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In the state reference system it is possible to position parcels, objects, utilities, terraine, topographics objects both in vertical and horizontal sense. Whithin State reference system it is possible to determine: spatial (three-dimensional) reference system, horizontal (two-dimensional) reference system, vertical (one-dimensional) reference system, gravimetric and astronomical reference system. Spatial and horizontal reference system are defined with SREF and AGROS. SREF – Geodetic reference basis of Serbia relies on the Yugoslav reference framework – YUREF which represents the implementation of European framework – EUREF for the territory of Yugoslavia. The network points evenly cover the territory of the state with distance between each other of about 10km. With establishing the GPS reference network, a unique and homogenous mathematical basis for all geodetic, navigational and other activities on the entire territory of the Republic of Serbia is provided. With positioning reference GPS network points on the EUREF – Еuropean Reference Framework points, coordinates under a unique referent frame of Europe are determined. SREF network consists of 838 points.
Gravity network points has been established within state survey. Each point has its own coordinates. Fundamental benchmarks together with reference network points are included in the gravity network.
Topographic map at a scale of 1 : 250 000 is a digital topographic map based on the cartographic database scale 1 : 250 000, which represents a set of geospatial positioned entities modeled by natural and man-made objects on the Earth's surface, that satisfy the conditions for display in the scale of 1 : 250 000. Topographic map at a scale of 1 : 250 000 consists of 14 sheets. The dimension of one sheet is 150 km along the horizontal axis and 100 km along the vertical axis.
Statistical units are units for the distribution or use of statistical data. The statistical units consist of Statistical Circle, Census Circle and Polling Station Area. It contains data on: registration number or code of the spatial unit, type of spatial unit, hierarchical connection with superior and subordinate spatial units, geospatial data and history of change. The statistical circle is the smallest constant spatial unit. The network of statistical circles is formed within the settlement - inhabited place, ie within the cadastral municipality. One statistical circle can contain one or more census circles. The census circle is the smallest spatial unit about which data are kept in the Register of Spatial Units and which is formed for needs census, for the purpose of precise distribution of enumerators in the field and ensuring complete coverage of census units. When defining local communities whose border is part of a statistical circle, the border is defined by census circles. The criteria for determining the size of the census circle are the number of households and the character of the settlement. For each polling station, the area of the polling station is determined, from which voters vote at that polling station (street, village, hamlet, settlement, etc.) and which usually includes a list of streets with house numbers, the name of the settlement, etc. Statistical units also consist of spatial units defined by the nomenclature of statistical territorial units (NSTJ): Serbia-North and Serbia-South (NSTJ1), regions (NSTJ2) and areas (NSTJ3). NSTJ grouping levels are provided by aggregating territorial units. The nomenclature of statistical territorial units is a set of terms, names and symbols that describe groups of territorial units with levels of grouping. The criteria according to which the NSTJ levels are grouped are based on general criteria determined by the standards of the European Union: number of inhabitants, geopolitical position, natural potentials, existing territorial organization, cultural - historical heritage.
Records of identified changes on objects includes information about changes of objects on the territory of the Republic of Serbia (except for the territory of the Autonomous Province of Kosovo and Metohija) caused by construction, upgrading or removing on the field, compared to registred from Real Estate Cadastre, which are collected based on available spatial data sources.
The precise levelling network consists of a set of permanently marked and easily accessible fundamental benchmarks. Temporary benchmarks can be main and supporting. They represent the points distributed at the distance less than 1.5 km in the form of levelling lines between the fundamental benchmarks.
Geographic and tourist map of Serbia at a scale of 1: 300 000 is a digital geographic map based on the cartographic database scale 1: 250 000, which represents a set of entities modeled by natural and man-made objects on the Earth's surface, that satisfy the conditions for display in the ratio 1 : 300 000.
Register of spatial units contains border, name and registration number for the following spatial units: Republic of Serbia, autonomus region, administrative district, city, municipality, cadastral district, cadastral municipality, settlement, statistical and enumeration district. Enumaration and statistical circuit do not have names.
Digital terrain model (DMT) is represented by height points determined at the positions of a predetermined grid that characterize the height structure of the surface of interest. DMT of 1 m grid available in Republic Geodetic Authority is made on the basis LiDAR scanning data from the epoch 2012. Technology of creating a digital terrain model is an efficient way to get the given entities of the area position and height in the appropriate spatial coordinate system with the projected accuracy. The issuance of a digital terrain model is regulated by the Law on Republic Administrative Fees, which regulates the amount of the fee for services provided by the Republic Geodetic Authority.
Second order high accuracy leveling network is consisted of permanently marked and accessible fundamental and temporary benchmarks. Fundamental benchmarks represent the points approximately evenly distributed on the entire territory of the Republic of Serbia at the average distance of not less than 20 km, or not more than 50 km, which the complete precise levelling network relies on. Temporary benchmarks can be main and supporting. They represent the points distributed at the distance less than 1.5 km in the form of levelling lines between the fundamental benchmarks.