美国州际与国防公路系统

本文介绍美国州际与国防公路系统的发生、发展、规划、设计标准、建设规模和经费来源、修建中的问题、目前状况、以及修建完成后在国防与民间运输上的意义。超级公路总长仅占全国公路总里程的1%,但在和平时期要负担全国公路运输任务的1/5。

System of Interstate & Defence Highway in U.S. America

The contents of this paper are introducing briefly the intertate and defence highway sy stem in U. S. America, i. e. to be known as freeway, here refering to its generation, development, planning, standard of design, scope of facilities and source of finance, problems in construction, conditions at present, and its significations after completion in defence and transportation among the peole. The total length of freeway is only about 1% of entire mileage of highway in U. S, America, but carrys as much as 1/5 of American highway transportation in peaceful period.