The article examines the problems of economic losses associated with the impact of multistorey buildings on the adjacent street and road network. A general assessment of the current state of the considered issues is given both in Russia and abroad. The works and solutions to the problem under consideration are given in well-known publications and manuals. The research results of the Soyuz microdistrict, located in the Irkutsk city plan, are proposed. Its generating capacity, the proportion of visitors arriving by private road transport, its average occupancy and duration of parking are estimated. Special attention is paid to calculating the coefficients of daily unevenness, which show the uneven distribution of transport demand to the territory under consideration. A theoretical aspect of assessing transport demand is proposed, consisting of the generating capacity of multi-storey residential buildings, its distribution in the time aspect and the total intensity of individual motor transport. The calculation of the time 
losses of road users at the powering intersection of the Soyuz microrail was performed. Based on economic criteria expressed through an assessment of traffic delays, an assessment of the indirect economic 
effect is given in the absence of traffic management measures at the intersection in question. Ways to 
reduce the loss of time by individual-use road transport through measures to improve the efficiency of 
traffic management in the zone of influence of the Soyuz microdistrict are considered. 

 In the context of the growing importance of sustainable development, the integration of ESG principles is becoming a key direction in the transformation of the tourism industry, influencing both corporate governance and the investment component of tourism infrastructure. This study is devoted to identifying the managerial challenges faced by Russian tourism companies in implementing ESG approaches, as well as to developing practical tools and models that ensure the strategic adaptation of the tourism sector to the new agenda. In the new model of company management, special attention is paid to client-centricity as a connecting element between social responsibility, economic sustainability, and the investment attractiveness of projects. In the investment dimension, the development of modular collective accommodation facilities that comply with ESG strategy principles acquires particular importance. The study examines the features and challenges of modular hotel development, the correlation between modular accommodations and glamping as a modern form of ecological tourism infrastructure, as well as the investment mechanisms for their growth. The aim of the paper is to develop approaches for integrating ESG principles into company management models and the development of the tourism market infrastructure. Managerial barriers to ESG transformation in the Russian tourism sector have been systematized, international and domestic cases of implementing sustainable practices analyzed, and recommendations prepared for companies and public authorities on the institutionalization of ESG. The results show that successful ESG transformation requires managerial initiative, coordination of company actions with state and regional authorities, and investments in innovative and modular infrastructure, creating a foundation for sustainable tourism development in Russian regions. 

The construction industry is characterized by a complex structure of supply chains, which include many participants from the extraction of raw materials to the final implementation of projects. This is especially relevant for the regions of Siberia and the Far East, influencing their socio-economic development. Modern requirements of sustainable development require the integration of ESG principles into the supply management of building materials and services. The relevance of the study is determined by 
the increasing pressure from regulators, investors and the public on companies in the construction sector 
in terms of ensuring environmental safety, social responsibility and proper corporate governance in value 
chains. The aim of the work is to systematize the main ESG risks of the construction industry supply chains and develop approaches to their identification and minimization. The research uses methods of system analysis, expert assessments, and comparative analysis of risk management practices in Russian and foreign construction companies. The classification of ESG risks into three main areas has been carried out, highlighting specific factors characteristic of construction supply chains. The results show that the most important for construction companies are the environmental risks associated with the carbon footprint of materials, the social risks of labor rights violations in subcontractors, and the management risks caused by the lack of transparency of suppliers. The practical significance of the work consists in the formation of methodological recommendations for building an ESG risk monitoring system in the supply chains of construction organizations, which will increase the sustainability of the business and its investment attractiveness.

 The purpose of the work is to study the problem of developing an information model of bridge structures in the design process in the field of road construction. The use of information modeling technology in the field of road management allows for continuous monitoring of a construction facility at all stages of its life cycle. For the successful implementation of the information model design, it is necessary to organize all the processes of interaction between the design participants. It isrequired to create a specialized knowledge library in the form of a catalog with standard solutions that can be used in future projects, with the possibility of changing component parameters. The article discusses the technology of creating an information model of a bridge structure using the Renga software package. The scenario of the organization of design based on information modeling technology is shown. In this paper, the dependencies of the Renga software package tools with the elements of the bridge structure were selected. A 3D model of the bridge is presented with information on each element, which makes it possible to 
create a spatial model of an engineering structure. It is concluded that the use of the information model 
greatly simplifies the work with the projected object, providing a number of advantages over traditional 
methods of designing bridge structures. This approach to design increases efficiency, reduces the like lihood of errors,and promotes more effective collaboration between project participants. As a result, the information model provides a more holistic approach to design, contributing to the creation of a highquality and completed project. 

Целью данной работы является оценка потенциала нефелинового шлама, образующегося на Ачинском глиноземном комбинате, в качестве эффективного сорбента для очистки промышленных сточных вод от шестивалентного хрома (Cr(VI)). Проведены лабораторные эксперименты по изучению адсорбционной способности шлама. Определены химический состав и структура образцов методом рентгенофлуоресцентного и рентгенофазового анализа. Микроструктура оценена с помощью сканирующей электронной микроскопии. Рентгенофазовый анализ выявил, что основными компонентами шлама являются карбонат кальция и дикальцийсиликат. Отмечены высокие уровни дисперсности и щелочности материала. Электронная микроскопия показала пористую структуру шлама, обеспечивающую большую доступную поверхность для сорбции. Установлено, что термически обработанный нефелиновый шлам проявляет высокую сорбционную активность по отношению к ионам Cr(VI). Повышение температуры обработки увеличивает удельную поверхность материала и число активных центров, способствуя эффективному захвату и нейтрализации ионов хрома. Изменение pH среды также оказывает положительное влияние на 
процесс сорбции. Результаты испытаний показали, что использование шлама позволяет снизить 
концентрацию Cr(VI) до уровней, соответствующих нормативным требованиям по сбросу сточных 
вод в водные объекты. Использование этого отхода позволит снизить зависимость от импортных 
реагентов, уменьшить объемы складируемых отходов и улучшить экологическую ситуацию в регионе. Пористая структура шлама обеспечивает эффективное взаимодействие с загрязняющими 
веществами. Таким образом, проведенные исследования подтверждают перспективность использования нефелинового шлама в качестве эффективного и экономически целесообразного сорбента для очистки промышленных сточных вод от шестивалентного хрома. 

Topological optimization is a mathematical design tool that allows you to automate the search for the optimal distribution of a material in a given area, taking into account its properties, applied loads, boundary conditions, and limitations on strength and rigidity in order to maximize the efficiency of the structure. The application of topological optimization to the design of monolithic reinforced concrete structures is an important direction in the development of construction science and engineering practice. The purpose of the article is to systematize and analyze the main modern approaches, methods and algorithms of topological optimization used in the design of monolithic reinforced concrete structures of buildings and structures. In the course of the work, an analysis of scientific literature, including articles and technical reports, was carried out, which showed that the application of topological optimization to the design of monolithic reinforced concrete structures makes it possible to achieve a reduction in material consumption of up to 16-30 % while ensuring all the required criteria for strength and reliability of structures. Thus, this approach is a powerful tool to reduce material consumption while maintaining the load bearing capacity of structures. Promising areas are the integration of research with artificial intelligence 
technologies. The article may be useful for designers, researchers, and graduate students whose research is related to optimization issues. 

The article presents the results of the analysis of the term "conflict" in various regulatory documents. It has been established that there is no unambiguous definition of those collisions in digital information models of capital construction facilities that have a negative impact on the construction stage when using such models as working documentation. The definition of a collision in a digital information model is proposed – a design and construction spatial intersection of elements that negatively manifests itself at the construction stage. As a result of the expert study, the criteria for the applicability of digital information models of capital construction facilities as working documentation at the construction stage related to design and construction collisions were determined. The author's model for analyzing defects that occur at the design and construction stages is proposed in the form of an Euler-Venn diagram. It is determined that the intersection matrix is an effective tool for identifying design and construction spatial intersections of elements of the digital information model of a capital construction facility. An algorithm for forming an intersection matrix is proposed to identify collisions in the form of design and construction intersections of elements of a digital information model of a capital construction facility. 

The purpose of this work is to select the areas of optimization of factory-made reinforced concrete structures based on applied methods of reliability theory, in particular probability methods. The 
criterion for the need for optimization is a significant excess of the calculated reliability indicator over the 
normative one. Research methods include probability-statistical computer modeling and field tests at the 
Bratskzhelezobeton plant. In the presented work, the results of optimization of two types of precast reinforced concrete structures were obtained: multi-cavity floor panels of the 1.141-1 series and coating beams with mixed reinforcement of the 1.462.1-1/88 series. Optimization of multi-cavity floor panels was carried out in two directions: reduction of panel thickness (h = 160 mm) and development of lightweight panels for low-rise construction; replacement of one class of tensioned reinforcement with another more high-strength, caused by industrial necessity to ensure the initial reliability of these structures. The performed studies have shown that the problem of optimizing multi-cavity floor panels is logically justified both in terms of saving resources and increasing their reliability. As a result of probabilistic calculations of beams with mixed reinforcement, the optimal amount of non-stressed working reinforcement was determined with a partial prestressing coefficient in the range of Kr = 0.65...0.75. Modeling using the developed programs proved that taking into account the nonlinearity of deformation makes it possible to more accurately identify reserves for reducing the material consumption of structures and optimize its reinforcement. 

 The article examines the specifics of the use of building information modeling technologies in the construction of a modern Allegro railway wheel manufacturing plant located in the Titanium Valley special economic zone in Verkhnyaya Salda. The prerequisites for the introduction of BIM for this largescale industrial project, the methodology of its use at the design stage, including the choice of software and the organization of collaboration, are considered. The advantages achieved through BIM are analyzed in detail, such as improving the quality of design solutions, effective coordination of sections, and speeding up the release of documentation. A mathematical model for estimating the economic effect of collision avoidance is presented, based on average estimated data, confirming significant cost savings. Special attention is paid to the potential of using the created BIM model at the plant's operational stage as the basis for a digital twin that helps optimize maintenance, resource management, and incident re
sponse. The experience of the Allegro project demonstrates the high efficiency of BIM technologies for the implementation of complex industrial facilities, confirms their role as a tool for digitalization of the 
construction industry and is a successful example for replication in other large investment projects.

Environmental and economic risks for enterprises operating centralized wastewater disposal systems are represented by both the risk of soil contamination in case of emergency wastewater spills and the risk of contamination of water bodies by wastewater discharge into them. The amount of payments for damage to the soil cover can be in the hundreds and millions of rubles and depends mainly on the area of the sewage spill. Modern methods of encouraging water users to use better wastewater treatment facilities and technologies are mainly reduced to increasing the amount of payments for non-compliance with established requirements for the quality of treated water. Such an approach will inevitably lead to an increase in utility tariffs. Economic incentives for water users to introduce the best available technologies in water treatment are aimed at applying increasing coefficients when calculating fees for negative impacts. At the same time, for operating organizations, it would be advisable to provide a system of lowering coefficients with a significant reduction in the amount of pollutants discharged in comparison with the established regulatory indicators. Such a differentiated approach will create a real interest of operating organizations in ensuring the quality of wastewater treatment and in upgrading equipment.

The purpose of this work is to study the effect of physical wear of structural elements on the life cycle of a capital construction facility as a whole. Based on the results of numerous surveys of buildings, significant shortcomings of the existing methodology for determining physical wear have been identified, which justifies and plans repair measures for further operation to ensure trouble-free operation of structural elements and engineering systems. Modern reality is characterized by the objective need for excessive operation of construction facilities and, first of all, multi-storey residential buildings. Checking their compliance with modern operational and moral requirements is associated with the need to conduct an inspection and determine the level of physical deterioration of the building. Its practical implementation is based on a generalization of the detected defects, malfunctions and damages of structural elements and components of their interfaces according to the criteria of the modern cost of analogues. This approach does not allow us to take into account the accompanying changes in the technical parameters of the operational indicators of buildings, which determine the need and type of repair and restoration work. The article proposes an original method for summarizing the existing faults, taking into account their impact on the operational reliability of the building according to the criterion of probable progressive collapse. An example of its implementation for two structural schemes of panel buildings of the 1-335C and 1-335(KS) series is presented. The results of determining the physical wear of wall fencing using the adjusted methodology for buildings of the 1-335C (incomplete frame) and 1-335KS (complete frame) series showed their significant difference in the same areas of wall panel collapse. A new technique for determining the physical wear of structural elements can be used at almost all stages of the building's life cycle. 

The purpose of the research is to find new approaches to explaining the management processes of capital construction facilities at the stages of organizational and technological design and construction production of their life cycle from the perspective of flow theory. The flow concept of the functioning of construction processes is based on the theory of transformation-flow-value, which allows us to consider construction processes as dynamic systems with continuous movement of material, financial and information flows. The research methodology is based on the analysis of foreign regulatory documents regulating the management of organizational and technological design and construction production, as well as scientific publications on the results of research on flows in construction. The methods of analysis, abstraction and analogy are used to identify the specifics of the flow behavior in the construction system and to formulate conclusions about the impact of individual flows on the overall reliability of the construction site. The results obtained reflect the current state of management at the stages of organizational and technological design and construction production, identify trends in their development and present a new interpretation of construction processes from the point of view of the flow concept. It is concluded that it is necessary to integrate inter-flow interactions into the control process, since the stability of an individual flow is determined not only by its internal reliability, but also by the nature of its interrelationships with other elements of the system. Traditional deterministic management methods are insufficient to meet the requirements of the modern construction industry, requiring the development of a fundamentally new approach — the physics of the management process. This approach combines classical 
concepts of construction processes with modern views on the behavior of flows, providing a deep under
standing of the internal structure and increasing the efficiency of organizational and technological design 
and construction production. 

The article outlines the main provision of the Russian Federation GOST R 58785-2019 "Life cycle cost assessment for efficient operation of water supply and sanitation systems and facilities", which demonstrates positive domestic experience. The use of this GOST contributes to a positive impact on the processes of bidding and participation in tenders for work related not only to the implementation of each stage of the life cycle, but also to the supply of necessary materials and structures for the implementation and maintenance of wastewater disposal facilities. Also, the article reveals and identifies the problem areas of using the life cycle cost criteria, which consist in the lack of instructions and difficulties in their implementation in practice. The problems mentioned in the article can be solved by developing new and improving existing methods for determining the cost of the life cycle. The article analyzes the critical goals and objectives facing managerial decision-making at all stages of the facility's life cycle. Modern conceptual approaches to working with the life cycle of a real estate object are outlined. The current aspects of improving the efficiency of managing the life cycle of capital construction facilities are presented. An 
objective description of the economic life of the real estate object is given. 

When making decisions on the placement of road and railway route plans, the location of bridge crossings and other transport infrastructure facilities, it is important to assess the size of capital investments. A significant part of the cost is the provision of engineering protection. In this paper, a method is proposed for the integral assessment of the need for the construction and selection of protective structures of transport facilities from the hydrodynamic effects of sea waves. An algorithm is described for determining the degree of need for engineering protection of transport facilities and their infrastructure based on an analysis and expert assessment of the state of the coast, facilities and processes in the coastal zone of the seas. Consideration of the influence of objects and processes in the coastal zone when choosing the type of engineering protection structures from the hydrodynamic effects of the natural 
aquatic environment is proposed to be determined by quantitative integral assessment. A preliminary consolidated estimate of the cost of engineering protection measures is given, depending on the degree 
of need for protection, which, in turn, is numerically expressed by the degree of need for the construction 
and selection of the type of engineering protection structures. The results of the study can be used to 
assess the risk of an accident (by determining the hazard coefficient based on an indicator that takes into 
account the possible consequences and the amount of material damage caused by the accident), as well 
as to determine the aggregated economic indicators of the construction cost. 

This article is devoted to the consideration of the most significant objects of the post-Soviet period in Irkutsk. The purpose of the study is to identify their stylistic features and basic shaping techniques. The work carried out included updating a number of bibliographic sources aimed at the professional audience of the region, field surveys with photographs of key facilities in 1990-2010, and direct communication with the authors of the buildings under study. The multidimensional nature of the designated period leads to a consistent and equivalent study of the planning and sculptural-artistic component. Based on the results of the research, the article presents a part of the collected photographic database and a table with a brief description of the details that most clearly form the figurative identity of the modern architecture of the city. By systematizing the found materials, the author attempts to provide a scientific description of the cultural significance and role of postmodern trends in the modern architectural process of the city, both from the practical design perspective and in the context of the educational process of the historically established school of Siberian architects. All this made it possible to prove that at the turning point of the epochs Irkutsk architects managed, while preserving the rich heritage of the Brutalists and 
their relevant experience, to meet the challenges of modernity with a humane, rational and artistic addition 
to this fund. Moreover, Irkutsk post-brutalism, which has not changed the principles of appeal to man and 
the human scale, has become a concrete, flattened example of willpower and creative perseverance for 
the second quarter of the century, which has become increasingly complicated in economic factors and 
the resulting overurbanization. 

The relevance of this study is related to the need to form multi-profile centers for domestic and stray animals in Russian cities that would offer a full cycle of veterinary services from birth to death of a pet and from regular care to complex medical manipulations. The problem of the study lies in the lack of study of the issues of the competent organization of the architectural space of a complete enclosed cycle of services for domestic and homeless animals and the lack of an architectural typology of such centers. The purpose of the work is to comprehensively assess the condition of existing facilities for domestic and homeless animals based on domestic and foreign experience. The objectives of the study are to identify existing reference foreign and domestic analogues of such complexes and their individual modules, identify the main factors of these facilities, and form a comprehensive assessment of the condition of existing facilities of the selected infrastructure. Based on foreign and domestic experience, the results of the analysis of spatial planning solutions for facilities for pets and stray animals revealed their patterns and features in design principles, obtained their spatial planning models, and formed a comprehensive assessment of the current state of facilities. The significance of the results obtained lies in the fact that a comprehensive assessment of the state of existing facilities makes it possible to identify the main influencing factors and formulate the principles of forming an ideal model for the development of the complex on the basis of separately existing facilities in the pet service sector.