The current publication examines some useful combinations of different geodetic methods - classical and modern, used for performing precise setting out works, during the construction process. Mainly, for choosing a balanced solution in terms of accuracy, execution time and logistics - available geodetic tools and team of specialists. Particular attention is paid to some specific engineering structures, with a high degree of wide-ranging control. Regarding the accuracy of fixed elements in plan, height and orientation of construction axes. The combination of conditions, namely for a specific geographical orientation and precise relative accuracy of the construction elements, requires some corresponding transformation from geodetic, ellipsoidal coordinates to a selected projection plane, on the basis of the Setting out plan of the site. In this regard, the acceptable accuracy of determining the geodetic, ellipsoidal coordinates obtained by Global Navigation Satellite Systems (GNSS) have been investigated. In addition, the required accuracy of the subsequent setting out tasks, in plan and height. An approach for preliminary assessment of the accuracy is presented by using some different variations of geodetic methods and tools. The presented mode allows a science-based choice of the most appropriate geodetic method or combination of methods, during setting out activities for specific engineering structures. Theoretical assessments are supported by results of geodetic tasks from the author's professional practice, realized by using different geodetic methods and tools.

Engineering geodesy, setting out works