At the beginning of the preparatory stage, we receive the technical scope or work and prepare the contractual (contract) documentation. Then, the collection and processing of materials from engineering surveys of previous years for the survey area, as well as topographic and geodetic, cartographic, aerial photography and other materials and data held in their own or state funds, is carried out. Further, a program of engineering and geodetic surveys is prepared in accordance with the requirements of the customer’s technical specifications, taking into account the dangerous natural and man-made conditions of the territory.