General Directorate of Traffic is responsible of traffic control and management functions on interurban roads of Spain (except Basque country -DT- and Catalonia -SCT-). The country has a surface of 504.750 square kilometres and more that 330.000 kilometres of roads. Traffic information is exchanged between DGT, SCT and DT by means of DATEX, therefore the international DATEXII server has available information from the whole country.