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引言 美国现有的公路筹资体系还无法形成可 满足国家对公路投资所需的基金。 这可以从公路筹资的现状和维持公路网络的现有性能水平所需的年投资额来得到证明。对现有筹资体系的任何调整,都应取决于重新对所有可行的公路筹资方案作系统性的评价。
INTRODUCTION The existing system of financing of roads in the United States still fails to form a fund that meets the country's need for road investment. This is evidenced by the current status of road financing and the annual investment required to maintain the current performance level of the road network. Any adjustment to the existing funding system should depend on the systematic reassessment of all viable road financing options.