This article presents tests results of the pilot project – The functional structure of the National Automated Toll Collection System (NATCS). During the tests OBU automatically charged a fee (toll), taking into account the category of vehicle (admissible mass, the number of axes), the category of emissions, and distance of road travelled. OBU is equipped with GPS, GSM and Dedicated Short Range Communication (DSRC) modules, which ensure its interoperability with other European Electronic Tolling Systems (EETS) in the EU Member States. The system meets the requirements of 2004/52/EC Directive and the EC Decision from the 6th of October 2009. Tests proved high effectiveness of automatic number plate recognition, being 99, 9%. The analyses of PDOP (Position Dilution of Precision) parameters showed that 90% had the value below 1, and 8% value from 1 to 3. Based on tests, the maximum number of satellites for localization was – 11 and minimum – 5, that create value 99%.

EETS, NATCS, DSRC, interoperability.