The aim was to help to substantially increase quality of traffic signs, ensure uniformity of traffic signs with EU countries, take into account development in telematics and establish standards enabling optimal development of navigation technology and other intelligent transport systems. Outputs of the project contributed to higher engagement of telematic transport solutions into the existing transport systems. The network of highways of the Czech Republic will be thus involved into the common architecture of information technologies and traffic management of the European road network. Therefore, it was necessary to prepare such proposals for changes, which could be included in technical conditions and supplement to relevant standards. Technical conditions also become a separate output of this research project. TP 141 Principles for Systems of Variable Traffic Signs and Devices for Variable Traffic Information on the Road Infrastructure