Abstract. Calendar planning is a key tool for efficient management applied in many industries: power, oil & gas, metallurgy, and construction. As a result of the growing complexity of projects and arising need for improvement of their efficiency, a large number of software tools for highquality calendar planning appear. Construction companies are facing the challenge of optimum selection of such tools (programs) for distribution of limited resources in time.The article provides analysis of the main software packages and their capabilities enabling improvement of project implementation efficiency.

This article studies modern software packages used in drawing construction master plans and their elements. A special emphasis is placed on increasing the level of design works, improving their quality, and expanding the community of technically unskilled users. The article describes approaches to solving the task of visualization of organizational and technological solutions and gives a comparative analysis thereof. It presents a visualization diagram of an organizational and technological solution for the construction of a building. It also highlights the most promising direction in graphic modeling of a construction process for buildings and structures with visualization seen as the most objective solution to address the assigned task.

The article deals with the stages of choosing organisational and technological solutions for the construction of buildings. Three approaches to choosing an optimum organisational and technological solution are presented, compared, and analysed. A chart is given for choosing the organisational and technological solution to erect a building. The most promising approach to finding an optimum is highlighted, namely modelling of the construction of buildings, structures, and complexes as the most effective and justified approach incorporating the best aspects of the first two and offering an opportunity to accomplish the task in the most objective way.

No abstract

The construction process is implemented by methods differing from each other in the materials, mechanisms, tools, construction equipment used, as well as the qualitative and quantitative composition of the units and teams of workers. Each of these factors, in turn, is characterized by certain engineering, technical and economic indicators. Therefore, precise optimization models play an important role when assessing and selecting rational values for the parameters of technical, organizational and engineering solutions. Different methods and models can be used including direct enumeration of alternatives when choosing the optimal (rational) values of the parameters characterizing technical, organizational and engineering solutions. Models of this kind are extensively described in the literature and are widely used in practice. Such optimization problems are solved using a variety of methods of linear, nonlinear, stochastic programming. One of these methods is described in this paper.