United States. Federal Highway Administration. Office of Highway Planning (1981). Our Nation's Highways: Selected Facts and Figures [1981]. United States. Federal Highway Administration. Office of Highway Planning. https://rosap.ntl.bts.gov/view/dot/66482
United States. Federal Highway Administration. Office of Highway Planning. Our Nation's Highways: Selected Facts and Figures [1981]. United States. Federal Highway Administration. Office of Highway Planning, 1981. https://rosap.ntl.bts.gov/view/dot/66482.
United States. Federal Highway Administration. Office of Highway Planning Our Nation's Highways: Selected Facts and Figures [1981]. United States. Federal Highway Administration. Office of Highway Planning, 1981, ROSA P. https://rosap.ntl.bts.gov/view/dot/66482.
Unless otherwise stated, all data in this publication are for calendar year 1981. Preliminary 1982 data are shown in some charts and graphs. Except where noted, the Federal Highway Administration is the source of the data, provided by the states. The information in the pamphlet is intended to be an overview of our Nation's highways of general interest to the average citizen. For more detailed data on many of the subjects covered, refer to the publication "Highway Statistics" published annually by the Highway Statistics Division, Office of Highway Planning, Federal Highway Administration.
United States. Federal Highway Administration. Office of Highway Planning (1981). Our Nation's Highways: Selected Facts and Figures [1981]. United States. Federal Highway Administration. Office of Highway Planning. https://rosap.ntl.bts.gov/view/dot/66482
United States. Federal Highway Administration. Office of Highway Planning. Our Nation's Highways: Selected Facts and Figures [1981]. United States. Federal Highway Administration. Office of Highway Planning, 1981. https://rosap.ntl.bts.gov/view/dot/66482.
United States. Federal Highway Administration. Office of Highway Planning Our Nation's Highways: Selected Facts and Figures [1981]. United States. Federal Highway Administration. Office of Highway Planning, 1981, ROSA P. https://rosap.ntl.bts.gov/view/dot/66482.
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ensure public access to scientific information.
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