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Система инвестиционно-строительной деятельности (ИСД) рассмотрена как совокупность экономического пространства и времени. Задача системы ИСД состоит в достижении оптимального состояния за счет рационального использования системных ресурсов. Определены и рассмотрены подсистемы ИСД, их взаимодействие в системе координат. Пространство ИСД охватывает совокупность основных и вспомогательных процессов, поведение технико-экономической системы, режим ее функционирования в условиях устойчивого развития. Ключевые слова: инвестиционно-строительная деятельность, многомерная модель, экономическое пространство, системотехническое моделирование, управление в строительстве.

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Introduction. The development of transport infrastructure may be ensured through the reengineering of existing facilities of the same name, and also in conjunction with the construction of new buildings and structures in the convertible right-of-way. The objective of the research is to provide a scientific basis for the impacts within the framework of reengineering programs for transportation infrastructure facilities. In accordance with the chosen research area, reconstruction, technical re-equipment, renovation are considered to be the reengineering measures of individual transportation infrastructure facilities, and reclamation is the one of land plots in the right-of-way and adjacent territories. The management body acts on the object and subject with Regulatory Impact to achieve the set goals, recipients of the impact are the reengineering program participants, i.e. owners, contractors, clients. Materials and methods. The theory of Regulatory Impact Logistics and methodological provisions of simulation modelling are applied in the research. The research provides a diagram of the interaction of subjects, participating in the implementation of reengineering programs for transportation infrastructure facilities, to confirm the feasibility and substantiate the possibility of allocating resources between the works on facilities in the process of operational management. Results. The result of the research is a formalized description of the determining the execution of reengineering programs and formation of proposals for newly launched transportation infrastructure facilities. Conclusions. The results are established to form a possible basis for a system of information and analytical support for reengineering of transportation infrastructure facilities, this system, among other things, will contribute to the optimal consumption of material and technical resources and their effective supply schedule. Ultimately, this should lead to a reduction in the cost and duration of reengineering of transportation infrastructure facilities.

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Current trends in the science and practice of construction indicate the ability to control the economic means of phenomena and processes occurring in the area of investment and construction activities, towards the realization of sustainable development goals. In this regard, the subsystem of planning, funding and pricing implement the problems of resource maintenance of the building complex on the hierarchy levels, the maintenance of homeostatic equilibrium of the system, as well as measure the effectiveness and profitability of production and ensuring processes. The purpose of the article is the search for capability to determine the impact, which are the change in prices for certain types of material and technical resources or reduction of unit costs. Our results are aimed at creating a model for cost control (costs, profit) of an investment and construction project and the development of theoretical foundations of value engineering. Another result of the article is an equation with which you can simulate the effects of intensity changes of individual streams, such as pay increase under certain conditions of construction, changes in the income of an enterprises and other. The features of the article include the recording of the construction hierarchy levels at each time point which depends on the concentration of a certain amount of labor, equipment and the volume of material resources, an optimal distribution between objects and areas of activity, reducing material costs and improving productivity constant. In this case, not only an objective necessity is considered, but also crucial prerequisite for sustainable development. The use of these factors leads to a decrease in the cost of construction of the object as a result of productivity growth and is reflected in the implementation of the final price of construction products.

As practice shows, in conditions of crisis organizational problems and development issues, when accumulated contradictions lead to the competitiveness decline and loss of consumers, it is proposed an application of methods of reengineering, implementing turning around enterprises, organizations, companies through moving to a new quality level and modernization of the previously implemented engineering solutions of the functioning facility. The goal of the work is to find organizational forms of quality transformation of the solutions, having an anthropotechnical genesis (technical, technological, organizational, managerial etc.) through capital construction facility reengineering and technological process reengineering solutions. Literature sources and current construction standards analysis is carried out to implement the goal. Methods of the system analysis and management, comparison, expert evaluation are used. General definitions of the reengineering from Russian and foreign sources are given in the article. Criteria and factors of the reengineering events classification at the «construction facility – construction site» level are justified, the project of capital construction facility and technological process reengineering is set out, the capital construction facility reengineering structure is described, pattern solutions of the capital construction facility reengineering are formed, distribution of the reengineering types according to the stages of the life circle of the capital construction facility is presented. The structure of the capital construction facility reengineering standards is given and perspective directions of the information and analytical support development are indicated in the article. In the conclusion the fact, that reengineering is an effective mechanism of forming a comfort living environment, is justified based on the science and technology achievements, customer inquiry and most complete satisfaction, as well as the creation of the competitive edge of not only separate domestic construction organizations, but also the whole national construction field.