National Road Registry

A National Road Registry a includes data about national road centerlines and intersections, technical characteristics of national roads and road facilities. It includes traffic signs information as well. The registry is maintained by a Slovenian Infrastructure Agency. The registry core is a graphical layer of national road axis including attributes about roads, road links, and road links mileages. Other road characteristics (like road width, number of driving lanes, road surface material, traffic load, etc.) are kept as an attribute data, the location of characteristics is defined as a mileage. A separate graphical layer of intersection points is also kept in the registry. Intersection point is defined for each crossing of categorized roads with other categorized or non-categorized roads, as well as for every point where road link characteristic is changed.