The necessity of dynamic management of a large number of equipment and personnel performing the construction, repair, prevention and screening measures on pipelines makes the task of «snap» of moving object geographical coordinates to the linear part of the main pipeline urgent. The main aim of the study is to develop the linear mapping technique of the moving object geographical coordinates to the linear part of the main pipeline, based on the data on a discrete set of its specific geographical origin. The methods used in the study: vector algebra, geometry of the Earth spheroid, arithmetic error, heuristic methods of direct search methods of data compression, linear interpolation functions. The results. The authors have stated the problem of linear mapping coordinates of a moving object to the linear part of the main pipeline. The paper describes the methods of solving this problem based on the data on a discrete set of geographical coordinates of kilometer stretch of the linear part of the main pipeline and introduces the results of using the method for converting the data of aerovisual observation of the site of the linear part of the main pipeline «Aleksandrovsky - Anzhero-Sudzhensk»; considers the interpolation properties of the technique with a lack of information on the geographical coordinates of kilometer stretch of the linear part of the main pipeline. The authors estimated the error of the method based on these assumptions, which does not take into account the elliptical shape of the earth in the calculation of the distance between two points on the earth's surface. The estimation error for the data of aerovisual observation site of the linear part of the main pipeline «Aleksandrovsky - Anzhero-Sudzhensk» was calculated. The authors proposed the method for processing information on a set of geographical coordinates of the mobile object based on the limit value of the object distance from the axis of the linear part of the main pipeline for the given configuration of pipelines security zones. It is shown that the sharing of the developed technique of linear mappings and data processing method makes it possible to compress the data on the trajectory of the moving object after converting them into a variety of areas surveyed of the linear part of the main pipeline.