Figure 1 - Energy Intensities of Passenger Modes: 1980-1998

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Automobiles

Buses

Certificated air carriers

Rail

KEY: Btu = British thermal units.

SOURCE: Stacy C. Davis, Transportation Energy Data Book, Edition...

Table 1 - Leaking Underground Storage Tank Releases and Cleanups

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Figure 1 - Transportation's Share of U.S. Petroleum Use: 1973-1999

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SOURCE: U.S. Department of Energy, Energy Information Administration, Annual Energy Review 1999 (Washington, DC: July 2000), table, 5.12.

Table 1 - Reported Oil Spills in U.S. Waterways: 1989-1999

Thousands of gallons

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Table 2 - Growth-Related Environmental Issues and Impacts

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Figure 2 - People Living in High Noise Areas Around U.S. Airports

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NOTE: The DOT Performance Plan (FY 2001) and Report (FY 1999) lists a preliminary estimate of 680,000 people exposed in 1999.

SOURCES: Exposure: U.S. Department of...

Figure 1 - Disposition of Used Lead-Acid Batteries

Passenger cars, trucks, and motorcycles

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SOURCE: U.S. Environmental Protection Agency, Office of Solid Waste, Characterization of Municipal Solid Waste in the United States (Washington, DC:...

Figure 2 - Modal Share of Key Transportation-Related Air Pollutants: 1998

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KEY: CO = carbon monoxide; NOx = nitrogen oxides; VOC = volatile organic compounds; PM-10 = particulate matter 10 microns in diameter or smaller.

NOTE: Other...

Table 1 - U.S. Carbon Dioxide Emissions from Transportation: 1990 and 1999

(Million metric tons of carbon)

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Aircraft Noise - Box

Sound is measured on a logarithmic (nonlinear) scale in decibel (dB) units. There are different dB scales. Transportation noise is usually measured in dBAs, the so-called A-weighted scale that emphasizes sound frequencies that people hear best. On...