Study of population size hierarchy is the groundwork of the city planning. It is important to the population forecast of cities and urbansystemplanning.
The term "urban and rural planning" as mentioned in this Law includes urbansystemplanning, city planning, town planning, township planning and village planning.
本法所称城乡规划，包括城镇体系规划、城市规划、镇规划、乡规划和村庄规划。
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The paper deals with some important problems including urban area concept, residential structure, urban morphology evolving by stage, and urbansystemplanning of municipal area.