Figure 1 - Average Household Transportation Expenditures and Vehicle-Miles Traveled: 1984-2000

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Air Pollutants - Box 1

While the U.S. Environmental Protection Agency (EPA) has made annual estimates of emissions of six principal (so-called, criteria) air pollutants covering several decades, it has only recently concentrated on the larger set of hazardous (...

Figure 1 - U.S. Carbon Dioxide Emissions from Energy Use by Sector: 1990 and 2000

(Millions metric ton carbons)

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Table 3 - Top 10 U.S. Maritime Trade Partners by Value and Weight: 2000

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Table 1 - U.S. Gas Transmission Pipeline Incidents: 1995-2000

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Table 3 - Recreational Boating Accidents Due to Operator Error: 2000 

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Figure 2 - Aerospace Exports and Imports

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SOURCE: Aerospace Industries Association, Aerospace Statistics, available at http://www.aia-aerospace.org/stats/aero_stats/aero_stats.cfm, as of Feb. 24, 2002.

Table 3 - Occupational Fatality Rates of Transportation Occupations: 1993-2000

(Per million employees)

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Figure 1 - Roads in Poor or Mediocre Condition by Functional Class: 1993-2000

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SOURCE: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual issues).

State of Transportation Statistics - Box 1

Transportation is about movement. Each movement of people or goods has a starting and ending point and follows a route. The size of such movements, as well as the potential demands for future travel...