The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
the fundamental transformation of a city (its layout, land development, and public services) called for by current socioeconomic, sanitary, and architectural requirements and carried out on a scientific basis.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.