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2-3: Gross Domestic Product by Major Social Function, 1989–94 . . . . . . . . . . . . . . . . . . . . 40<br />

2-4: Contributions to Gross Domestic Product: Selected Industries . . . . . . . . . . . . . . . . . . . 41<br />

2-5: Intermediate <strong>and</strong> Final Uses <strong>of</strong> For-Hire Transportation Output by Mode, 1987 . . . . . . . 43<br />

2-6: Direct <strong>and</strong> Indirect Transportation Costs Per Dollar Final Dem<strong>and</strong> . . . . . . . . . . . . . . . . . 44<br />

2-7: Transportation Expenditures by Average Consumer Unit, 1993 <strong>and</strong> 1994 . . . . . . . . . . . 45<br />

2-8: Household Transportation Expenditures in Urban <strong>and</strong> Rural Areas, 1994 . . . . . . . . . . . . 50<br />

2-9: Comparison <strong>of</strong> Household Transportation Spending by Race, 1994 . . . . . . . . . . . . . . . 50<br />

2-10: Out-<strong>of</strong>-Town Household Expenditures, 1994 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51<br />

2-11: Government Transportation Expenditures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52<br />

2-12: Transportation Expenditures by All Levels <strong>of</strong> Government, 1982 <strong>and</strong> 1992 . . . . . . . . . . 54<br />

2-13: Transportation Expenditures by Level <strong>of</strong> Government Before Transfers . . . . . . . . . . . . . 54<br />

2-14: Federal Revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55<br />

2-15: Employment Cost Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58<br />

2-16: Expenditures <strong>of</strong> For-Hire Trucking <strong>and</strong> Public Warehousing, 1988–93 . . . . . . . . . . . . . . 60<br />

2-17: Expenditures for Purchased Transportation by Trucking Companies, 1988–93 . . . . . . . . 61<br />

2-18: Expenditures for the Class I Railroad Industry, 1988–93 . . . . . . . . . . . . . . . . . . . . . . . . 62<br />

3 TRANSPORTATION AND SAFETY<br />

3-1: Accidental Deaths, 1981–94 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66<br />

3-2: Accidents/Incidents by Transportation Mode, 1985–94 . . . . . . . . . . . . . . . . . . . . . . . . . 67<br />

3-3: Injuries by Transportation Mode, 1985–94 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68<br />

3-4: Fatalities by Transportation Mode, 1960–94 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69<br />

3-5: Fatality Rates by Transportation Mode, 1960–94 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70<br />

3-6: U.S. Motor Vehicle Fatalities, 1975–94 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72<br />

3-7: Accident Severity by Road-User Category, 1992 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72<br />

3-8: Number <strong>of</strong> Crashes by Main Crash Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81<br />

4 ENERGY AND TRANSPORTATION<br />

4-1: Federal Guidelines or Requirements for Purchase <strong>of</strong> Alternative Vehicles<br />

by Large Fleet Owners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96<br />

4-2: Use <strong>of</strong> Nonpetroleum Components in Gasoline by U.S. Refineries . . . . . . . . . . . . . . . . 97<br />

4-3: U.S. Refinery Net Production <strong>of</strong> Gasoline by Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98<br />

5 THE STATE OF TRANSPORTATION STATISTICS<br />

5-1: M<strong>and</strong>ated Topics for Data Collection <strong>and</strong> Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . 106<br />

PART II: TRANSPORTATION AND THE ENVIRONMENT<br />

7 ENVIRONMENTAL TRENDS AND THE U.S. TRANSPORTATION SYSTEM<br />

7-1: Federal Emissions Control St<strong>and</strong>ards for Light-Duty Gasoline Vehicles . . . . . . . . . . . . 134<br />

7-2: Carbon Monoxide Emissions by Source, 1985, 1992, <strong>and</strong> 1994 . . . . . . . . . . . . . . . . . 136<br />

7-3: Volatile Organic Compounds Emissions by Source, 1985, 1992, <strong>and</strong> 1994 . . . . . . . . . 137<br />

7-4: Nitrogen Oxides Emissions by Source, 1985, 1991, <strong>and</strong> 1994 . . . . . . . . . . . . . . . . . . . 139<br />

7-5: Lead Emissions by Source, 1985 <strong>and</strong> 1994 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140<br />

7-6: Carbon Dioxide-Equivalent Emissions <strong>of</strong> Alternative Fuels: Light-Duty Vehicles . . . . . . 145<br />

7-7: Constituents <strong>and</strong> Sources <strong>of</strong> Highway Run<strong>of</strong>f . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150<br />

7-8: Composition <strong>of</strong> a Typical Passenger Vehicle, 1976–94 . . . . . . . . . . . . . . . . . . . . . . . . . 156<br />

7-9: Hazardous Materials Incident Statistics, 1994 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161<br />

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