The article discusses a methodology for improving the energy efficiency of historical buildings that have objects of protection. The main ways of energy saving, which are revealed at the level of the microclimate of the premises, are also considered. The relevance of the topic is due to the complexity of performing work to improve energy efficiency if it is necessary to preserve the historical value of cultural heritage sites. The article proposes organizational and technological measures that allow optimizing costs by reducing losses of thermal energy, by modernizing heating, ventilation and air conditioning systems in the conditions of the historical development of the city of St. Petersburg.

Keywords: energy efficiency, construction organization, engineering systems, restoration work, historical buildings

The article is devoted to solving the problems of choosing a variant of the calendar plan in the complex development of residential microdistricts. At present, a methodology for linking construction and installation works in time and space is being developed, new methods for calculating the organization of work are emerging. Due to the constant change in regulatory requirements in construction, the essential characteristics of scheduling methods change. Variant analysis may include a sufficiently large number of indicators of the quality of the organization of complex development. Therefore, a method for comparing options and choosing the best one is proposed, which takes into account an unlimited number of indicators of the quality of work organization.  At the same time, different indicators can be taken into account for different regions, as well as new ones can be added. The effectiveness of the methodology is analyzed on the example of a residential area.

Keywords: residential area, variant analysis, flow organization of work, quality indicators, regulatory requirements

The article shows the procedure for structuring work on the creation or repair of linear objects on the example of highways. It is proposed to carry out the effective interconnection of works on the basis of improving the theory of complex flows. The formation of object flows is proposed, for this the entire length of a linear object is divided into separate sections, for which object schedules are developed. Object schedules are linked into a single complex flow. The results of calculations for combining object schedules according to various principles and their variant analysis to select the best variant are presented.

Keywords: linear objects , construction works, object schedules , single flow , work structuring, variant analysis

The paper considers the issues of the development of executive calendar plans formed during the implementation of the construction of objects of integrated development of the territory (CAT). The complex development of the territory involves, in addition to the construction of residential facilities, the construction of transport, communal and social infrastructure facilities. The author propose a methodology for analyzing executive calendar schedules (ECG) based on the experience of implementing CAT projects. ECG analysis is aimed at developing improved schedules that are used in the development of organizational and technological documentation (OTD) for similar complexes. The methodology allows us to take into account the real conditions of construction of facilities and the capabilities of construction and installation organizations, which increases the feasibility of calendar plans as part of the department.

Keywords: executive calendar schedules, complex development of the territory, reasons for downtime, improved schedules, duration of work on objects