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Introduction: The article addresses the business processes of the construction and operation of linear road sections. In the course of the study, we analyzed the geographic information system (GIS) of Avtodor company (developer: Indor-Soft, Tomsk) and its use in the operation and maintenance of transport infrastructure facilities at such road sections. In particular, we studied the construction of the Far West Krasnodar Bypass (FWKB), which is part of the North-South transport corridor, and its implementation by means of InfraBIM modeling. Purpose of the study: We aimed to describe the structured GIS database of Avtodor company by connecting various InfraBIM tools for the purposes of data generation and road model update. Methods: Analyzing the GIS of Avtodor company when using an InfraBIM model of road infrastructure, we studied the following: use of GIS features at the facility; asynchronous editing and selection of data without access to the Internet; database update. Results: InfraBIM models of linear road sections, developed in the implementation of such projects as the FWKB, make it possible to optimize time and save money when planning and introducing measures during the operation of transport infrastructure facilities.

From the position of system analysis, among the tasks that are solved in the framework of managing the functioning of the transport infrastructure, the tasks of monitoring the characteristics of the road network, traffic flows, and traffic control equipment stand separately. The solution of such problems requires tools that provide these processes with universal means of creating and dynamically modifying objects. Intelligent transport GIS "ITSGIS" is based on modern evolving information technology, combining the ability to create thematic layers of an interactive map, work with a database, with objects of transport infrastructure, with visualization of data in the form of interactive geo objects on a geographical map. The article discusses the methodological assessment of street lighting with the effect of light scattering in the ITSGIS intelligent transport geographic information system. The personified approach is implemented on the thematic layers of an interactive electronic map with visualization of the location of lighting geo-objects with modeling at night. Visualizing the illumination uses a new algorithm for calculating the scattering coefficient, based on calculating the deviation between the ratio of the distances from the current point to the focus and to the directivity and the eccentricity of the curve.

In the paper we study copulas obtained as a result of independence transformation of random vectors with Student's t-distribution. For the triangular scheme of dependent r.v. connected by such IT-copulas central limit theorem is proved. In addition, it is shown that two-dimensional IT-copula of Cauchy distribution is not associated.