Transport telematics deals with application of information and communication technologies with the aim of enhancing traffic performance, economy, efficiency, safety, ecology and comfort of transport. The significance of transport telematics for the Slovak economy will rise. Competitiveness of Slovakia, with traditional industrial production and strategic position in the centre of the European continent, will directly depend on throughput of transport systems, especially road and rail infrastructure, and quality of related services enabling efficient and economical freight and passenger transport. In the near future, the Slovak Republic will, however, face significant cuts in funding and impossibility to carry on increasing the traffic network density. ITS technologies and services will thus become the main tool for sustainable development of transport systems, enabling more intensive use of transport infrastructure, fair imposition of fees for its use, incorporation (internalization) of enhancement of safety.