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AUTOMOBILE INDUSTRY:
ECONOMIC IMPORTANCE
Domestic Impact
Foreign Trade
HOW CARS ARE BUILT
Research, Design, and Development
Manufacturing and Assembly
Sales and Service
Customer Feedback
HISTORY OF THE AUTOMOBILE INDUSTRY
Early Automobile Concepts
Henry Ford and Mass Production
Other Automakers
The Great Depression of the 1930s
Labor Unions and Strikes
Wartime Production
Postwar Production
Automobile Safety
Foreign Imports and the Energy Crisis
The 1980s and 1990s
FUTURE AUTOMOBILE INDUSTRY TRENDS
Computerization
Alternative Fuel Research
Materials and Safety

AUTOMOBILE:
POWER SYSTEM
Engine
Engine Types
Fuel Supply
Exhaust System
Cooling and Heating System
DRIVETRAIN
Transmission
Front- and Rear-Wheel Drive
SUPPORT SYSTEMS
Suspension System
Wheels and Tires
CONTROL SYSTEMS
Steering
Brakes
ELECTRICAL SYSTEM
Ignition System
SAFETY FEATURES
HISTORY
Automobiles Through the Years
Internal-Combustion Engine
Early Electric Cars
AUTOMOBILES IN THE 20TH CENTURY
NEW TECHNOLOGIES

ROAD:
TYPES OF ROADS
Highways
Urban Streets
Rural Roads
ROADWAY ENGINEERING
Roadbed
Base Course
Wearing Course
Bituminous Pavement
Concrete Pavement
ROAD PLANNING AND ADMINISTRATION
HISTORY OF ROAD CONSTRUCTION


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Domestic Impact

The automobile industry directly influences the economies of the United States and other countries around the world. In a typical year, the U.S. automobile industry generates between 12 and 14 percent of manufacturers' shipments of durable goods (products designed to last at least three years). Automobile production consumes large amounts of iron, steel, aluminum, and natural rubber. The automobile industry also consumes more copper, glass, zinc, leather, plastic, lead, and platinum than any other U.S. industry.

Rising imported car sales in the United States during the 1980s threatened the economic strength of U.S. automakers, but domestic sales rebounded in the 1990s. U.S. import sales declined from 31 percent of the total car market in 1987 to 22.8 percent in 2000. With fewer imported and more domestic car sales, the U.S. auto industry has experienced strong job growth. In 2000 the automotive industry accounted for 9 percent of all U.S. jobs producing durable goods, the highest level since 1979. Automobile production workers earned compensation averaging $17.48 an hour—a 25 percent increase since 1990 and among the highest rates paid to any manufacturers of durable goods.

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PUBLIC TRANSPORTATION:
TYPES OF PUBLIC TRANSPORTATION
Buses
Paratransit
Streetcars
Light-Rail Transit
Heavy-Rail Transit
Commuter Rail Transit
Automated Guided Transit
Ferries
DEVELOPMENT OF PUBLIC TRANSPORTATION IN THE UNITED STATES
HISTORY

TRUCK:
LIGHT TRUCKS
MEDIUM TRUCKS
HEAVY TRUCKS
TRAILERS
TRUCKING OPERATIONS AND REGULATIONS
HISTORY