A Study On The Development And Planning Of Chinese Three-line City

After the establishment of the PRC in 1949, great changes were taken in the society nature and economic structure all over China. During this period, two key forces was influencing the Chinese city planning in the aspects of idea, theory and technology, which was Chinese early-modern city planning and Soviet Union city planning. In the year between 1960 and 1980, the environment of war-protection began to form as a result of the nervous international background. And as the friendship with Soviet Union was broken, the city planning developed individually after.This paper starts with the political thoughts of war-protection, combs the development vein of the three-line construction, and discusses the scientific theories and construction practices with examples in city planning under the "planning absence" environment. Then it makes comments on the construction progress and results, and reaches the following conclusions by analyzing the changes of the professionals, planning and construction institutions. And the conclusion is that the three-line city planning and construction have obtained some achievements in both way of implicitness and explicitness, that is the direct influence made by political force and the indirect influence made by the technical personnel.The writer investigates several three-line cities and three-line factories, interviews the old professor who took part in the construction back then, and gets the fresh data in order to create a solid foundation for the study. And this paper aims to perfects the research of Chinese modern city planning history by studying the special period of three-line construction, and provides reference for the war-preparation planning during the peaceful era today.