United States Department of Transportation
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National Transportation Statistics (NTS) 1971: Summary Report
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1971-11-01
[PDF-165.91 MB]
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Alternative Title:National Transportation Statistics
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Abstract:This publication contains summaries of selected national transportation statistics. The summaries are of three types: tree displays, modal profiles, transportation trends. The data base from which the summaries have been drawn consists of time series covering the years 1958 through 1970, and has been published in two separate volumes. Appendices A, B, and C of this report are indexes to the data base. Data summarization involves the selection of certain statistics from the data base and displaying them in such a fashion that comparisons of transportation measures and trends can be made easily. The first step in this process is to place the selected data in a logical framework. In general, the data can be divided into three main categories: cost, inventory, and performance.
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Content Notes:National Transportation Statistics was formed by the union of: United States. Department of Transportation. Office of the Assistant Secretary for Policy, Plans, and International Affairs. Summary of national transportation statistics; and: Energy statistics.
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