this topic can be found on https://tn-its.eu/.
Metadata catalogue
A detailed and standardised dataset description – the so-called metadata - is required to create a searchable, easy manageable and high quality register. Users searching for data through the several EU Member States’ national access points should experience no difference in wording or meaning between the metadata there provided, even if in different languages. Thus, in order to support easy data exchange and to prevent data errors when exchanging data between databases, it is necessary to define data fields and data field definitions. This is the purpose of the metadata catalogue, a result of the working group composed by representatives from the Netherlands, Germany and Austria.
Quality Package
Member States and ITS stakeholders have been encouraged to cooperate to agree on common definitions of data quality with a view to use common data quality indicators throughout the traffic data value chain, such as the completeness, accuracy and up-to-dateness of the data, the acquisition method and location referencing method used, as well as quality checks applied.
The European ITS Platform or EIP projects provided a recommendation on quality requirements for the European services of Safety-Related Traffic Information (SRTI) and Real-Time Traffic Information (RTTI) as well as the data content of them. EIP also provided a recommendation for the quality assessment methods to be used in evaluating the services against the evaluation criteria and requirements specified by EIP.
Self-declaration
In order to make sure that these specifications are correctly implemented, Member States are required to assess the compliance with the requirements concerning the accessibility, exchange, re-use and update of the road and traffic data by the road authorities, road operators, digital map producers and service providers. In order to avoid administrative burden to all relevant parties (NAP operators, information service providers, data providers, digital map producers, road operators), the EU EIP project in cooperation with TISA has developed a uniform Declaration of Compliance. The uniform Declaration of Compliance and associated documents (introduction letter, explanatory note) can be downloaded at:
https://www.its-platform.eu/filedepot_download/2216/6242 (RTTI) and
https://www.its-platform.eu/filedepot_download/1980/5870 (SRTI).