城市与规划精髓——内与外、大与小、凹与凸（The essence of city and Planning -- inner and outer, big and small, concave and convex）.doc

城市与规划精髓——内与外、大与小、凹与凸（The essence of city and Planning -- inner and outer, big and small, concave and convex） 1 inside and outside The two war Center North American city is commercial and residential mixed together. Beyond the center is to residential, with some commercial and service industries, in addition to industrial area, warehouse area and wholesale business district etc.. In the center of the region, noble houses, slums and middle-class residence near each other. The center area outside living mostly middle class. Only rich people can afford to live in the suburbs. After the two World War, the population explosion, the city spread out. Downtown renovation, construction of new office buildings, shopping malls, hotels and other places of entertainment. The old slums into a high-rise apartment, but still live in slum. Not converted into old crime spots or shelter evil people and countenance evil practices become a vagrant and poor shelter. The downtown area day prosperity, is a danger zone and no zone at night. The middle class moved to suburban areas. They work day and night back to the downtown area, suburb residence sleep, sometimes to go shopping or entertainment center. So the suburb becomes the metropolitan city dormitory, monotonous and boring. With the metropolitan city, increasing the scope of daily commuting time, more and more, more and more traffic congestion. Employers in order to improve the efficiency of the workers, the store owner for the convenience of customers, took office buildings, stores and factories moved to the suburbs to workers and customers. The suburbs began to appear new city. Work, shopping and entertainment transfer from downtown to the new city center. The edge city (edge city) is the name for Washington Post in the United States special reporter Joel. Cano (Joel Carreau) interview, after years of research, published in 1991, named after the book and come. This book is basically anti planning, very influential. Cano (Carreau) be