Activities fotr timely removal of growing unwanted tree and shrub vegetation (TSV) for the maintenance of transport linear infrastructure facilities in proper condition in accordance with the requirements of a number of regulatory documents have been organized. Taking into account previously revealed insufficient study of the issue of determining the possible effectiveness of the use of certain technological processes for TSV removal in various natural and industrial conditions, the purpose of the study was to determine the values of capital investments for the formation of machine systems, mechanisms and equipment for the implementation of technological processes for removing unwanted tree and shrub vegetation from territories of linear infrastructure objects (LIO). A system of machines, mechanisms and equipment of various technical levels and price categories was proposed to implement the research goal of removing TSV from the territories of LIO. The system corresponds to modern concepts and trends in the development of technology in the field of logging and forestry. With the help of mathematical apparatus proposed in the article, the author has obtained intervals and amounts of capital investments for the formation of machine systems for the most characteristic technological processes for removing TSV. The term "plateau of capital investments for the formation of machine systems" has been proposed and recommendations for production on an economically justified comparison of a number of technological processes in order to identifying opportunities to replace them have been made.

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Work on the collection and raking of chopped residues in the territories of linear infrastructure facilities is often carried out by specialized equipment in-stalled on tractors or multifunctional machines and called «Forest rakes», moreover, the specified equipment can be classified according to a number of characteristics. Taking into account the significant influence of the subjective component identified by the author, which has an impact on the direct assignment of classified forest rakes to one or another element of the corresponding classification series, the purpose of the study was to develop a mathematical model for the classification of technical means for collecting and raking up chopped residues. The author substantiated the initial boundary conditions and presented a mathematical model for the formation of a visualized volume of distribution of the main design parameters of a forest rake, the values of the criterion of the density of the distribution of teeth of the means of mechanization of removal of cut residues, as well as the criterion of the specific width of these technical means, examples of the classification distribution of forest rake models according to the specified criteria are given, the assumptions and explanations for the considered mathematical model are stated, which makes it possible to carry out an objective classification of the means of mechanization of collection and raking of chopped residues, formulated conclusions based on the results of the study conducted by the authors