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This paper responds to challenges made by city issues. A sustainable city is one that relates social ,environment and economic. Based on the three areas of social progress, environmental protection and economic development, the paper gives the compound system model of eco-city construction. Methods of Factor Analysis are used to establish a evaluation system of comprehensive developmental level of eco-city construction level in china and measure the level of eco-city construction level indoi:10.1016/j.proeng.2011.11.2025 fatcat:imva2tixsvapxbuxyjvlopxqcm