最近十年来,美国用于公共基础设施的投资已达7500亿美元,大致是现在美国国民生产总值的50%。这笔对基础设施的支出,都是在“零敲碎打”、临时需要的基础上花掉的。只是最近我们才认识到,这笔巨大的投资必需在各方面协调配合才能获得经济效益。最重要的是,迄今还没有把基础设施作为必需的公共服务设施整体来加以全盘考虑。 In the past decade, the U.S. investment in public infrastructure has reached 750 billion U.S. dollars, roughly 50% of the U.S. gross national product. This expenditure on infrastructure is spent on the basis of “fragmented” and temporary needs. Only recently did we realize that this huge investment must be coordinated and coordinated in all aspects to obtain economic benefits. The most important thing is that so far the infrastructure has not been considered as a whole as a necessary public service facility.