一、收费公路的发展 　　1国外收费道路的发展 　　18世纪末，美国私营公司完成的由费城到兰开斯特公路是世界上第一条具有重要意义的收费公路。 19世纪中叶，美国政府部门通过提供土地特许和补贴支持私营收费公路网络的建设，私人经营的收费公路里程超过了 10000英里。 19 I. Development of toll roads 1) Development of toll roads abroad At the end of 18th century, the road from Philadelphia to Lancaster Road completed by U.S. private companies was the world’s first important toll road. By the mid-19th century, U.S. government agencies supported the construction of a network of private toll roads by providing land concessions and subsidies, and privately operated toll road miles exceeded 10,000 miles. 19