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TABLE 1 Twenty Years of Key Transportation Indicators: 1994 and 2014

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System component 1994   2014   CAGR
Highway vehicle-miles traveled (millions) 2,296,378 1 2,988,323 2 1.33%
Highway ton-miles (millions) 4,676,163 3 5,899,165 4 1.17%
Highway public road mileage 3,905,211 1 4,115,462 2 0.26%
Air enplaned revenue passengers 508,458,194   708,401,299   1.67%
Air enplaned revenue tons (freight and mail) 8,718,082   12,390,344   1.77%
Air ton-miles (millions) 8,860 3 12,134 4 1.58%
Airports 18,317 1 19,453 2 0.30%
Rail intercity/Amtrak passenger-miles (millions) 6,091 5 6,804 6 0.56%
Rail ton-miles (millions) 1,041,929 1 1,725,634 2 2.55%
Class I rail mileage 116,626 3 95,387 4 -1.00%
Transit passenger-miles of travel (millions) 40,241 5 55,169 6 1.59%
Domestic water ton-miles (millions) 848,399 3 499,748 4 -2.61%
U.S. gross domestic product (billions of chained 2009 $) $9,905   $15,962   2.41%
Transportation fatalities 42,962 1 34,509 2 -1.09%
Transportation injuries 3,185,361 1 2,332,808 2 -1.55%

1 Statistics for 1993.

2 Statistics for 2013.

3 Statistics for 1991.

4 Statistics for 2011.

5 Statistics for 1992.

6 Statistics for 2012.

KEY: CAGR = Compound Annual Growth Rate.

SOURCE: Various sources cited in U.S. Department of Transportation, Bureau of Transportation Statistics, National Transportation Statistics, available at www.bts.gov as of July 2015.

Updated: Saturday, May 20, 2017