What specific tasks did the Chinese government perform regarding urban planning during this period?

 

What are the three main reasons why urbanization was limited between 1949 and 1980 in China?  What specific tasks did the Chinese government perform regarding urban planning during this period?  Has the urbanization movement in China been balanced regionally?  Why or why not?  What are some challenges that the Chinese government face regarding sustainable development?  What options are available to the Chinese government as it relates to urban planning techniques?