From Wazeopedia
Turkey road shield Highway.PNG
  • Major Highways are express roads that are not freeways. In Turkey, most state roads are major highway; they always starts with D-xxx. Similar to freeways, there might be an E-x number assigned as well. Use the same naming convention as described for freeways in rural areas. In urban areas, a city name may be added. The latest directory of motorways is from 2014.
  • Minor Highways are mostly maintained by local authorities. There is no standard for road naming. We use this road type for through-going traffic or for longer distances connecting cities or towns.
  • Ramps are entrance and exit roads to highways and have special functions for routing instructions. See the explanation on Interchanges and other connecting segments for detailed information.