DATEX II is a multi-part Standard, maintained by CEN Technical Committee 278, CEN/TC278, (Road Transport and Traffic Telematics), see www.itsstandards.eu. The first three Parts of the CEN DATEX II series (CEN 16157) have already been approved as Technical Specifications. These three Parts deal with the most mature and widely used parts of DATEX II: the modelling methodology (called Context and framework) as Part 1, Location referencing as Part 2 and the most widely used DATEX publication for traffic information messages (called Situation publication) as Part 3.
A fourth Part of CEN DATEX II series, VMS publications, is currently being prepared for standardization to CEN/TC278 and a fifth part on measured and elaborated data is currently proposed as work item. More parts are to follow as new content requirements emerge.
A roadmap for CEN DATEX II series standardisation is given at www.itsstandards.eu.
The version of DATEX II that had been subject to voting inside CEN has been created out of the version 2.0 of the DATEX II specifications, which can be downloaded from this website by registered users in the DOWNLOAD >>>> VERSION 2 - 2.0 section.
Creation and maintenance of CEN Standards are subject to CEN/CENELEC Internal Regulations, see http://www.cen.eu/BOSS . To support a consistent change management process the EasyWay Technical Group has prepared Rules of Procedure which have been endorsed by the EasyWay Strategy Group and Working Group of CEN/TC278.