Methods for managing the life cycle of capital construction objects considering the impact of environmental and other types of risks

Introduction. The methods of environmental impact optimization are presented, including: a graphical method for creating an area of acceptable impacts by solving linear programming problems; a model for the identification of hazardous impacts by the simplex method; a method of forming sustainable management systems of ecological safety of construction.Materials and methods. The methodology of environmental and risk management is based mainly on international management standards (Environmental management & Risk management). Using simple numerical examples, the possibilities of mathematical modelling of environmental loads at the stages of the life cycle of construction facilities are illustrated. The paper considers linear equations of action with constraints and with two variable factors of influence. If we pass to linear dependencies with three variable factors of influence, then they will describe a plane in the three-dimensional space of influence. The system of linear constraints represents a polyhedron as the area of permissible impacts in the three-dimensional impact space.Results. Studies conducted by the graphical method of constructing the area of permissible impacts when solving environmental problems of linear programming showed its effectiveness and clarity, compared to the results obtained by computational method. The most effective is the development of environmental safety management systems for construction related to waste sources, as well as the management of the composition and treatment of waste streams, in order to promote the prevention of waste generation, as well as the recovery and recycling of waste from the construction industry.Conclusions. An important area of development of methods is to increase the efficiency of resource use and reduce the cost of construction and operation of facilities. For this purpose, new technologies and materials will be used, as well as well as the processes of construction and operation of facilities will be optimized.

carbon impact, environmental management, environmental risk, risk management, environmental management system, environmental aspect, emergency situation, capital construction facility