当前,世界经济形势仍不稳定,国际货币基金组织、世界银行等机构纷纷预测全球金融危机还会继续蔓延,世界经济仍然处于艰难时期。从各国城市应对历次经济危机的经验来看,基础设施建设都是宏观调控、增加就业人口的重要手段,大力发展基础设施建设有利于刺激内需,对拉动国民经济的增长具有重要的现实意义。从宏观数据来看, At present, the world economic situation is still unstable. The International Monetary Fund and the World Bank have all predicted that the global financial crisis will continue to spread. The world economy is still in a difficult time. Judging from the experience of various cities in handling economic crises in various countries, infrastructure construction is an important measure to macro-control and increase the employed population. To develop infrastructural facilities is conducive to stimulating domestic demand and has an important practical significance for stimulating the growth of the national economy. From the macro data,