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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

General

Legacy ID
201

Figure 5-1 Dependence Ratio: 1950-2030

Figure 5-1 Dependence Ratio: 1950-2030

Source: U.S. Department of Commerce, U.S. Census Bureau, Statistical Abstract of the United States (Washington, DC: Various years); U.S. Census Bureau, Projections...

Chapter 5: People, Energy, and the Environment

Chapter 5: People, Energy, and the Environment

"The transportation enterprise must be equitable, flexible, and sensitive to environmental issues. We must keep in mind that transportation is a meansnot an end; the common good must take priority over specific...