Figure 6-6 Deployment of Freeway Surveillance Systems: 1997

Source: U.S. Department of Transportation, Federal Highway Administration, Joint Program Office for Intelligent Transportation Systems, Tracking the...

Figure 5-31 Estimated Population Exposed to Airport Noise Levels of DNL 65 db or More: 1975-99

Sources: Exposure estimates: U.S. Department of Transportation (USDOT), Federal Aviation Administration (FAA), Office of Environment...

Vehicles: 1975-2025

Figure 4-19 Oceanborne Foreign Trade: 1975 and 1999

Source: U.S. Department of Transportation, Maritime Administration, Office of Statistical and Economic Analysis, data available at http://www.marad.dot...

Table 4-1 Top 10 U.S. Merchandise Trade Partners, by Value: 1975 and 1998 (Millions of chained 1996 $)

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Table 3-4 Factors in Bicyclist Fatalities: 1998

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Licensed Drivers: 1975-2025

Figure 5-23 Crude Oil and Gasoline Prices: 1970-99 (Chained 1996 U.S. dollars) (Annual totals)

Note: Gasoline prices are for regular leaded (1970-75) and for regular unleaded (1976-99).

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Figure 5-24 Nonattainment Areas for Criteria Pollutants: 1998

Source: U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, National Air Quality and Emissions Trends Report,...

Figure 4-21 Top U.S. Oceanborne Foreign trade Partners: 1978 (Exports to U.S./Imports from U.S.)

Source: U.S. Department of Commerce, Maritime Administration, United States Oceanborne Foreign Trade...