Geographic Information Systems Conference and Exhibition “GIS ODYSSEY 2017”, 4 th to 8 th of September 2017, Trento – Vattaro, Italy Conference proceedings 323 INFLUENCE OF PUBLIC ROADS DEVELOPMENT ON THE CADASTRAL DATA  Ernest Rymarczyk, M.Sc. District Office in Jędrzejów Department of Geodesy, Cartography, Cadastre and Real Estate Management Jędrzejów, Poland e-mail: e.rymarczyk@gazeta.pl Prof. Piotr Parzych, Ph.D. AGH University of Science and Technology Department of Geomatics Cracow, Poland e-mail: parzych@agh.edu.pl Jarosław Bydłosz, Ph.D. AGH University of Science and Technology Department of Geomatics Cracow, Poland e-mail: bydlosz@agh.edu.pl – contact person Abstract This paper presents the analysis of the impact of public roads development on the structure of parcels, as well as on land and buildings cadastral data. The analysis was performed on land cadastre documentation in which the public roads development had been made under the provisions of special act on preparation and permission for public roads development, as well the geodetic documentation prepared for the process. The analysis shows that such a documentation prepared for the process based on the special act results in land cadastre data update. The road development process causes changes not only in the cadastral records but also in land parcels (within the farm) configuration. Key words: public roads, cadastral data, development. Introduction Credible and reliable and up-to-date information allows to make the right decisions. This aspect concerns practically every sphere of life, including assets such as real estate. Therefore, as societies were evolving, various registers were created to collect information about land, buildings, and utility networks. The first real estate information comes from ancient times and has gradually evolved to the present day. Creation of real estate uniform system (more precisely on land) for Poland started after the Second World War. Its main purpose was (as with the rest of most land information systems) data collection for tax purposes. The reason was to unify real estate tax systems that were left after the Polish territory annexation by Austria, Prussia and Russia had ended. At present, such a system for collecting real estate data and providing the basis for economic and spatial planning, taxation, real estate identification in land register and public statistics [USTAWA, 1989] is the land and building cadastre. It collects information about land, buildings and premises and its owners (tenants). In addition, the legislator has imposed on the authorities responsible for it [ROZPORZĄDZENIE, 2001] that the database of land and buildings is kept up-to-date with specific requirements. This is understandable because of the changes in space (and hence in the data included in cadastre) resulting from human activity. One of the human activities that affect the data collected in cadastre is public roads development. It is based on the provisions of the act on special rules for the preparation and implementation of road development concerning public roads [USTAWA, 2003]. * This work is financed from funds science realized at AGH University of Science and Technology, allocated for the year 2017, no 11.11.150.006.