Purpose of this work is the investigation of the accuracy of plans of Lviv in 1844 and 1931. Methodology. The main criterion for evaluation of the authenticity of ancient maps is the study of their geometric accuracy, which is determined by the magnitudes of errors that arise when measuring lengths, angles, coordinates, and other cartometric attributes.
mean square error
The research have touched upon the analysis of normative-legal acts of Ukraine, which regulate precision of coordinates determination of boundaries angles of land parcels in the different types of settlements. Investigated the influence of these normative errors on the legitimate values of standard mean square error of determination of land parcels areas in settlements