The construction, maintenance and repair of these roads are carried out by separate public organizations. The state roads are the primary highways connecting the regional or provincial centers, the airports and the seaports. The General Directorate of Highways connected to the Ministry of Public Works is responsible for the maintenance and repair of the state roads.
Provincial roads are the secon- dary roads within the borders of the provinces.
They connect the cities, towns, counties and the sub-districts to each other, to the provincial centers and to the nearest centers of the neighboring provinces. The total length of the highways is around 62,000 km, and the length of the village roads is around 350,000 km in Turkey. In recent years, the freeway network is rapidly expanding. A total of 198 km of freeways were put into service with connecting roads in 1998 and the total length of the network of freeways has reached 1,726 km. In recent years, thanks to international highway transportation activities, gradually increasing amounts of foreign currency inflow to Turkey was provided for the Turkish economy.