In general, the existent topographical maps of the Romanian territory are made by using on of the systems of cartographical projections: Stereographical projection – 1970, Gauss-Krüger or UTM (Universal Transversal Mercator). Each of these systems of cartographical projections has advantages and also disadvantages. One of the basic criteria in using a cartographical projection for a certain cadastral territory is that the relative linear deformation should be as small for that geographical area. The maps from the UTM projection have a great importance in the sea navigation and in the air navigation, because it is a conform projection, and the cartographical network is made from perpendicular lines, plain will be a right line. The same line makes with each of the meridians projection the same azimuth.

cartographical projections; Gauss – Krüger; Mercator; deformation

Presentation: oral