The article highlights the methodological aspects of the architect's work in the historical environment, reveals current trends and processes of transformation of the architectural and urban planning structure of historical cities. The main approaches to their reproduction and transformation are considered and analyzed. The concept of the central part of the historical city and the method of localization of its borders are revealed. The main requirements for the reproduction and development of buildings in the central part of historical cities are highlighted.
Deficiencies in the traffic infrastructure in central Lviv lead to congestion and obstruction of pedestrian movement as well as pollution, but the main reasons of these problems are not physical. They lie in the absence of efficient administrative and legislative measures for the management of stationary traffic.